Scientific Classification
| Kingdom: Animalia |
| Phylum: Mollusca |
| Class: Bivalvia |
| Order: Cardiidia |
| Family: Grammysiidae |
| Genus: Grammysia |
| Species: Grammysia bisulcata Conrad, 1838 |
Information
Geological Range
Paleogeographic Distribution
Stratigraphic Occurrences
| Traverse Group |
| Silica Formation |
| Hamilton Group |
| Marcellus Formation |
| Ludlowville Formation |
| Moscow Formation |
References
Kesling, Robert, 1975 (reprinted 2012), Strata and Megafossils of the Middle Devonian Silica Formation
Description
Remarks
From Wilson (2014, p. 155): “Medium-sized to large ovoid shell, with broadly curved ventral margin, with contraction in the center. A strong fold and furrow extending down from the beak of each valve is characteristic of this species. Surface marked with fine concentric growth lines, in some portions aggregated together.” Size 50-70 mm.
Online Resources
Global Biodiversity Information Facility
Media
Images
3D Models
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