Biology:Asthenoceras
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Short description: Genus of molluscs (fossil)
Asthenoceras | |
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | †Ammonoidea |
Order: | †Ammonitida |
Family: | †Sonniniidae |
Subfamily: | †Witchelliinae |
Genus: | †Asthenoceras Buckman, 1899 |
Species[2] | |
See text |
Asthenoceras is a genus of ammonoid from the Middle Jurassic (Lower Bajocian) with dwarfish, evolute, smooth, compressed, discoidal, strongly keeled shell. Asthenoceras belongs to the Sonniniidae and may be a subgenus of the Lower Jurassic (Upper Toarcian) Grammoceras.
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 2016-02-25. https://web.archive.org/web/20160225225905/http://strata.geology.wisc.edu/jack/showgenera.php?taxon=231&rank=class. Retrieved 2017-10-18.
- ↑ "Paleobiology Database - Asthenoceras". http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_no=14588&is_real_user=1. Retrieved 2017-10-19.
- 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.
Wikidata ☰ Q3727913 entry
![]() | Original source: https://en.wikipedia.org/wiki/Asthenoceras.
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