comment on this calibration


 node name
Morelia     Look for this name in NCBI   Wikipedia   Animal Diversity Web
  recommended citations 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
Morelia riversleighensis, Smith and Plane, 1985
Location relative to the calibrated node: Stem

[show fossil details]
     Locality: Henk’s Hollow Site in System C of the Riversleigh
     Geological age: Miocene, Neogene, Cenozoic

More information in Fossilworks   PaleoBioDB

  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) 
tree image
Figure 1 from Head (2015).