Sinutropis
Sinutropis is a genus of fossil sea snails, extinct euomphalid archaeogastropods from the Upper Silurian.
Sinutropis Temporal range: Upper Silurian | |
---|---|
Scientific classification | |
Kingdom: | |
Phylum: | |
Class: | |
Superfamily: | |
Family: | |
Genus: | †Sinutropis |
Type species | |
† Sinutropis esthetica Perner, 1903 |
Description
The shell has rounded whorls and a deep rounded sinus on the upper lip of the aperture in place of the typical exhalent angulation of most related genera. Otherwise the shell is not obviously ornamented.
Species
According to the Paleobiology Database, the following species are included in this genus:
- Sinutropis esthetica Perner, 1903[2]
- Sinutropis interrumpens Perner, 1903[2]
- Sinutropis spiralis Rohr, 1988[2]
- Sinutropis tenera Perner, 1903[2]
gollark: English is very ambiguous and bad.
gollark: Thus, "random nitpicking".
gollark: Oh, I'm randomly nitpicking.
gollark: It's 70%, and that assumes that the chance of each protest in a location being violent is independent, which is not true.
gollark: I have no idea about *that*, but it's not valid to say "12 protests in your area → guaranteed (i.e. 100% or nearly) chance of one or more being violent".
References
- Perner J. (1903). Gastéropodes, Tome 1: Patellidae et Bellerophontidae 1-164.
- Paleobiology Database: Sinutropis
Further reading
- Brooks Knight J. et al (1960). Systematic Descriptions. Treatise on Invertebrate Paleontology Part I Mollusca 1. Geological Society of America and University of Kansas Press.
- D. M. Rohr D. M. (1988). "Upper Ordovician gastropods from the Seward Peninsula, Alaska". Journal of Paleontology 62(4): 551-566. JSTOR.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.