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David Martill

University of Portsmouth, School of Earth and Environmental Sciences, Faculty Member

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Address: Portsmouth, Portsmouth, United Kingdom

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Armando Marques-Guedes

UNL - New University of Lisbon

Bulgarian Academy of Sciences

Universidade de São Paulo

University of Otago

Santiago Ginnobili

Universidad de Buenos Aires

Natural History Museum, London

André Veldmeijer

American University in Cairo

Rice University

University of Oradea

Leyla Seyfullah

University of Vienna

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Papers by David Martill

A new tapejarid (Pterosauria, Azhdarchoidea) from the mid-Cretaceous Kem Kem beds of Takmout, southern Morocco

Cretaceous Research, Aug 1, 2020

A new pterosaur, Afrotapejara zouhri gen. et sp. is described on the basis of a partial rostral f... more A new pterosaur, Afrotapejara zouhri gen. et sp. is described on the basis of a partial rostral fragment from the Cretaceous Kem Kem beds of Takmout, near Erfoud in southern Morocco. The taxon is distinguished from all other Tapejaridae on the possession of a dorsal expansion of the rostral margin a short distance from the rostral tip. Tapejaroid features include edentuly, expansion of the rostral median crest and the presence of small foramina on the lateral margins and occlusal surface. The new specimen is the third edentulous pterosaur taxon from the Kem Kem beds and is the first unambiguous occurrence of Tapejaridae in Africa.

The taxonomy and systematics of Parapsicephalus purdoni (Reptilia: Pterosauria) from the Lower Jurassic Whitby Mudstone Formation, Whitby, U.K

Historical Biology, Feb 13, 2017

The Lower Jurassic (Toarcian) pterosaur Parapsicephalus purdoni (Newton, 1888) from the Whitby Mu... more The Lower Jurassic (Toarcian) pterosaur Parapsicephalus purdoni (Newton, 1888) from the Whitby Mudstone Formation of North Yorkshire is known from a three-dimensionally preserved skull with brain cast. Since Newton's original description, its taxonomic status has been contentious. Several cladistic studies have placed it within either Dimorphodontidae or Rhamphorhynchidae. Some investigators have suggested that it is a junior synonym of the Toarcian pterosaur Dorygnathus from the Posidonia Shale of southwestern Germany. The holotype skull (GSM 3166) is redescribed and its taxonomic status re-evaluated. Several apomorphies place it suggest it belongs in the Rhamphorhynchidae while autapomorphies of the palate and jugal distinguish Parapsicephalus from Dorygnathus, supporting the continued separation of the two genera. The skull unfortunately received little attention following its initial description. Lydekker (1891) mentioned it briefly in a comparison of Upper Jurassic quadrates he had identified as pterosaurian and argued that Newton (1888) had been mistaken in his description of the quadrate. Plieninger (1894) compared Scaphognathus purdoni with Campylognathus (Campylognathoides Strand, 1928) and suggested that it was less like S. crassirostris than Newton (1888) had suggested. The skull of Ornithodesmus (= Istiodactylus Howse et al., 2001) was compared with GSM 3166 and it was suggested the skull configuration may represent a basal phase of pterosaur cranial morphology (Hooley, 1912). Arthaber (1919) reexamined GSM 3166 and identified it as a distinct genus based on its arched dorsal skull margin, elongate nares, large 4. Systematic palaeontology

A giant pterosaur in the Early Cretaceous (Albian) of Tunisia

Journal of African Earth Sciences, Nov 1, 2018

A large, slender, recurved tooth with crenulated ornamentation and arcuate enamel border from the... more A large, slender, recurved tooth with crenulated ornamentation and arcuate enamel border from the Oum ed Diab Member of the Aïn el Guettar Formation (Early Cretaceous, Albian) of southern Tunisia is assigned to the Ornithocheiroidea (Pterosauria, Pterodactyloidea). It is most similar to the teeth of Coloborhynchus Owen, 1874 and Ludodactylus Frey et al., 2003, both members of the Ornithocheiridae. Although not the first dental record of pterosaurs in Tunisia, the specimen is notable for its size, and with a base of 16 mm diameter and calculated minimum crown height of 78 mm may represent an animal with a wingspan of six metres or more.

Systematic reassessment of the first Jurassic pterosaur from Thailand

Geological Society, London, Special Publications, Aug 14, 2017

A pterosaur humerus (PRC 64) from the Upper Jurassic of Thailand was initially assigned to the Az... more A pterosaur humerus (PRC 64) from the Upper Jurassic of Thailand was initially assigned to the Azhdarchoidea, an important clade of edentulous Cretaceous pterodactyloid pterosaurs. Here it is reassigned, on the basis of morphological comparisons and a phylogenetic analysis, to the Rhamphorhynchidae, a widely distributed clade of small to medium-sized seemingly piscivorous basal pterosaurs. This record extends the geographical range of rhamphorhynchids and confirms recent findings that these pterosaurs inhabited continental as well as marginal marine ecosystems.

The relationships of Cuspicephalus scarfi Martill and Etches, 2013 and Normannognathus wellnhoferi Buffetaut et al., 1998 to other monofenestratan pterosaurs

Contributions to zoology, May 8, 2015

The evolution of pterodactyloid pterosaurs occurred in a 'modular' fashion with 'pterodactyloid'-... more The evolution of pterodactyloid pterosaurs occurred in a 'modular' fashion with 'pterodactyloid'-type crania and cervical vertebrae evolving in pterodactyloid sister taxa-early monofenestratan pterosaurs-before later postcervical modifications marked the development of the true pterodactyloid condition. This means of evolution creates problems for distinguishing isolated pterodactyloid crania from those of non-pterodactyloid monofenestratans, and has led to uncertainty over the affinities of two Late Jurassic European pterosaurs known only from skulls, Cuspicephalus scarfi Martill and Etches, 2013 and Normanno gnathus wellnhoferi Buffetaut et al., 1998. Some aspects of their cranial anatomy suggest affinities to early pterodactyloids-specifically the Germanodactylidae-while others indicate a relationship with a group of non-pterodactyloid monofenestratans, the Wukongopteridae. Here, we characterise the skulls of Jurassic monofenestratans to provide greater insight into the identity of these pterosaurs. We find a suite of characters indicating that Cuspicephalus is a wukongopterid, notable for being a particularly large and long snouted member of the group, as well as the youngest, and the first European record of this clade. The affinities of Normannognathus are less clear however. We consider its previous allocation to the Germanodactylidae doubtful, and note some similarities it shares with ctenochasmatoid pterodactyloids, but the only known specimen is probably too fragmentary for confident referral to any specific clade within Monofenestrata.

Mosasauroid predation on an ammonite – Pseudaspidoceras – from the Early Turonian of south-eastern Morocco

Acta Geologica Polonica, Mar 1, 2017

A juvenile specimen of the ammonite Pseudaspidoceras from the Early Turonian of the Goulmima area... more A juvenile specimen of the ammonite Pseudaspidoceras from the Early Turonian of the Goulmima area in the Province of Er-Rachida in southeastern Morocco shows clear evidence of predation by a tooth-bearing vertebrate. Most of the body chamber is missing, as a result of post-burial compactional crushing. The adapertural part of the shell on the left flank of the surviving fragment of body chamber bears six circular punctuations; the right flank four. These are interpreted as the product of a single bite by a mosasauroid, probably a Tethysaurus. The taxonomy of the Goulmima Pseudaspidoceras is discuused in an appendix.

Speculations on the Role of Marine Reptile Deadfalls in Mesozoic Deep-Sea Paleoecology: Comment & Reply

PALAIOS, Feb 1, 1995

Stratigraphy of the Crato Formation

Cambridge University Press eBooks, Dec 13, 2007

A marine Late Cretaceous (Maastrichtian) coelacanth from North Africa

Cretaceous Research, Jun 1, 2021

An isolated, articulated, but crushed ossified lung of a mawsoniid ceolacanth is reported from up... more An isolated, articulated, but crushed ossified lung of a mawsoniid ceolacanth is reported from uppermost Cretaceous (upper Maastrichtian) of Oued Zem, Morocco. The specimen is the last record of a coelacanth before their pseudo-extinction at the end of the Mesozoic. The secimen is also the first record of a marine coelacanth in the Mesozoic of Morocco and the first occurrence of coelacanths in the phospahte deposits of North Africa. The large size of the lung suggests a fish estimated at between 3.65 m and 5.52 m total body length.

