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Showing results for tags 'rhynchonellid'.
Found 8 results
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The Devonian period is known as "The Age of Fish", but could also be known as "The Age of Brachiopods." In the Early / Lower Devonian, brachiopods reached the height of their diversity towards its end in the Emsian. We see the ancestral groups occurring, lingulids, craniids, orthids, protorthids, pentamerids, rhynchonellids and strophomenids, as well as the later successful groups we have seen before such as atrypids, athyrids and orthotetids, plus the rise of spiriferids, spiriferinids and productids and the beginning of the terebratulids. By the end of the Devonian , several of these g
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- pentremitidea archiaci
- cordillera cantabrica
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From the album: Misha's Silurian
Stegerhynchus sp.? Middle Siluran Waldron Shale Waldron Indiana-
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- waldron shale
- silurian
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From the album: Misha's Silurian
Stegerhynchus neglecta Middle Siluran Waldron Shale Waldron Indiana-
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- pyrite
- brachiopod
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Hoooooooooooorrrrrrrrrrrraaaaaaayyyyyyyyyyy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Here we are at last, into Adam's Silurian. Thanks for looking. First up is the Lower Silurian or Llandovery and I begin with a problem. I posted this one incorrectly in Adam's Ordovician as it had got it's label muddled up with an Ordovician Favosites I had that has vanished in the move here, but is being replaced by kind forum member @Herb Anyway, this, I remember now I've found the correct label, is from the greenish Browgill Formation, part of the Stockdale Group from a cutting near Skelg
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- leptostophiidae
- eostrophodonta mullochensis
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The thread http://www.thefossilforum.com/index.php?/topic/84678-adams-silurian/ was getting rather enormous, so I have decided to leave that one to deal with the Llandovery and Wenlock and put my specimens from the Late / Upper Silurian here, though I don't have a great deal of material from the Ludlow and Pridoli yet. However, I do still have some jolly nice specimens to show off here. Here are my other collection threads for the Cambrian and Ordovician ; http://www.thefossilforum.com/index.php?/topic/78887-adams-cambrian/&tab=comments#comment-832018 and : http://www.
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- beyrichienkalk
- decatur county
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Rhynchonellid brachiopod from the Kalkberg Formation
Nautiloid posted a gallery image in Members Gallery
From the album: Lower Devonian Helderberg Group in Eastern NY
Ancillotoechia acutiplicata Lower Devonian Helderberg Gr. Kalkberg Fm. Rickard Hill Roadcut Schoharie, New York Collected 5/31/20 -
Fossil hunting in the shed like many of us - I thought I'd lost this nice globular rhynchonellid in a house move years ago. From the top Campanian/bottom Maastrichtian Chalk of Norfolk, UK. I think it's Cretirhynchia sp.
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Brachiopods, perhaps rhynchonellids most of all, are notoriously hard to identify without their internal features exposed. However, if you know the formation and rough location and have faunal lists it can be possible. Rhynchonella ainsliei, for example, has 26-34 costae with 5-7 of these appearing on the fold. This specimen has 30 and 5 respectively and is the only species that has so many found in this formation. It also has the correct shape and size to support the match.
