Assertion: tuatara's skull | /r/SimilarTo | primitive anapsid pattern
Facets:
Source sentences:
text: In a few forms, such as the sea turtles, the skull seems to resemble the primitive anapsid pattern, but in many others certain bones appear to have been "eaten away" or emarginated from behind to produce a kind of temporal opening anatomically different from the one in synapsids, diapsids or euryapsids.