BOIDAE (Albino, 1996)

Albino, Adriana María, 2000, New record of snakes from the Cretaceous of Patagonia (Argentina), Geodiversitas 22 (2), pp. 247-253 : 250

Family? BOIDAE or MADTSOIIDAE

MATERIAL EXAMINED. — MPEF-PV 646, MPEF- PV 647, MPEF-PV 648 and MPEF-PV 649, incomplete vertebrae.

REMARKS

These specimens cannot be accurately determined due to their fragmentary preservation. Zygapophyses, synapophyses and posterior part of the neural arch are not completely preserved in the most complete specimen (MPEF-PV 646). It is a medium-sized vertebra and it has an elongate and narrow vertebral centrum, wide neural arch, large cotyle, thick and narrow zygosphene, left prezygapophysis located at a high level and inclined above the horizontal, and paracotylar foramina present. It is not possible to see whether there is a prezygapophysial process; however, the vertebra is rather distinct from all other vertebrae described in this paper. MPEF-PV 647 is a thick and large zygosphene reminiscent to that of large boids or madtsoiids. Other remains (MPEF- PV 648 and 649) are extremely fragmentary and tentatively assigned to boid or madtsoiid.