Definition of Perisphinctidae. Meaning of Perisphinctidae. Synonyms of Perisphinctidae

- Perisphinctidae is a family of Middle and Upper Jur****ic discoidal ammonites in the order Ammonitida. They have a s**** morphology that is mostly evolute...
- Perisphinctidae: Middle and Upper Jur****ic root stock, derived from the Stephanoceratidae (Middle Jur****ic direct derivatives of the Perisphinctidae)...
- class: Cephalopoda Subclass: †Ammonoidea Order: †Ammonitida Family: †Perisphinctidae Subfamily: †Perisphinctinae Genus: †Alligaticeras Buckman, 1923...
- outer whorls become smooth and sutures tend to resemble those of the Perisphinctidae. The family includes three genera, Megalytoceras, and Metrolytoceras...
- is an extinct genus of ammonoid cephalopod belonging to the family Perisphinctidae. Related genera in the Virgatitinae include Acuticostites and Zaraiskites...
- Flabellisphinctes is included in the subfamily Grossouviinae which is part of the Perisphinctidae. The s**** is around 5 cm (abt. 2in) in diameter, with close spaced...
- Berriasian of the Cretaceous. The family is thought to derive from Perisphinctidae. "Paleobiology Database - Himalayitidae". Retrieved 2017-10-19. Ammonites...
- tubercles. The Aspidoceratidae are thought to be derived from the Perisphinctidae and have been subdivided into three subfamilies, the Aspidoceratinae...
- superfamily Perisphinctoidea. Previously Ataxioceras was ****igned to the Perisphinctidae but has now been placed in the Ataxioceratidae for which it is the...
- class: Cephalopoda Subclass: †Ammonoidea Order: †Ammonitida Family: †Perisphinctidae Subfamily: †Perisphinctinae Genus: †Perisphinctes Waagen, 1869 Type...