comment on this calibration
Morelia
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
» Henophidia
| node name Morelia Look for this name in NCBI Wikipedia Animal Diversity Web | ||
|
recommended citations http://palaeo-electronica.org/content/fc-6 Head, 2015 |
||
|
node minimum age 12.5 Ma Morelia riversleighensis was recovered from the Henk’s Hollow Site in System C of the Riversleigh fossil sites (Scanlon, 2001). The minimum age estimate is based on faunal correlation between System C and the Bullock Creek Local Fauna (Travouillon et al., 2006; Travouillon et al., 2009). | ||
|
node maximum age 0 Ma None specified. | ||
| primary fossil used to date this node | ||
QM F12926 | ||
|
phylogenetic justification
The hypodigm of M. riversleighensis is assigned to the genus on the basis of: 1) two teeth per side of the premaxilla; 2) anterior palatine teeth longer, thicker, and more vertical than posterior teeth; 3) deeply concave posterior margin of palatine choanal process; 4) concave anterior margin of premaxilla; 5) ventral openings of premaxilla channels posterior to tooth positions; and 6) maxillary lateral budges present (Scanlon, 2001, p. 6). |
||
|
phylogenetic reference(s)
Scanlon, J.D. 2001. Montypythonoides : the Miocene snake Morelia riversleighensis (Smith and Plane, 1985) and the geographical origin of pythons. Memoirs of the Association of Australasian Palaeontologists, 25:1-35.
|
||
| tree image (click image for full size) | ||
|
Figure 1 from Head (2015).
|