Kingdom Animalia Class Cephalopoda Order Ammonitida Rank Genus | Phylum Mollusca Subclass Ammonoidea Superfamily Haplocerataceae | |
Petitclercia is a genus of molluscs from the strigoceratid subfamily Disticocratinae which are included in the ammonitid superfamily Haplocerataceae. Petitclercia, named by Rollier, 1909, is found in the upper Middled Jurassic (Callovian) of France.
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.
References
Petitclercia Wikipedia(Text) CC BY-SA