Scientific Classification
| Kingdom: Animalia |
| Phylum: Mollusca |
| Class: Bivalvia |
| Order: Cardiida |
| Family: Cardiidae |
| Genus: Acrosterigma |
| Species: Acrosterigma dalli (Heilprin, 1887) |
Information
Geological Range
Paleogeographic Distribution
Stratigraphic Occurrences
| Caloosahatchee Formation [Common] |
| Tamiami Formation (Pinecrest Beds) [Uncommon] |
Remarks
Common name: n/a
Synonymy: n/a
Type specimen, locality, and stratum: n/a
Other voucher specimens: n/a
Descriptions:
Original Description (from Heilprin, 1886, p. 131-132):
“Shell ovately elevated, moderately ventricose, with the beaks apical, touching (or nearly so), and directed slightly backwards; ribs about 30 to 33, smooth, moderately elevated, teretely rounded, with narrow, impressed interspaces; the ribs on the posterior slope narrower and more crowded than over the general surface, minutely echinated in part.
Hinge-line narrow, acutely curved, with prominent lateral teeth; a prominent triangular cardinal tooth in each valve. Height, from apex to basal margin, 5.3 inches; length (width), 3.7 inches.”
Measurements: n/a
Other remarks: n/a
References: n/a
Online resources:
Page history:
Some of the content on this page was originally published on the Neogene Atlas of Ancient Life on June 6, 2014. It was developed by Jonathan R. Hendricks and colleagues and migrated here in 2026.
This page was last modified on October 28, 2026 by Jonathan R. Hendricks.
Media
Images
