Glans

paleontology
verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Share
Share to social media
URL
https://www.britannica.com/animal/Glans
Feedback
Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login).
Thank you for your feedback

Our editors will review what you’ve submitted and determine whether to revise the article.

External Websites
Related Topics:
bivalve
Miocene Epoch

Glans, genus of small pelecypods (clams) especially characteristic of the Miocene Epoch (between 23.7 and 5.3 million years ago). The ornamentation of the shell includes prominent ribbing that extends from the apex to the broadly expanding margin. The ribs are broken up into a nodose pattern by fine lines, perpendicular to their axis of growth. Internally, the margin of the shell has a denticulate pattern formed by alternating ridges and troughs.