![]() ![]() indicus lacks specializations of modern egg-eaters and of macrostomatans, and skull and vertebral synapomorphies place it in an intermediate position in snake phylogeny. We interpret this pattern as “ethofossil” preservation of feeding behavior. indicus frequented nesting grounds and preyed on hatchling sauropods. Multiple snake-egg associations at the site strongly suggest that S. indicus was fossilized in association with a sauropod dinosaur egg clutch, coiled around an egg and adjacent to the remains of a ca. nov., recovered from Upper Cretaceous rocks of western India. We report on a partial skeleton of a new 3.5-m-long snake, Sanajeh indicus gen. The sequence of osteological and behavioral modifications involved in the evolution of the macrostomatan condition has remained an open question because of disagreement about the origin and interrelationships of snakes, the paucity of well-preserved early snake fossils on many continental landmasses, and the lack of information about the feeding ecology of early snakes. In contrast, basal snakes lack these adaptations and feed primarily on small prey items. ISBN 0-7869-3277-5.Derived large-mouthed snakes (macrostomatans) possess numerous specializations in their skull and lower jaws that allow them to consume large vertebrate prey. Edited by Michele Carter, Scott Fitzgerald Gray. ↑ Christopher Perkins, Will Doyle, Steve Winter (September 19, 2017). ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |