Petitclercia
| Petitclercia Temporal range:
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|---|---|
| Scientific classification | |
| Kingdom: | |
| Phylum: | Mollusca |
| Class: | |
| Subclass: | |
| Order: | |
| Superfamily: | Haplocerataceae |
| Family: | |
| Genus: | Petitclercia
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Petitclercia is a genus of molluscs from the
Haplocerataceae
. Petitclercia, named by Rollier, 1909.
The shell of Petitclercia is involute, very compressed, with a sharp umbilical angle and sharp fastigate venter. Spath (1928)speculated that Petitclercia is perhaps "an involute development of Chanasia", another of the Distichoceratinae.
Distribution
Only found in the upper Middle Jurassic (Callovian) of Vendée, France.[2]
References
- ^ Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2017-10-18.
- ^ Paleobiology Database - Petitclercia. 2017-10-19.
- Treatise on Invertebrate Paleontology, Part L, Ammonoidea; (L279), Geological Society of America and Univ of Kansas press, 1964
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