Giant pterosaurs from the Lower Cretaceous of the Isle of Wight, UK

Neues Jahrbuch für Geologie und Paläontologie, Dec 11, 1996

Aberrant rostral teeth of the sawfish Onchopristis numidus from the Kem Kem beds (?early Late Cretaceous) of Morocco and a reappraisal of Onchopristis in New Zealand

Journal of African Earth Sciences, Feb 1, 2012

Abstract A single crown of sawfish rostral ‘tooth’ with at least two barbs along its posterior ma... more Abstract A single crown of sawfish rostral ‘tooth’ with at least two barbs along its posterior margin is comparable with Onchopristis dunklei from the Woodbine Formation of Texas and Atlanticopristis equatorialis from the Alcântara Formation of Brazil. However, it is regarded here as an aberrant Onchopristis numidus , the typical form from North Africa. An aberrant morph of O. numidus is considered pathological. The taxonomic utility of barb number in pristid rostral ‘teeth’ is discussed. The genus and species Australopristis wiffeni gen. et sp. nov is erected to accommodate some multi-cusped rostral teeth from the Late Cretaceous of New Zealand.

Lithostratigraphic nomenclature of the Oxford Clay (Jurassic)

Proceedings of the Geologists' Association, 1992

... Publicaciones del Seminario de Paleontologia de Zaragoza, 2, 119-27. DUFF, KL 1975. Palaeoeco... more

Palaeoenvironment and taphonomy of a Late Jurassic (Late Tithonian) Lagerstätte from central Poland

Lethaia, 2013

A rich assemblage of exceptionally preserved marine and terrestrial fossils occurs in finegrained... more A rich assemblage of exceptionally preserved marine and terrestrial fossils occurs in finegrained limestones in the upper part of the Late Tithonian (Middle Volgian) shallowing upward carbonate sequence in Central Poland. The richest horizon, a deposit known locally as the Corbulomima horizon, is named after the shallow burrowing suspension feeding bivalve Corbulomima obscura, moulds of which occur in densities of up to 500 per square metre on some bedding planes. The fauna in this bed also includes organic and phosphatic remains of a wide range of other creatures including the exuviae of limulids and decapods, disarticulated fish skeletons and rare isolated pterosaur bones and teeth. There are also perfectly preserved dragonfly wings and beetle exoskeletons. The average stable carbon and oxygen isotope values for ostracod shells and fine-grained sediment from this horizon suggest precipitation of the calcium carbonate from warm seawater of normal marine salinity. The carbonate sediments overlying the fossiliferous horizon have been interpreted as nearshore to shoreface facies. These pass abruptly into coarse reworked intraclastic sediments interpreted as possible tsunami or storm surge over-wash deposits. The clasts in this deposit have more positive oxygen isotope values than those in the underlying limestone, which may indicate that they were lithified in a slightly more evaporative, perhaps intertidal, setting. The succession terminates with silicified fine-grained limestones likely to have formed in extremely shallow lagoonal environments. In contrast with the Solnhofen limestones of Lower Tithonian age in south-central Germany the Corbulomima horizon is interpreted as a transitional deposit formed in a shallow marine setting by rapid burial with elements of both Konservat-and Konzentrat-Lagerstätte preservation. h Konzentrat and Konservat-Lagerstätte, Taphonomy, Palaeoenvironment, Paleogeography, Late Jurassic, Poland.

Pterosaurs of the Crato Formation

Cambridge University Press eBooks, Dec 13, 2007

The Lower Oxford Clay: production and preservation of organic matter in the Callovian (Jurassic) of central England

Geological Society, London, Special Publications, 1991

... Since similar facies recur over an area of hundreds of square kilometres laterally and 10 to ... more ... Since similar facies recur over an area of hundreds of square kilometres laterally and 10 to 20 metres verti-cally, we assume that ... dant, and in some beds dominant, epifaunal suspension-feeding bivalves that Duff (1975) described as &amp;amp;amp;amp;amp;#x27;pendent&amp;amp;amp;amp;amp;#x27;: these include Meleagri-nella and ...

