Engorthoceratidae

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Engorthoceratidae
Temporal range: Devonian
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order:† Orthocerida
Family:† Engorthoceratidae
Flower, 1962
Genus:† Engorthoceras
Flower, 1962

Engorthoceratidae is a small family of Devonian orthocerids and a class of cephalopod found in eastern North America (Ohio and Indiana), containing only the genus Engorthoceras. [1] [2]

Contents

Taxonomy

Engorthoceratidae was named in 1962 by Rousseau Flower to contain the genus Engorthoceras, also named by Flower (1962), and assigned to the Michelinceratida. The genotype is Orthoceras worthoni. [1]

Morphology

Engorthoceras produced straight conical shells with a subcircular cross section and a small completely marginal siphuncle. [1] The conical shell is suggestive of belemnite phragmocones and of its possible ancestry to Eobelemites . Nothing is known of the animal itself.

References

  1. 1 2 3 R. H. Flower. (1962). "Notes on the Michelinoceratida". State Bureau of Mines and Mineral Resources, New Mexico Institute of Mining and Technology, Memoir 10, Part II
  2. ↑ Engorthoceratidae PaleoBiology Database


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