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Archosaurs are a subgroup of archosauriforms, which themselves are a subgroup of archosauromorphs. Both the oldest archosauromorph (Protorosaurus speneri) and the oldest archosauriform (Archosaurus rossicus) lived in the late Permian. The oldest true archosaurs appeared during the Olenekian stage (247–251 Ma) of the Early Triassic.
Archosaurus (meaning "ruling lizard") is an extinct genus of carnivorous proterosuchid archosauriform reptile. [1] Its fossils are dated to the latest Permian of Russia and Poland , it is one of the earliest known archosauriforms.
Atoposauridae is a family of crocodile-like archosaurs belonging to Neosuchia. [1] The majority of the family are known from Late Jurassic to Early Cretaceous marine deposits in France, Portugal, and Bavaria in southern Germany.
The new name Pan-Archosauria was established for the broader total group of Archosauromorpha, similar to the definition of Dilkes (1998). [ 9 ] In 2016, Martin Ezcurra named a subgroup of Archosauromorpha, Crocopoda ("crocodile feet").
Batrachotomus / ˌ b æ t r ə ˈ k ɒ t oʊ m ə s / is a genus of prehistoric archosaur. Fossils of this animal have been found in southern Germany and dated from the Ladinian stage of the Middle Triassic period, around 242 to 237 million years ago. Batrachotomus was described by palaeontologist David J. Gower 22 years after its discovery.
Modern paleontologists define Archosauria as a crown group that includes the most recent common ancestor of living birds and crocodilians, and all of its descendants. The base of Archosauria splits into two clades: Pseudosuchia , which includes crocodilians and their extinct relatives, and Avemetatarsalia , which includes birds and their ...
"Rauisuchia" is a paraphyletic group of mostly large and carnivorous Triassic archosaurs. [2] Rauisuchians are a category of archosaurs within a larger group called Pseudosuchia, which encompasses all archosaurs more closely related to crocodilians than to birds and other dinosaurs. First named in the 1940s, Rauisuchia was a name exclusive to ...
Portugal: More than one hundred eggs have been referred to this taxon Lourinhasaurus: 1998 Lourinhã Formation (Late Jurassic, Kimmeridgian) Portugal: Closely related to Camarasaurus but with proportionately longer forelimbs Lusotitan: 2003 Lourinhã Formation (Late Jurassic, Tithonian) Portugal: Originally named as a European species of ...