On pterodactyloid diversity in the British Wealden (Lower Cretaceous) and a reappraisal of “Palaeornis” cliftii Mantell, 1844

Cretaceous Research, Jun 1, 2009

Pterosaur remains from Wealden strata of southern England have largely been referred to the Ornit... more Pterosaur remains from Wealden strata of southern England have largely been referred to the Ornithocheiroidea, with only a solitary controversial claim of a lonchodectid providing evidence of heightened diversity. A reappraisal of a historic Wealden specimen suggests that ''Palaeornis'' cliftii Mantell, 1844, an isolated humerus from the Hastings Beds Group of West Sussex, is not an ornithocheiroid as previously reported but instead confirms the presence of lonchodectid pterosaurs in the British Wealden. The diversity of British Wealden pterosaurs is heightened further by a recently-discovered pterosaur humerus from the Wealden Group of the Isle of Wight, providing the first record of azhdarchoid pterosaurs in the British Lower Cretaceous. This specimen is thought to represent a non-azhdarchid neoazhdarchian and, being from Barremian deposits, represents the earliest known occurrence of such a pterosaur.

Reinterpretation of a Chilean pterosaur and the occurrence of Dsungaripteridae in South America

Geological Magazine, 2000

A fragmentary specimen of pterosaur originally assigned to the genus Pterodaustro Bonaparte, 1970... more A fragmentary specimen of pterosaur originally assigned to the genus Pterodaustro Bonaparte, 1970 is reassessed. The presence of a sagittal dorsal cranial crest on a fragment of nasopreorbital arcade with linear vertical trabeculae and the occurrence of alveolar protuberances on the os dentale indicate the new specimen has similarities with crested pterodactyloid pterosaurs of the family Ctenochasmatidae, and with members of the Dsungaripteridae. The presence of alveolar protuberances allows us to assign the specimen to the Dsungaripteridae. It forms the basis of a new genus and species, Domeykodactylus ceciliae.

Exceptionally well preserved pterosaur wing membrane from the Cretaceous of Brazil

Nature, Jul 1, 1989

A reappraisal of Arambourgiania (Pterosauria, Pterodactyloidea): One of the world's largest flying animals

Neues Jahrbuch für Geologie und Paläontologie, Dec 3, 1996

New perspectives on pterosaur palaeobiology

Geological Society, London, Special Publications, Nov 20, 2017

The current volume of the Journal of Paleontological Techniques is the third number of our yearly... more The current volume of the Journal of Paleontological Techniques is the third number of our yearly series dedicated to the publication of book reviews. We publish a collection of reviews early every year, of books that were published the year before, and which cover any aspect related to paleontology or natural history in general. Deadline for the submissions is generally at the end of the year, but proposals will have to be discussed with the editors beforehand, in order to avoid duplicate reviews on the same books. We also invite publishers to notify us about upcoming books, which we will be happy to advertise among our readers and followers on social media.

A new tapejarid (Pterosauria, Azhdarchoidea) from the mid-Cretaceous Kem Kem beds of Takmout, southern Morocco

Cretaceous Research, Aug 1, 2020

A new pterosaur, Afrotapejara zouhri gen. et sp. is described on the basis of a partial rostral f... more A new pterosaur, Afrotapejara zouhri gen. et sp. is described on the basis of a partial rostral fragment from the Cretaceous Kem Kem beds of Takmout, near Erfoud in southern Morocco. The taxon is distinguished from all other Tapejaridae on the possession of a dorsal expansion of the rostral margin a short distance from the rostral tip. Tapejaroid features include edentuly, expansion of the rostral median crest and the presence of small foramina on the lateral margins and occlusal surface. The new specimen is the third edentulous pterosaur taxon from the Kem Kem beds and is the first unambiguous occurrence of Tapejaridae in Africa.

The taxonomy and systematics of Parapsicephalus purdoni (Reptilia: Pterosauria) from the Lower Jurassic Whitby Mudstone Formation, Whitby, U.K

