Pedicle valve
Compare this to specimens I've found in the Centerfield mbr. of the Ludlowville Formation of New York and the Mahantango Formation of Pennsylvania.
Friday, September 12, 2014
Devonochonetes coronatus Brachiopod from the Silica Shale
Devonochonetes coronatus is a species that I know well from Givetian aged deposits in Pennsylvania and New York. Below is a specimen from the Silica Shale (Devonian, Givetian stage) near Sylvania, OH. It follows the form that I have used in the past to ID similar shells: Large size, rectangular shape, 1 valve covex while the other is concave. The specimen below has partially been replaced with Pyrite (darker areas) which is why it has a mottled appearance.
Pedicle valve
Anterior
Brachial valve
Posterior
Profile
Compare this to specimens I've found in the Centerfield mbr. of the Ludlowville Formation of New York and the Mahantango Formation of Pennsylvania.
Pedicle valve
Compare this to specimens I've found in the Centerfield mbr. of the Ludlowville Formation of New York and the Mahantango Formation of Pennsylvania.
No comments:
Post a Comment