which could have helped the lips stay in place and protect the jaw while feeding

Length 161mm

where synapsid reptiles are abundant

a group of animals that shared characteristics of both reptiles and mammals and that lived during the Permian period

Lystrosaurus murrayi Longisquama which could have helped theLystrosaurus murrayi was a remarkable creature that lived approximately 250 million years ago during the Permian period. It was an animal similar to a reptile, but in reality it belonged to the group of therapsids, a precursor lineage of mammals. It had a stocky body and short legs, suggesting that it spent most of its time on dry land. Its skull had characteristics adapted for a herbivorous diet, indicating that it fed on plants and vegetation.