Historical Biology, Feb 13, 2017

The Lower Jurassic (Toarcian) pterosaur Parapsicephalus purdoni (Newton, 1888) from the Whitby Mu... more The Lower Jurassic (Toarcian) pterosaur Parapsicephalus purdoni (Newton, 1888) from the Whitby Mudstone Formation of North Yorkshire is known from a three-dimensionally preserved skull with brain cast. Since Newton's original description, its taxonomic status has been contentious. Several cladistic studies have placed it within either Dimorphodontidae or Rhamphorhynchidae. Some investigators have suggested that it is a junior synonym of the Toarcian pterosaur Dorygnathus from the Posidonia Shale of southwestern Germany. The holotype skull (GSM 3166) is redescribed and its taxonomic status re-evaluated. Several apomorphies place it suggest it belongs in the Rhamphorhynchidae while autapomorphies of the palate and jugal distinguish Parapsicephalus from Dorygnathus, supporting the continued separation of the two genera. The skull unfortunately received little attention following its initial description. Lydekker (1891) mentioned it briefly in a comparison of Upper Jurassic quadrates he had identified as pterosaurian and argued that Newton (1888) had been mistaken in his description of the quadrate. Plieninger (1894) compared Scaphognathus purdoni with Campylognathus (Campylognathoides Strand, 1928) and suggested that it was less like S. crassirostris than Newton (1888) had suggested. The skull of Ornithodesmus (= Istiodactylus Howse et al., 2001) was compared with GSM 3166 and it was suggested the skull configuration may represent a basal phase of pterosaur cranial morphology (Hooley, 1912). Arthaber (1919) reexamined GSM 3166 and identified it as a distinct genus based on its arched dorsal skull margin, elongate nares, large 4. Systematic palaeontology

A giant pterosaur in the Early Cretaceous (Albian) of Tunisia

Journal of African Earth Sciences, Nov 1, 2018

A large, slender, recurved tooth with crenulated ornamentation and arcuate enamel border from the... more A large, slender, recurved tooth with crenulated ornamentation and arcuate enamel border from the Oum ed Diab Member of the Aïn el Guettar Formation (Early Cretaceous, Albian) of southern Tunisia is assigned to the Ornithocheiroidea (Pterosauria, Pterodactyloidea). It is most similar to the teeth of Coloborhynchus Owen, 1874 and Ludodactylus Frey et al., 2003, both members of the Ornithocheiridae. Although not the first dental record of pterosaurs in Tunisia, the specimen is notable for its size, and with a base of 16 mm diameter and calculated minimum crown height of 78 mm may represent an animal with a wingspan of six metres or more.

Systematic reassessment of the first Jurassic pterosaur from Thailand

Geological Society, London, Special Publications, Aug 14, 2017

A pterosaur humerus (PRC 64) from the Upper Jurassic of Thailand was initially assigned to the Az... more A pterosaur humerus (PRC 64) from the Upper Jurassic of Thailand was initially assigned to the Azhdarchoidea, an important clade of edentulous Cretaceous pterodactyloid pterosaurs. Here it is reassigned, on the basis of morphological comparisons and a phylogenetic analysis, to the Rhamphorhynchidae, a widely distributed clade of small to medium-sized seemingly piscivorous basal pterosaurs. This record extends the geographical range of rhamphorhynchids and confirms recent findings that these pterosaurs inhabited continental as well as marginal marine ecosystems.

The relationships of Cuspicephalus scarfi Martill and Etches, 2013 and Normannognathus wellnhoferi Buffetaut et al., 1998 to other monofenestratan pterosaurs

Contributions to zoology, May 8, 2015

The evolution of pterodactyloid pterosaurs occurred in a 'modular' fashion with 'pterodactyloid'-... more The evolution of pterodactyloid pterosaurs occurred in a 'modular' fashion with 'pterodactyloid'-type crania and cervical vertebrae evolving in pterodactyloid sister taxa-early monofenestratan pterosaurs-before later postcervical modifications marked the development of the true pterodactyloid condition. This means of evolution creates problems for distinguishing isolated pterodactyloid crania from those of non-pterodactyloid monofenestratans, and has led to uncertainty over the affinities of two Late Jurassic European pterosaurs known only from skulls, Cuspicephalus scarfi Martill and Etches, 2013 and Normanno gnathus wellnhoferi Buffetaut et al., 1998. Some aspects of their cranial anatomy suggest affinities to early pterodactyloids-specifically the Germanodactylidae-while others indicate a relationship with a group of non-pterodactyloid monofenestratans, the Wukongopteridae. Here, we characterise the skulls of Jurassic monofenestratans to provide greater insight into the identity of these pterosaurs. We find a suite of characters indicating that Cuspicephalus is a wukongopterid, notable for being a particularly large and long snouted member of the group, as well as the youngest, and the first European record of this clade. The affinities of Normannognathus are less clear however. We consider its previous allocation to the Germanodactylidae doubtful, and note some similarities it shares with ctenochasmatoid pterodactyloids, but the only known specimen is probably too fragmentary for confident referral to any specific clade within Monofenestrata.

