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Geobulletin
alpha
News from the Geoblogosphere
by Stratigraphy.net
New from Snet:
Lithologs
, a new tool to create lithological/sedimentological logs online..
Blog post recommendation
Macgeea bathycalyx coral from Germany
I really like this coral fossil of
Macgeea bathycalyx.
It comes from the Nims member of the Junkerberg Formation (Devonian, Eifelian stage) near Rommersheim, Germany. It is an interesting fossil because it looks like a typical rugose coral, with a typical horn shape and cup, but the septae extend on both sides of the cup rather than being confined to the interior.
Macgeea bathycalyx
is a member of the Phillipsastreidae family of rugose corals and is related to
Pachyphyllum sp.
corals such as this
Pachyphyllum woodmani
from the upper Devonian of Iowa.
It's interesting to note that the genera Macgeea is found in the US but moreso in the upper Devonian (Fransian stage) rather than the lower to middle Devonian where this specimen comes from. It may be a transplant species that spread as continents came together in the late Paleozoic era.
Thanks to Nils for this specimen.
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