The Ksar Metlili Formation is a geological formation in eastern High Atlas of Morocco , it is late Tithonian to Berriasian in age. It is approximately 80 metres (260 ft) thick and primarily consists of mudstone and sandstone, with thin calcareous beds.[ 1] One of these calcareous beds near the middle of the sequence is an important microvertebrate locality.[ 2] Subsequent to the original site, several other localities have been sampled. The depositional environment is thought to be near shore deltaic.[ 3]
Amphibians of the Ksar Metlili Formation
Genus
Species
Location
Stratigraphic position
Abundance
Notes
Images
Anoualerpeton [ 4]
A. unicus
"Right premaxilla missing most of pars palatinum and lateralmost part of pars dentalis, with preserved tooth row containing three broken teeth and five tooth slots"
Albanerpetontid
Aygroua [ 5]
A. anoualensis
Frog
aff. Enneabatrachus [ 5]
Indeterminate
Discoglossid Frog
Rubricacaecilia [ 6]
R. monbaroni
Nearly complete right pseudodentary, partial left pseudodentaries, partial right pseudangular, partial palatine, atlas, postcranial vertebrae
Stem-caecilian
^ Haddoumi, Hamid; Allain, Ronan; Meslouh, Said; Metais, Grégoire; Monbaron, Michel; Pons, Denise; Rage, Jean-Claude; Vullo, Romain; Zouhri, Samir (January 2016). "Guelb el Ahmar (Bathonian, Anoual Syncline, eastern Morocco): First continental flora and fauna including mammals from the Middle Jurassic of Africa" (PDF) . Gondwana Research . 29 (1): 290–319. Bibcode :2016GondR..29..290H . doi :10.1016/j.gr.2014.12.004 . ISSN 1342-937X .
^ "Ksar Met-Lili, Anoual" . Paleobiology Database . Retrieved 24 August 2018 .
^ Lasseron, Maxime; Allain, Ronan; Gheerbrant, Emmanuel; Haddoumi, Hamid; Jalil, Nour-Eddine; Métais, Grégoire; Rage, Jean-Claude; Vullo, Romain; Zouhri, Samir (March 2020). "New data on the microvertebrate fauna from the Upper Jurassic or lowest Cretaceous of Ksar Metlili (Anoual Syncline, eastern Morocco)" . Geological Magazine . 157 (3): 367–392. Bibcode :2020GeoM..157..367L . doi :10.1017/S0016756819000761 . ISSN 0016-7568 . S2CID 204263709 .
^ Gardner, J. D; Evans, S. E; Sigogneau-Russell, D (2003). "New albanerpetontid amphibians from the Early Cretaceous of Morocco and Middle Jurassic of England" . Acta Palaeontologica Polonica (in Polish). 48 : 301–319. ISSN 0567-7920 . OCLC 108450287 .
^ a b Jones, M.E.H.; Evans, S. E.; Sigogneau-Russell, D. (2003). "Early Cretaceous frogs from Morocco" . Annals of Carnegie Museum . 72 (2): 65–97. doi :10.5962/p.215089 . S2CID 88962907 .
^ Evans, Susan E.; Sigogneau-Russell, Denise (March 2001). "A stem-group caecilian (Lissamphibia: Gymnophiona) from the Lower Cretaceous of North Africa" . Palaeontology . 44 (2): 259–273. Bibcode :2001Palgy..44..259E . doi :10.1111/1475-4983.00179 . ISSN 0031-0239 .
^ a b c Knoll, F.; Ruiz-Omeñaca, J. I. (July 2009). "Theropod teeth from the basalmost Cretaceous of Anoual (Morocco) and their palaeobiogeographical significance" . Geological Magazine . 146 (4): 602–616. Bibcode :2009GeoM..146..602K . doi :10.1017/S0016756809005950 . ISSN 0016-7568 . S2CID 128877571 .
^ a b c D. Sigogneau-Russell. 1991. Nouveaux Mammiferes theriens du Cretace inferieur du Maroc. Comptes-Rendus de l'Academis des Sciences du Paris, series II 313:279-285
^ a b Sigogneau-Russell D (1995). "Two possibly aquatic triconodont mammals from the Early Cretaceous of Morocco" . Acta Palaeontologica Polonica . 40 (2): 149–162. ISSN 0567-7920 . OCLC 5866546938 .
^ Lasseron, Maxime (October–November 2019). "Enigmatic teeth from the Jurassic–Cretaceous transition of Morocco: The latest known non-mammaliaform cynodonts (Synapsida, Cynodontia) from Africa?" . Comptes Rendus Palevol . 18 (7): 897–907. Bibcode :2019CRPal..18..897L . doi :10.1016/j.crpv.2019.05.002 .