Biology:Distichoceras
From HandWiki
Short description: Extinct family of molluscs
Distichoceras | |
---|---|
![]() | |
Distichoceras zeissi, described by Nicolas Théobald, Scientific Annals of the University of Besançon, 2nd series, Géologie 8 (1958) p. 3-7 | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | †Ammonoidea |
Order: | †Ammonitida |
Family: | †Oppeliidae |
Subfamily: | †Distichoceratinae |
Genus: | †Distichoceras Munier-Chalmas, 1892 |
Species | |
see text |
Distichoceras is a member of the Haploceratacean family, Oppeliidae, and type genus for the subfamily Distichoceratinae, found in upper Middle and lower Upper Jurassic sediments in Europe,[2] Algeria, India, and Madagascar. The shell is essentially evolute and compressed with the outer flanks converging on a narrow, keeled venter; inner flanks which may be feebly ribbed, are separated from outer by a shallow spiral groove or band. Ribs on outer flanks end on or are looped to tall clavi (elongate tubercles or nodes) that line the venter, standing above the keel.
References
- ↑ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Cephalopoda entry)". Bulletins of American Paleontology 363: 1–560. Archived from the original on 2008-05-07. https://web.archive.org/web/20080507014300/http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=231&rank=class. Retrieved 2017-10-18.
- ↑ "Paleobiology Database - Distichoceras". http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_no=14789&is_real_user=1. Retrieved 2017-10-19.
- Arkell et al., 1957. Mesozoic Ammonoidea, Treatise on Invertebrate Paleontology Part L. Geological Soc. of America and Univ Kansas Press. p. L279.
Wikidata ☰ Q5282939 entry
![]() | Original source: https://en.wikipedia.org/wiki/Distichoceras.
Read more |