Definition of Pachyrhachis. Meaning of Pachyrhachis. Synonyms of Pachyrhachis

Here you will find one or more explanations in English for the word Pachyrhachis. Also in the bottom left of the page several parts of wikipedia pages related to the word Pachyrhachis and, of course, Pachyrhachis synonyms and on the right images related to the word Pachyrhachis.

Definition of Pachyrhachis

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Meaning of Pachyrhachis from wikipedia

- the form of small spurs, the tiny legs of Pachyrhachis included a hip, knee, and ankle joint. Pachyrhachis was originally described by Haas (1979, 1980)...
- lizards. Ophidia was defined as the "most recent common ancestor of Pachyrhachis and Serpentes (modern snakes), and all its descendants" by Lee and Caldwell...
- connection to the vertebrae. These include fossil species like Haasiophis, Pachyrhachis and Eupodophis, which are slightly older than Najash. This hypothesis...
- and a sacrum Najash Simoliophiidae Eupodophis Haasiophis Pachyophis Pachyrhachis Madtsoiidae Alamitophis Gigantophis Madtsoia Menarana Nidophis Powellophis...
- Along with its sister genus Pachyrhachis, Haasiophis does not possess either a sacral rib or vertebrae. Also like Pachyrhachis there is no preserved indication...
- to be more plesiomorphic than other Cretaceous limbed snakes, such as Pachyrhachis, Haasiophis or Eupodophis, in retaining a sacro-iliac contact and well-developed...
- and a sacrum Najash Simoliophiidae Eupodophis Haasiophis Pachyophis Pachyrhachis Madtsoiidae Alamitophis Gigantophis Madtsoia Menarana Nidophis Powellophis...
- Ophidia Simoliophiidae: Late Cretaceous Eupodophis Haasiophis Pachyophis Pachyrhachis Palaeophiidae: Late Cretaceous - Eocene Archaeophis Palaeophis Pterosphenus...
- PMID 30718525. Other known fossil snakes with developed hindlimbs, Haasiophis, Pachyrhachis and Eupodophis—all found in marine environments—all lack a sacral region...
- had hind legs is confirmed by fossil evidence: the Cretaceous snake Pachyrhachis problematicus had hind legs complete with hip bones (ilium, pubis, ischium)...