Jump to content

Strigoceratidae

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by ShortDescBot (talk | contribs) at 09:56, 29 April 2021 (ShortDescBot adding short description "Extinct family of molluscs"). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Strigoceratidae
Temporal range: Bajocian
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ammonitida
Superfamily: Haploceratoidea
Family: Strigoceratidae
Buckman, 1924

The Strigoceratidae is a family in the ammonitid superfamily Haploceratoidea, restricted to the lower Middle Jurassic, Bajocian stage, possibly derived from the Hammitoceratidae. The family was established and named by Buckman in 1924.

Description

The shells of the Strigoceratidae are compressed to oxyconic, with a narrow or minute umbilicus and simple or irregularly branched ribbing almost confined to the outer (ventral) half of the whorl sides. The sutures are moderately simple to complex, with a long umbilical lobe bearing a graded series of Auxiliaries.

References