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Posts treating: "Pedicle valveAnterior"

Sunday, 05 July 2015

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Macropleura macropleura brachiopod from the Kalkberg formation of New York 

Views of the Mahantango [2015-07-05 09:01:00]  recommend  recommend this post  (688 visits) info

 Devonian; DE,US
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If I may paraphrase the song "New York, New York" by Gerard Kenny, Macropleura is a brachiopod so nice, they named it twice! Macropleura macropleura is a large brachiopod and hard to mistake for something else in the Kalkberg formation. I've found similar specimens from the Licking Creek formation of  Virginia but there they were silicified. Despite its large size, I've yet to find any whole, articulated specimens. The specimens below both appear to be pedicle valves. They have thick, [...]

Leptaena analogaeformis brachiopod from Poland 

Views of the Mahantango [2013-05-31 09:01:00]  recommend  recommend this post  (62 visits) info

 Devonian
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A very common brachiopod genera here in the US is Leptanea and it appears to also be common in the Skaly beds of Poland. Below are specimens of Leptaena analogaeformis with both internal and external views available.Pedicle valve AnteriorInterior of Pedicle valveAnterior - Note the slight twisting of the shell. I'm not sure if that is the result of how the shell grew or geologic processes.ProfileAnother view of the interior of the Pedicle valve with the muscle scars.Compare that to the interior [...]
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