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Naja

Lineage (NCBI): root » Eukaryota » Opisthokonta » Metazoa » Eumetazoa » Bilateria » Coelomata » Deuterostomia » Chordata » Craniata <chordata> » Vertebrata <Metazoa> » Gnathostomata <vertebrate> » Euteleostomi » Sarcopterygii » Tetrapoda » Amniota » Sauropsida » Sauria » Lepidosauria » Scleroglossa » Serpentes » Colubroidea » Elapidae » Elapinae

calibration from:
Head, J.J., K. Mahlow, and J. Müller. 2016. Fossil calibration dates for molecular phylogenetic analysis of snakes 2: Caenophidia, Colubroidea, Elapoidea, Colubridae. Palaeontologia Electronica, 19.2.2FC
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 node name
Naja     Look for this name in NCBI   Wikipedia   Animal Diversity Web 		 
  recommended citations
http://palaeo-electronica.org/content/fc-9 Head et al. 2016 		 
  node minimum age
17 Ma
The minimum age is based on the maximum age for MN4, the age of the Petersbuch 2 locality (Szyndlar and Schleich, 1993; Ivanov, 2000; Agustí et al., 2001). 		 
  node maximum age
None specified 		 
 primary fossil used to date this node 
 
UCBL 92856
Naja romani , Hoffstetter, 1939
Location relative to the calibrated node: Stem

[show fossil details]
     Locality: Petersbuch 2 locality
     Geological age: Miocene, Neogene, Cenozoic


More information in Fossilworks   PaleoBioDB
 
 

 
  phylogenetic justification
Assignment of to the genus Naja is based on an anteroposteriorly short and laterally recurved maxilla with two large anterior venom fangs and two solid posterior teeth (Hoffstetter, 1939; Bogert, 1943) and fenestra vestibuli completely or nearly completely bounded within the otooccipital (Hoffstetter, 1939; Szyndlar and Rage, 1990). 		 
  phylogenetic reference(s)
Hoffstetter, R. 1939. Contribution a l’étude des Elapidae actuels et fossiles et de l’ostéologie des ophidians. Archives du Muséum d'Histoire Naturelle de Lyon, 15:1-78.
Bogert, C.M. 1943. Dentitional phenomena in cobras and other elapids, with notes on adaptive modifications of fangs. Bulletin of the American Museum of Natural History, 81:285-360.
Szyndlar, Z. and Rage, J.C. 1990. West Palearctic cobras of the genus Naja (Serpentes: Elapidae): interrelationships among extinct and extant species. Amphibia-Reptilia, 11:385-400.
 
 tree image (click image for full size) 
tree image
Figure 1 from Head et al. (2016).
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