Mosasauroid predation on an ammonite – Pseudaspidoceras – from the Early Turonian of south-eastern Morocco

Acta Geologica Polonica, Mar 1, 2017

A juvenile specimen of the ammonite Pseudaspidoceras from the Early Turonian of the Goulmima area... more A juvenile specimen of the ammonite Pseudaspidoceras from the Early Turonian of the Goulmima area in the Province of Er-Rachida in southeastern Morocco shows clear evidence of predation by a tooth-bearing vertebrate. Most of the body chamber is missing, as a result of post-burial compactional crushing. The adapertural part of the shell on the left flank of the surviving fragment of body chamber bears six circular punctuations; the right flank four. These are interpreted as the product of a single bite by a mosasauroid, probably a Tethysaurus. The taxonomy of the Goulmima Pseudaspidoceras is discuused in an appendix.

Speculations on the Role of Marine Reptile Deadfalls in Mesozoic Deep-Sea Paleoecology: Comment & Reply

PALAIOS, Feb 1, 1995

Stratigraphy of the Crato Formation

Cambridge University Press eBooks, Dec 13, 2007

A marine Late Cretaceous (Maastrichtian) coelacanth from North Africa

Cretaceous Research, Jun 1, 2021

An isolated, articulated, but crushed ossified lung of a mawsoniid ceolacanth is reported from up... more An isolated, articulated, but crushed ossified lung of a mawsoniid ceolacanth is reported from uppermost Cretaceous (upper Maastrichtian) of Oued Zem, Morocco. The specimen is the last record of a coelacanth before their pseudo-extinction at the end of the Mesozoic. The secimen is also the first record of a marine coelacanth in the Mesozoic of Morocco and the first occurrence of coelacanths in the phospahte deposits of North Africa. The large size of the lung suggests a fish estimated at between 3.65 m and 5.52 m total body length.

Giant pterosaurs from the Lower Cretaceous of the Isle of Wight, UK

Neues Jahrbuch für Geologie und Paläontologie, Dec 11, 1996

Aberrant rostral teeth of the sawfish Onchopristis numidus from the Kem Kem beds (?early Late Cretaceous) of Morocco and a reappraisal of Onchopristis in New Zealand

Journal of African Earth Sciences, Feb 1, 2012

Abstract A single crown of sawfish rostral ‘tooth’ with at least two barbs along its posterior ma... more Abstract A single crown of sawfish rostral ‘tooth’ with at least two barbs along its posterior margin is comparable with Onchopristis dunklei from the Woodbine Formation of Texas and Atlanticopristis equatorialis from the Alcântara Formation of Brazil. However, it is regarded here as an aberrant Onchopristis numidus , the typical form from North Africa. An aberrant morph of O. numidus is considered pathological. The taxonomic utility of barb number in pristid rostral ‘teeth’ is discussed. The genus and species Australopristis wiffeni gen. et sp. nov is erected to accommodate some multi-cusped rostral teeth from the Late Cretaceous of New Zealand.

Lithostratigraphic nomenclature of the Oxford Clay (Jurassic)

Proceedings of the Geologists' Association, 1992

... Publicaciones del Seminario de Paleontologia de Zaragoza, 2, 119-27. DUFF, KL 1975. Palaeoeco... more

Palaeoenvironment and taphonomy of a Late Jurassic (Late Tithonian) Lagerstätte from central Poland

Lethaia, 2013

A rich assemblage of exceptionally preserved marine and terrestrial fossils occurs in finegrained... more A rich assemblage of exceptionally preserved marine and terrestrial fossils occurs in finegrained limestones in the upper part of the Late Tithonian (Middle Volgian) shallowing upward carbonate sequence in Central Poland. The richest horizon, a deposit known locally as the Corbulomima horizon, is named after the shallow burrowing suspension feeding bivalve Corbulomima obscura, moulds of which occur in densities of up to 500 per square metre on some bedding planes. The fauna in this bed also includes organic and phosphatic remains of a wide range of other creatures including the exuviae of limulids and decapods, disarticulated fish skeletons and rare isolated pterosaur bones and teeth. There are also perfectly preserved dragonfly wings and beetle exoskeletons. The average stable carbon and oxygen isotope values for ostracod shells and fine-grained sediment from this horizon suggest precipitation of the calcium carbonate from warm seawater of normal marine salinity. The carbonate sediments overlying the fossiliferous horizon have been interpreted as nearshore to shoreface facies. These pass abruptly into coarse reworked intraclastic sediments interpreted as possible tsunami or storm surge over-wash deposits. The clasts in this deposit have more positive oxygen isotope values than those in the underlying limestone, which may indicate that they were lithified in a slightly more evaporative, perhaps intertidal, setting. The succession terminates with silicified fine-grained limestones likely to have formed in extremely shallow lagoonal environments. In contrast with the Solnhofen limestones of Lower Tithonian age in south-central Germany the Corbulomima horizon is interpreted as a transitional deposit formed in a shallow marine setting by rapid burial with elements of both Konservat-and Konzentrat-Lagerstätte preservation. h Konzentrat and Konservat-Lagerstätte, Taphonomy, Palaeoenvironment, Paleogeography, Late Jurassic, Poland.

