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Geological formation in Portugal
The Alcobaça Formation, previously known as the Guimarota Formation and also known as the Consolação Unit,[1] is a geological formation in Portugal.[2] It dates back to the Kimmeridgian stage of the Late Jurassic. It is an important source of information on the diversity of Late Jurassic mammals.[3][4] Many of the fossils were collected from the now disused and flooded Camadas de Guimarota coal mine.
Vertebrate paleofauna[edit]Dinosaur eggs are geographically located in Lisbon District, Portugal.[5] Dinosaur tracks are geographically located in Leiria District, Portugal.[6]
Osteichthyes of the Alcobaça Formation Genus Species Location Stratigraphic Position Material Notes Images Macromesodon[7] Indeterminate Guimarota Isolated teeth Proscinetes[7] Indeterminate Guimarota Isolated teeth and prearticulars "Lepidotes"[7] Indeterminate Guimarota isolated lateral teeth, lower jaws, ganoid scales and isolated skull bones Two species of different size can be distinguished from the fossil material[7] Ionoscopidae[7] Indeterminate Guimarota Isolated teeth Macrosemiidae[7] Indeterminate Guimarota Isolated grasping tooth Caturus?[7] Indeterminate Guimarota Isolated Teeth and a partial skull Pachycormidae[7] Indeterminate GuimarotaAlbanerpetontids are one of the most numerous faunal components of the Guimarota mine with around 9000 isolated remains, including parts of the skull and limbs. Remains of indeterminate salamanders and frogs are also present but far rarer.[7]
Choristoderes of the Alcobaça Formation Genus Species Location Stratigraphic position Material Notes Images Cteniogenys Indeterminate GuimarotaIndeterminate euornithopod remains located in Lisbon District.[5] Indeterminate stegosaurid remains present in Lisbon District.[5]
Ornithischians of the Alcobaça Formation Genus Species District Stratigraphic position Abundance Notes Images Dacentrurus[5] D. armatus[5] Lisboa[5] Eousdryosaurus[8] E. nanohallucis Lisboa[5] Stegosaurus[9] S. cf. ungulatus "...one tooth, five cervical vertebrae (including the axis), five dorsal vertebrae, cervical and dorsal ribs, three caudal vertebrae, chevrons, preacetabular process of the left ilium, right tibia, fibula, astragalus and [calcaneus], a cervical plate, and several fragments of plates." Trimucrodon[5] T. cuneatus[5] Lisboa[5] Later determined to be indeterminate ornithischian remains.[5]Indeterminate sauropod remains located in Leiria and Lisboa.[10]
Mammals of the Alcobaça Formation Genus Species Location Stratigraphic position Material Notes Images Bathmochoffatia B. hapax Guimarota A paulchoffatiid multituberculate Bernardodon B. sp, B. atlanticus Porto Pinheiro A pinheirodontid multituberculate Drescheratherium D. acutum Guimarota A paurodontid dryolestidan Dryolestes D. leirensis Guimarota A dryolestid dryolestidan Ecprepaulax E. anomala Porto Pinheiro A pinheirodontid multituberculate Guimarotodon G. leiriensis Guimarota A paulchoffatiid multituberculate Guimarotodus G. inflatus Guimarota A dryolestid dryolestidan Haldanodon H. exspectatus Guimarota A docodont Henkelodon H. naias, H. sp Guimarota A paulchoffatiid multituberculate Henkelotherium H. guimarotae Guimarota A dryolestidan Iberodon I. quadrituberculatus Porto Pinheiro A pinheirodontid multituberculate Kielanodon K. hopsoni Guimarota A paulchoffatiid multituberculate Krebsotherium K. lusitanicum Guimarota A dryolestid dryolestidan Kuehneodon K. guimarotensis, K. dietrichi, K. simpsoni, K. uniradiculatus, K. sp Guimarota A paulchoffatiid multituberculate Laolestes L. andresi Porto Pinheiro A dryolestid dryolestidan Meketibolodon M. robustus Guimarota A paulchoffatiid multituberculate Meketichoffatia M. krausei, M. sp Guimarota A paulchoffatiid multituberculate Nanolestes N. krusati Porto Pinheiro A cladotherian N. drescherae Guimarota Paulchoffatia P. delgadoi Guimarota A paulchoffatiid multituberculate Pinheirodon P. sp, P. vastus, P. pygmaeus Porto Pinheiro A pinheirodontid multituberculate Plesiochoffatia P. thoas, P. peperethos Guimarota A paulchoffatiid multituberculate Portopinheirodon P. asymmetricus Porto Pinheiro A dryolestid dryolestidan Priacodon Indeterminate Porto Pinheiro A triconodontid Proalbionbaatar P. plagiocyrtus Guimarota A multituberculate of uncertain placement Pseudobolodon P. dryas, P krebsi, P. oreas Guimarota A paulchoffatiid multituberculate Renatodon R. amalthea Guimarota A paulchoffatiid multituberculate ? Tinodon Indeterminate Porto Pinheiro A tinodontid symmetrodont Xenachoffatia X. oinopion Guimarota A paulchoffatiid multituberculate Paulchoffatiidae Indeterminate Guimarota 4 distinct genera with 7 species Pinheirodontidae Indeterminate Porto Pinheiro Color key{{citation}}
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