Temat: carcharodontosaurid - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Evidence of a new carcharodontosaurid from the Upper Cretaceous of Morocco
Autorzy:: Cau, A.
Dalla Vecchia, F.M.
Fabbri, M.
Powiązania:: https://bibliotekanauki.pl/articles/21129.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: theropod
evidence
new carcharodontosaurid
carcharodontosaurid
Upper Cretaceous
Cretaceous
Morocco
fossil
paleontology
Carcharodontosaurus
Deltadromeus
Spinosaurus
African theropod
Opis:: We report an isolated frontal of a large−bodied theropod from the Cenomanian “Kem Kem beds” of Morocco with an unusual morphology that we refer to a new carcharodontosaurid distinct from the sympatric Carcharodontosaurus. The specimen shows an unique combination of plesiomorphic and potentially autapomorphic features: very thick and broad bone with a complex saddle−shaped dorsal surface, and a narrow vertical lamina between the prefrontal and lacrimal facets. This study supports the hypothesis that a fourth large theropod was present in the Cenomanian of Morocco together with Carcharodontosaurus, Deltadromeus, and Spinosaurus.
Źródło:: Acta Palaeontologica Polonica; 2012, 57, 3
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Basal abelisaurid and carcharodontosaurid theropods from the Lower Cretaceous Elrhaz Formation of Niger
Autorzy:: Sereno, P C
Brusatte, S.L.
Powiązania:: https://bibliotekanauki.pl/articles/21335.pdf
Data publikacji:: 2008
Wydawca:: Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:: Allosauroidea
Cretaceous
Elrhaz Formation
paleontology
Eocarcharia
Africa
Lower Cretaceous
Theropoda
Kryptops
carcharodontosaurid theropod
Abelisauridae
theropod
Carcharodontosauridae
abelisaurid theropod
Niger
Opis:: We report the discovery of basal abelisaurid and carcharodontosaurid theropods from the mid Cretaceous (Aptian–Albian, ca. 112 Ma) Elrhaz Formation of the Niger Republic. The abelisaurid, Kryptops palaios gen. et sp. nov., is represented by a single individual preserving the maxilla, pelvic girdle, vertebrae and ribs. Several features, including a maxilla textured externally by impressed vascular grooves and a narrow antorbital fossa, clearly place Kryptops palaios within Abelisauridae as its oldest known member. The carcharodontosaurid, Eocarcharia dinops gen. et sp. nov., is represented by several cranial bones and isolated teeth. Phylogenetic analysis places it as a basal carcharodontosaurid, similar to Acrocanthosaurus and less derived than Carcharodontosaurus and Giganotosaurus. The discovery of these taxa suggests that large body size and many of the derived cranial features of abelisaurids and carcharodontosaurids had already evolved by the mid Cretaceous. The presence of a close relative of the North American genus Acrocanthosaurus on Africa suggests that carcharodontosaurids had already achieved a trans−Tethyan distribution by the mid Cretaceous.
Źródło:: Acta Palaeontologica Polonica; 2008, 53, 1
0567-7920
Pojawia się w:: Acta Palaeontologica Polonica
Dostawca treści:: Biblioteka Nauki

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