Pterosaurs of the Crato Formation

Cambridge University Press eBooks, Dec 13, 2007

The Lower Oxford Clay: production and preservation of organic matter in the Callovian (Jurassic) of central England

Geological Society, London, Special Publications, 1991

... Since similar facies recur over an area of hundreds of square kilometres laterally and 10 to ... more ... Since similar facies recur over an area of hundreds of square kilometres laterally and 10 to 20 metres verti-cally, we assume that ... dant, and in some beds dominant, epifaunal suspension-feeding bivalves that Duff (1975) described as &amp;amp;amp;amp;amp;#x27;pendent&amp;amp;amp;amp;amp;#x27;: these include Meleagri-nella and ...

On pterodactyloid diversity in the British Wealden (Lower Cretaceous) and a reappraisal of “Palaeornis” cliftii Mantell, 1844

Cretaceous Research, Jun 1, 2009

Pterosaur remains from Wealden strata of southern England have largely been referred to the Ornit... more Pterosaur remains from Wealden strata of southern England have largely been referred to the Ornithocheiroidea, with only a solitary controversial claim of a lonchodectid providing evidence of heightened diversity. A reappraisal of a historic Wealden specimen suggests that ''Palaeornis'' cliftii Mantell, 1844, an isolated humerus from the Hastings Beds Group of West Sussex, is not an ornithocheiroid as previously reported but instead confirms the presence of lonchodectid pterosaurs in the British Wealden. The diversity of British Wealden pterosaurs is heightened further by a recently-discovered pterosaur humerus from the Wealden Group of the Isle of Wight, providing the first record of azhdarchoid pterosaurs in the British Lower Cretaceous. This specimen is thought to represent a non-azhdarchid neoazhdarchian and, being from Barremian deposits, represents the earliest known occurrence of such a pterosaur.

Reinterpretation of a Chilean pterosaur and the occurrence of Dsungaripteridae in South America

Geological Magazine, 2000

A fragmentary specimen of pterosaur originally assigned to the genus Pterodaustro Bonaparte, 1970... more A fragmentary specimen of pterosaur originally assigned to the genus Pterodaustro Bonaparte, 1970 is reassessed. The presence of a sagittal dorsal cranial crest on a fragment of nasopreorbital arcade with linear vertical trabeculae and the occurrence of alveolar protuberances on the os dentale indicate the new specimen has similarities with crested pterodactyloid pterosaurs of the family Ctenochasmatidae, and with members of the Dsungaripteridae. The presence of alveolar protuberances allows us to assign the specimen to the Dsungaripteridae. It forms the basis of a new genus and species, Domeykodactylus ceciliae.

Exceptionally well preserved pterosaur wing membrane from the Cretaceous of Brazil

Nature, Jul 1, 1989

A reappraisal of Arambourgiania (Pterosauria, Pterodactyloidea): One of the world's largest flying animals

Neues Jahrbuch für Geologie und Paläontologie, Dec 3, 1996

New perspectives on pterosaur palaeobiology

Geological Society, London, Special Publications, Nov 20, 2017

The current volume of the Journal of Paleontological Techniques is the third number of our yearly... more The current volume of the Journal of Paleontological Techniques is the third number of our yearly series dedicated to the publication of book reviews. We publish a collection of reviews early every year, of books that were published the year before, and which cover any aspect related to paleontology or natural history in general. Deadline for the submissions is generally at the end of the year, but proposals will have to be discussed with the editors beforehand, in order to avoid duplicate reviews on the same books. We also invite publishers to notify us about upcoming books, which we will be happy to advertise among our readers and followers on social media.