Misplaced Pages

Perisphinctoidea

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
(Redirected from Perisphinctaceae) Extinct superfamily of ammonites

Perisphinctoidea
Temporal range: Bajocian–Barremian PreꞒ Ꞓ O S D C P T J K Pg N
Idoceras balderum
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: †Ammonoidea
Order: †Ammonitida
Suborder: †Ammonitina
Superfamily: †Perisphinctoidea
Steinmann, 1890
Families

See text

Synonyms
  • Perisphinctaceae

Perisphinctoidea, formerly Perisphinctaceae, is a superfamily of Middle Jurassic (Bajocian) to Lower Cretaceous (Barremian) ammonites, commonly with evolute shells with strong ribbing that typically divides about mid flank before crossing the venter.

Classification

Some 16 families have been recognized in the Perisphinctoidea. The following is based on Donovan et al. 1981 with modification from the Treatise on Invertebrate Paleontology, Part L (1957)

(Middle Jurassic direct derivatives of the Perisphinctidae)

(early Upper Jurassic (Oxfordian) derivatives of Perisphinctidae)

(mid Upper Jurassic (Kimmeridgian) derivatives of the Ataxioceratidae)

(late Upper Jurassic (Tithonian) derivatives of Perisphinctidae)

(Lower Cretaceous Perisphinctoidea (Berriasan - Hauterivien)

  • Berriasellidae (derived from Ataxioceratidae)(now considered a subfamily of Neocomitidae)
  • Polytichitidae (derived from Dorsoplanitidae)
  • Neocomitidae (derived from Berriasellidae)(now placed in the superfamily Endemoceratoidea)
  • Oosterellidae (Hauterivian derivative of the Neocomitidae)

References

  1. ^ Arkell, W.J.; Kummel, B.; Wright, C.W. (1957). Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L, Mollusca 4. Lawrence, Kansas: Geological Society of America and University of Kansas Press.
  2. Donovan, Callomon and Howarth 1981 Classification of the Jurassic Ammonitina; Systematics Association. "Archived copy" (PDF). Archived from the original (PDF) on 2011-07-16. Retrieved 2010-11-20.{{cite web}}: CS1 maint: archived copy as title (link)
Taxon identifiers
Perisphinctoidea


Stub icon

This Ammonitina-related article is a stub. You can help Misplaced Pages by expanding it.

Categories: