Skip to Main Content
Book Chapter

Carboniferous praecardioid bivalves from the exceptional Buckhorn Asphalt biota of south-central Oklahoma, USA

By
T. E. Yancey
T. E. Yancey
Department of Geology and Geophysics, Texas A&M University, College Station, Texas 77843-3115, USA, (e-mail: tyancey@tamu.edu)
Search for other works by this author on:
M. J. Heaney, III
M. J. Heaney, III
Department of Geology and Geophysics, Texas A&M University, College Station, Texas 77843-3115, USA, (e-mail: tyancey@tamu.edu)
Search for other works by this author on:
Published:
January 01, 2000

Abstract

Unusual Pennsylvanian bivalves recovered from the Buckhorn Asphalt Quarry of south-central Oklahoma are members of the Order Praecardioida, Family Lunulacardiidae. This is the youngest occurrence of praecardioids in North America. These praecardioids have an ontogeny characterized by a veneriform juvenile shell, changing abruptly to an elongate adult shell with sharp carinae, accompanied by strong rotation of the juvenile shell and change in ligament. These shells provide new evidence of dentition and ligament for lunulacardiids and the first documentation of praecardioid shell microstructure. The Buckhorn taxa possess stout hinge teeth, indicating that lunulacardiids are not edentulous. Preserved ligament in multiple growth stages indicates that beaks are prosogyrous and the flattened truncated portion of the shell is posterior. A revised diagnosis of the Lunulacardiidae is presented. New taxa: Buckhornia carteri n. gen., n. sp.

You do not currently have access to this article.

Figures & Tables

Contents

Geological Society, London, Special Publications

The Evolutionary Biology of the Bivalvia

E. M. Harper
E. M. Harper
Cambridge University, UK
Search for other works by this author on:
J. D. Taylor
J. D. Taylor
The Natural History Museum, UK
Search for other works by this author on:
J. A. Crame
J. A. Crame
British Antarctic Survey, UK
Search for other works by this author on:
Geological Society of London
Volume
177
ISBN electronic:
9781862394254
Publication date:
January 01, 2000

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal