Tragophylloceras sp., Jurassic, FRA
€8.00
Available, delivery time: 1-3 days
Product information "Tragophylloceras sp., Jurassic, FRA"
The genus Tragophylloceras consists of relatively small forms that very rarely exceed 10 centimeters. However, because the genus exhibits dimorphism, macroforms can reach up to 22 centimeters (e.g., Tragophylloceras numismale). As a typical representative of the Phylloceratoidea, it possesses an open umbilicus. Its phragmocon is involute with N = 0.13–0.22. The growth lines are sigmoid. The ribbing is usually very indistinct and may even be entirely absent. It is particularly recognizable as low folds on the venter; on the habit chamber, it is only roughly indicated. The whorl cross-section is compressed with parallel sides, slightly triangular on the venter, and overall subogival.
Age: Jurassic
Locality: Causses Le Clapier ,France
Size: approx. 1,3 - 1 cm
The colors in the photos may differ slightly from the original for technical reasons.
The photo serves as an example. You will receive a specimen of comparable quality.
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