Paradoxidian
/ˌparədɒkˈsɪdɪən/Palaeontology
adjective
Of or relating to the genus Paradoxides or the family Paroxididae of trilobites of Middle Cambrian age; characterized by the occurrence of fossils of such trilobites.
Origin
Late 19th century; earliest use found in Archibald Geikie (1835–1924), geologist and historian. From scientific Latin Paradoxides, genus name + -ian.