mosasauroid
/ˌməʊsəˈsɔːrɔɪd/Palaeontology
adjective
Resembling or of the nature of a mosasaur; of or relating to the group which includes the mosasaurs.
noun
A mosasauroid reptile; a marine reptile of the group including the mosasaurs and closely related forms.
Origin
Mid 19th century; earliest use found in Richard Owen (1804–1892), comparative anatomist and palaeontologist. From Mosasaurus + -oid.