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Modern crocodilians, a subgroup of Neosuchia, emerged during the Late Cretaceous. [8] Crocodylomorph diversity was severely reduced by the end-Cretaceous extinction event . [ 9 ] The last group of terrestrially adapted crocodylomorphs was the Sebecidae , a group of large predatory notosuchians which persisted in South America until the middle ...
The name Pseudosuchia was originally given to a group of superficially crocodile-like prehistoric reptiles from the Triassic period, but fell out of use in the late 20th century, especially after the name Crurotarsi was established in 1990 to label the clade (evolutionary grouping) of archosaurs encompassing most reptiles previously identified as pseudosuchians.
Modern crocodilians also have a deltopectoral crest, but it is positioned laterally and anchors to muscles that pull the arms up to the sides, not forward. The muscle thought to have facilitated forward movement in Stratiotosuchus is called the deltoideus clavicularis ; it is also present in modern crocodilians, which use it for high walking.
Neosuchia is a clade within Mesoeucrocodylia that includes all modern extant crocodilians and their closest fossil relatives. [1] It is defined as the most inclusive clade containing all crocodylomorphs more closely related to Crocodylus niloticus (the Nile Crocodile ) than to Notosuchus terrestris . [ 2 ]
Out of the 28 species of crocodiles on the planet today, there is one species that has the distinction of being the largest living reptile on Earth. No, it is not the fierce Nile Crocodile – it ...
The first fossil materials were collected by an expedition of South African Museum in April 1963 led by Alfred W. Crompton. [1] The materials were collected from the Lower Jurassic Red Bed Formation (= Upper Elliot Formation) of the Stormberg, so that as soon as they found out that the fossils belongs to a new crocodilian species, they named the species Orthosuchus Stormbergi in a paper ...
A crocodile-like creature bit the neck of a flying dinosaur some 76 million years ago – and scientists have proof.. Archaeologists found the fossilized neck bone of the young pterosaur in Canada ...
The researchers identified a series of 9-inch-long prints as belonging to an ancient crocodylomorph, a group that includes living crocodilians (alligators, crocodiles, and other similarly-sized ...