Definition of Perisphinctoid. Meaning of Perisphinctoid. Synonyms of Perisphinctoid

- Perisphinctoidea, formerly Perisphinctaceae, is a superfamily of Middle Jur****ic (Bajocian) to Lower Cretaceous (Barremian) ammonites, commonly with evolute...
- Durotrigensia is a genus of ammonites (Ammonitida) in the perisphinctoid family Parkinsoniidae. Durotrigensia is sometimes considered a subgenus of Parkinsonia...
- Involuticeras is a perisphinctoid ammonite belonging to the Aulacostephanininae from the Upper Jur****ic of Europe and possibly Mexico. The s**** is involute...
- Pseudopeltoceras is a genus of perisphinctoid ammonites belonging to the family Perisphinctidae. These fast-moving n****nic carnivores lived during the...
- Frenguelliceras is an ammonite genus from the Lower Cretaceous included in the perisphinctoid family Neocomitidae named by Leanza in 1945. The type species, F. magister...
- Pachyceras is a genus of perisphinctoid ammonites from the Middle Jur****ic, upper Callovian stage, and is the type genus for the family Pachyceratidae...
- Perisphinctoidea which gave rise directly or indirectly to the other perisphinctoid families. The Treatise on Invertebrate Paleontology (Part L, 1957) includes...
- Berriasellinae is a subfamily of very late Jur****ic and very early Cretaceous perisphinctoid ammonites in the family Neocomitidae. Berriasellinae comprises generally...
- Late Jur****ic (late Tithonian)  Bulgaria  France  Spain A himalayitid perisphinctoid. The type species is Boughdiriella chouetensis. Breskovskiceras bangilae...
- Jur****ic (Tithonian)  Algeria  France  Morocco  Spain A himalayitid perisphinctoid. A new genus for "Himalayites" (?Corongoceras) rhodanicus Mazenot (1939);...