Sacral region of the holotype of the “legged snake” Najash rionegrina
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Class:
Reptilia
Order:
Squamata
Clade:
Ophidia
Genus:
†Najash Apesteguía & Zaher, 2006
Type species
Najash rionegrina
Apesteguía & Zaher, 2006
Najash is an extinct genus of basal snake from the Late Cretaceous Candeleros Formation of Patagonia.[1] Like a number of other Cretaceous and living snakes it retained hindlimbs, but Najash is unusual in having well-developed legs that extend outside the rib cage, and a pelvis connected to the spine.
^Apesteguía, S.; Zaher, H. (2006). "A Cretaceous terrestrial snake with robust hindlimbs and a sacrum". Nature. 440 (7087): 1037–1040. Bibcode:2006Natur.440.1037A. doi:10.1038/nature04413. PMID 16625194. S2CID 4417196.
Najash is an extinct genus of basal snake from the Late Cretaceous Candeleros Formation of Patagonia. Like a number of other Cretaceous and living snakes...
to incorporate other more basal stem-snakes, such as the Late Cretaceous Najash rionegrina or the Jurassic Diablophis and Portugalophis[citation needed]...
camposi, Wonambi naracoortensis, Nanowana spp., unnamed Yurlunggur spp., Najash rionegrina) have associated or articulated parts of skeletons. Of the genera...
fossil snake relative, Najash rionegrina, was a two-legged burrowing animal with a sacrum, and was fully terrestrial. Najash, which lived 95 million...
Chordata Class: Sauropsida Order: Squamata Genera with hindlimbs and a sacrum Najash Simoliophiidae Eupodophis Haasiophis Pachyophis Pachyrhachis Madtsoiidae...
leglessness within the suborder Serpentes. The species of extinct snake Najash rionegrina was first described in 2006, and has been proposed as the earliest...
Chordata Class: Sauropsida Order: Squamata Genera with hindlimbs and a sacrum Najash Simoliophiidae Eupodophis Haasiophis Pachyophis Pachyrhachis Madtsoiidae...
Chordata Class: Sauropsida Order: Squamata Genera with hindlimbs and a sacrum Najash Simoliophiidae Eupodophis Haasiophis Pachyophis Pachyrhachis Madtsoiidae...
Chordata Class: Sauropsida Order: Squamata Genera with hindlimbs and a sacrum Najash Simoliophiidae Eupodophis Haasiophis Pachyophis Pachyrhachis Madtsoiidae...
developed in Sanajeh in a similar way to other madtsoiids and the genus Najash. The neural spines are thin and angled posteriorly. In Sanajeh, the synapophyses...
shortages (Ihtekar), overbidding for the sole purpose of driving the prices up (Najash) and concealment of vital information in a transaction from the other party...
Priosphenodon avelasi and Tika giacchinoi) primitive snakes (including Najash rionegrina) several turtles (including 2 species of Prochelidella) an azhdarchid...
Chordata Class: Sauropsida Order: Squamata Genera with hindlimbs and a sacrum Najash Simoliophiidae Eupodophis Haasiophis Pachyophis Pachyrhachis Madtsoiidae...
formation include the rhynchocephalians Tika and Priosphenodon, the snake Najash, the mammal Cronopio dentiacutus, the theropods Alnashetri, Buitreraptor...
Chordata Class: Sauropsida Order: Squamata Genera with hindlimbs and a sacrum Najash Simoliophiidae Eupodophis Haasiophis Pachyophis Pachyrhachis Madtsoiidae...
Paleontology portal Other known fossil snakes with legs: Eupodophis Haasiophis Najash Bardet, Nathalie (2008). "The Cenomanian-Turonian (late Cretaceous) radiation...
Chordata Class: Sauropsida Order: Squamata Genera with hindlimbs and a sacrum Najash Simoliophiidae Eupodophis Haasiophis Pachyophis Pachyrhachis Madtsoiidae...
Other primitive reptiles lived in the area, such as the primitive snake Najash, the crocodile Araripesuchus, along with turtles, fish, pipid frogs and...
Chordata Class: Sauropsida Order: Squamata Genera with hindlimbs and a sacrum Najash Simoliophiidae Eupodophis Haasiophis Pachyophis Pachyrhachis Madtsoiidae...
Chordata Class: Sauropsida Order: Squamata Genera with hindlimbs and a sacrum Najash Simoliophiidae Eupodophis Haasiophis Pachyophis Pachyrhachis Madtsoiidae...
Chordata Class: Sauropsida Order: Squamata Genera with hindlimbs and a sacrum Najash Simoliophiidae Eupodophis Haasiophis Pachyophis Pachyrhachis Madtsoiidae...
transitional fossils Other known fossil snakes with legs: Pachyrhachis Haasiophis Najash "Fossilized Snake With Two Legs Found - Science - redOrbit". 10 April 2008...
Chordata Class: Sauropsida Order: Squamata Genera with hindlimbs and a sacrum Najash Simoliophiidae Eupodophis Haasiophis Pachyophis Pachyrhachis Madtsoiidae...
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