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Showing results for tags 'anastrophia grossa'.
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Brachiopod Anastrophia grossa Devonian Oklahoma
JamieLynn posted a gallery image in Member Collections
From the album: Oklahoma Paleozoic Fossil Finds
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From the album: MY FOSSIL Collection - Dpaul7
Anastrophia grossa Brachiopod Bois d'Arc Formation (overlays the Haragan) of Oklahoma TIME PERIOD: Lower Devonian (359-383 Million Years Ago) Data: The genus Anastrophia first becomes widely seen in the Silurian and it extends into the lower Devonian before disappearing from the fossil record. The specimens below are Anastrophia grossa from the Bois d'Arc formation of Oklahoma. The shell is subpentagonal in outline with coarse costae present on both valves. There is a shallow sulcus on the pedicle valve that becomes much more expressed at the anterior margin forming a "u" shape. The corresponding fold is also shallow. Both valves are convex with the brachial valve being more so than the pedicle valve. Kingdom: Animalia Phylum: Brachiopoda Class: Rhynchonellata Order: †Pentamerida Family: †Parastrophinidae Genus: †Anastrophia Species: †grossa-
- anastrophia grossa
- bois darc formation
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(and 2 more)
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From the album: MY FOSSIL Collection - Dpaul7
Anastrophia grossa Brachiopod Bois d'Arc Formation (overlays the Haragan) of Oklahoma TIME PERIOD: Lower Devonian (359-383 Million Years Ago) Data: The genus Anastrophia first becomes widely seen in the Silurian and it extends into the lower Devonian before disappearing from the fossil record. The specimens below are Anastrophia grossa from the Bois d'Arc formation of Oklahoma. The shell is subpentagonal in outline with coarse costae present on both valves. There is a shallow sulcus on the pedicle valve that becomes much more expressed at the anterior margin forming a "u" shape. The corresponding fold is also shallow. Both valves are convex with the brachial valve being more so than the pedicle valve. Kingdom: Animalia Phylum: Brachiopoda Class: Rhynchonellata Order: †Pentamerida Family: †Parastrophinidae Genus: †Anastrophia Species: †grossa-
- anastrophia grossa
- bois darc formation
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(and 2 more)
Tagged with: