Papers by Silvério Figueiredo
Journal of Geoscience and Environment Protection, 2021
We present a new tracksite with multiple dinosaur tracks from the lowermost Barremian (Lower Cret... more We present a new tracksite with multiple dinosaur tracks from the lowermost Barremian (Lower Cretaceous) of the Cape Espichel (Sesimbra, Portugal). The tracks are localized on three beds on the top carbonate beds of the Areia do Mastro Formation. Those bioclastic, nodular limestones were deposited in a very shallow subtidal-intertidal, restricted lagoon environment. The track surfaces are very dinoturbated, with a substantial number of tracks. Several tracks assign to sauropods, ornithopods and theropods dinosaurs were recorded. Due to heavy bioturbation and the preservation conditions, it is not possible to define trackways; some preliminary work done on the tracks could disclose some behaviours of their producers. Several species of carnivore and herbivore dinosaurs crossed that large area at different times. Herbivores may have used the lagoon margin as passage between feeding spots, while carnivores frequented the area to hunt in groups or individually.
Arkeos: perspectivas em diálogo, 2013
Cuaternario y geomorfología, Jun 27, 2022
The Gruta da Furninha is a cave-site in Lower Jurassic limestones, of mainly marine genesis locat... more The Gruta da Furninha is a cave-site in Lower Jurassic limestones, of mainly marine genesis located at ~850 m SE of the Carvoeiro Cape, on the southern coast of the Peniche peninsula (central western mainland Portugal). The entrance gallery, situated in the middle of the cliff, is at ~15 m of altitude. This cave contained a rich and diverse fossiliferous set of Late Pleistocene vertebrates, distributed in several stratigraphic levels, currently housed at the Geological Museum of LNEG (Lisbon). The cave had a record of primitive human occupations documented by 106 Middle to Late Paleolithic artefacts, found in the lower lithostratigraphic unit (Pleistocene). It had also another human occupation in an upper unit (Neolithic, Holocene), where were found human skeleton elements and artefacts. This study focuses on two teeth previously identified as crocodile, housed in collections of the Geological Museum in the assemblages of the Furninha Cave and on a set of five bones, housed at Centro Português de Geo-História e Pré-História (CPGP) collected in a marine terrace in the Furninha cliff. The occurrence of crocodile remains in the Upper Pleistocene of Portugal is not consistent with the fossil record of this period or with the environmental conditions associated with the fully marine paleoenvironments around Furninha Cave. A more detailed analysis of these teeth and their stratigraphic location, now supports that they are cetacean teeth with ~80 ka, which is consistent with the fossil association, depositional environments and climate conditions of the Late Pleistocene in mainland Portugal. To add to these two teeth, in 2017 in sedimentary field work in the marine terraces on the cliffs of the Gruta da Furninha, at the level of 4 to 7 m, found five bones remains, which could be carpal bones of marine mammals.
Cretaceous Research, Sep 1, 2022
Cretaceous Research, Mar 1, 2022
Gostaria de agradecer a ajuda, as críticas e as opiniões de colegas e amigos que valorizaram a ve... more Gostaria de agradecer a ajuda, as críticas e as opiniões de colegas e amigos que valorizaram a versão final desta tese. Em primeiro lugar uma palavra de agradecimento ao Dr. Júlio Pinto, pela ajuda na revisão ortográfica dos textos e as sugestões dadas durante essa revisão, e ao Dr. Manuel Américo também pela ajuda na revisão e sugestões aos textos e pela ajuda na tradução do resumo em inglês. Ao CIPA gostaria de agradecer a disposição da colecção de referência para o estudo osteológico, em especial ao Dr. Carlos Pimenta pela ajuda na identificação taxonómica de alguns ossos. Ao Doutor Pedro Cunha, gostaria de agradecer a ajuda e as sugestões na elaboração dos textos sobre a caracterização geológica de Portugal, das jazidas e da interpretação paleoambiental. Ao Doutor Miguel Ramalho, um agradecimento pela autorização do estudo dos materiais em depósito no MG e ao José António e ao Eng. Jorge Sequeira, a ajuda no acesso e na disposição dessas colecções. Ao Dr. Luís Raposo, director do MNA, pela autorização do acesso aos restos osteológicos do Pego do Diabo e pela leitura e criticas dos textos sobre o Paleolítico de Portugal e a caracterização arqueológica das várias jazidas abordadas nesta tese. Ao Doutor Pierluigi Rosina, gostaria de agradecer as sugestões dadas. À Câmara Municipal do Bombaral, em especial à Dr.ª Cláudia, o acesso aos materiais da Gruta Nova da Columbeira. Gostaria também de agradecer à Doutora Liliana Povoas do MNHN, a disposição da colecção de microfauna da Gruta do caldeirão e a disposição dos meios para o estudo dessa colecção. À Dr.ª Vera Cabedal, um agradecimento pela ajuda na formatação dos textos, ao Dr. Mário Santos a ajuda no tratamento de alguns dados e na elaboração de alguns quadros e gráficos e à Liliana Faustino o tratamento de algumas das imagens. À minha família e amigos tenho a agradecer o apoio que sempre me deram. V EPIGRAFE " Aujourd'hui l'anatomie comparative a atteint un tel point de perfection que, après l'inspection d'un seul os, on peut souvent déterminer la classe, et parfois voire même le genre de l'animal auquel il a appartenu" Georges Cuvier "O Universo é feito essencialmente de coisa nenhuma. Intervalos, distâncias, buracos, porosidade etérea. Espaço vazio, em suma. O resto, é a matéria. Daí, que este arrepio, este chamá-lo e tê-lo, erguê-lo e defrontá-lo esta fresta de nada aberta no vazio, deve ser um intervalo." Poema "Máquina do Mundo"
Palaeoworld, Sep 1, 2022
This is a PDF file of an article that has undergone enhancements after acceptance, such as the ad... more This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.
Papers in Palaeontology
The c. 100 myr extensive fossil record of bee brood nests and cells (calichnia) in siliciclastic ... more The c. 100 myr extensive fossil record of bee brood nests and cells (calichnia) in siliciclastic sedimentary deposits, or palaeosols, is virtually devoid of the presence of their producers. The absence of a more specific assignment to a producer of the different ichnogenera of the ichnofamily Celliformidae precludes their use in phylogenetic and palaeobiogeographic studies. Omission surfaces developed in incipient carbonate palaeosols during the late Holocene (middle Neoglacial), c. 2975 yr cal BP, on the southwest coast of mainland Portugal show insect calichnia in dense ichnofabrics dominated by shallow discrete cells (Palmiraichnus castellanosi) and cells at the terminus of vertical shafts. At Carreira Brava, one of the studied sites, bees ready to abandon their cells were found in an exceptional state of preservation inside the sealed brood chambers. The chambers also preserve the inner cell hydrophobic polymerized membrane and remains of the monospecific Brassicaceae‐type polle...
Quaternary Science Reviews
Proceedings of the Geologists' Association
Journal of Iberian Geology
Journal of Iberian Geology
The fossil remains of birds from the Miocene of Portugal are scarce, encompassing a total of twel... more The fossil remains of birds from the Miocene of Portugal are scarce, encompassing a total of twelve specimens, from nine paleontological outcrops located in Leiria (central Portugal), southern sector of Setúbal Peninsula and along the lower Tagus Basin. This study focuses on a new specimen found in the Praia do Penedo Norte (Sesimbra) coastal cliff corresponding to a coracoid bone, attributed to Morus sp., a sulid bird, biostratigraphically framed by calcareous nannofossils within the middle Miocene (Langhian).
Scientific Reports
In the Iberian Peninsula the fossil record of artiodactyls spans over 53 million years. During th... more In the Iberian Peninsula the fossil record of artiodactyls spans over 53 million years. During the Pleistocene, wild cattle species such as Bison and especially Bos became common. In Late Pleistocene, the aurochs (Bos primigenius) was widespread and the only bovine living along the large river valleys of southern Iberia. Although commonly found in fossil sites and especially in cave bone assemblages, the trace fossil record of aurochs was known worldwide only from the Holocene. Large bovine and roe deer/caprine tracks were found in at least five horizons of the early Late Pleistocene (MIS 5) beach and eolian deposits of Cape Trafalgar (Cadiz Province, South of Spain). The large bovine tracks are formally described as Bovinichnus uripeda igen. et isp. nov. and compared with the record of aurochs tracks, large red deer tracks and steppe bison biogeographical distribution in Iberia. Aurochs were the most likely producers of the newly described Trafalgar Trampled Surface (TTS) and some ...
EnglishThe main characteristics of the Pleistocene deposits with remains of Paleoloxodon antiquus... more EnglishThe main characteristics of the Pleistocene deposits with remains of Paleoloxodon antiquus in Portugal, are here presented and interpreted. portuguesSintetizam-se as principais caracteristicas das jazidas plistocenicas com restos de Paleoloxodon antiquus, em Portugal e faz-se a sua interpretacao.
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Papers by Silvério Figueiredo