Assertion: plesiosaur | /r/HasProperty | huevelmans
Facets:
Source sentences:
text: All or part of the tail (especially the lower half which lacks vertebral support) and/or the dorsal fin may also slough away before the better supported pectoral and pelvic fins, creating a form that superficially resembles a plesiosaur (Huevelmans 1968; Burton & Burton 1969; Cohen 1982; Bright 1989 Ellis 1989).