Tropitoidea, formerly Tropitaceae, is an extinct
superfamily of
ammonite cephalopod
A cephalopod is any member of the molluscan class Cephalopoda (Greek plural , ; "head-feet") such as a squid, octopus, cuttlefish, or nautilus. These exclusively marine animals are characterized by bilateral body symmetry, a prominent head ...
s in the
order Ceratitida
Ceratitida is an order that contains almost all ammonoid cephalopod genera from the Triassic as well as ancestral forms from the Upper Permian, the exception being the phylloceratids which gave rise to the great diversity of post Triassic ammoni ...
, containing the following families:
*
Didymitidae
*
Episculitidae
*
Haloritidae
The Haloritidae is a family of subglobular, involute, Triassic ammonoids belonging to the ceratitid superfamily Tropitoidea. Their shells may be smooth or may have ribs that cross or are interrupted on the venter, and may have nodes. Keels and ve ...
*
Juvavitidae
*
Parathisbitidae
*
Thisbitidae
*
Tropiceltidae
*
Tropiceltitidae
*
Tropitidae
References
The Paleobiology DatabaseAccessed on 1/14/12
Ceratitida superfamilies
{{Ceratitida-stub