Thursday, April 17, 2014

Some new finds from the Kashong Shale

This past spring I hunted among the eroded remnants of the Kashong Shale near Greigsville, NY and found a few interesting fossils.

This is a very narrow Crinoid holdfast that must have grown on a jumble of thin shell material.


It is not uncommon to find pieces of shell hash that have flat bryozoans incoporated in with them. This is a piece of matrix that has a Taeniopora exigua piece on one side...
... and some Sulcoretipora incisurata on the other side.

Lastly I found a portion of a crushed Blastoid that may have been a Nucleocrinus or Devonoblastus.

All the above specimens were found in the Kashong shale member of the Moscow formation which is middle Devonian in age (Givetian stage).

Tuesday, April 15, 2014

Melocrinites sp. crinoid from Germany

This will be the last of the fossils that I received from my friend Nils to be featured for a while. I have a few more Devonian fossils from Germany to feature but I will post them up later. The featured fossil for today is a Melocrinites sp. calyx from the Oos formation (Devonian, Fransian) near Wallersheim, Germany. It's a little rough but you can make out the calyx plates and arm attachment points.

Dorsal surface
 Oral surface

These next photos are of the calyx in profile and turned about 60 degrees counter clockwise between photos.






Thank you to Nils for this specimen!

Sunday, April 13, 2014

Sphaerocrinus geometricus

Another crinoid calyx to show you from Germany. It's a Sphaerocrinus geometricus from the Loogh formation (Devonian, Givetian stage) near Üxheim, Germany. This calyx reminds me a little of the Dolatocrinus sp. calyx, that are found in the Devonian rocks of Michigan, in terms of the plate ornamentation.

Dorsal surface
Oral surface

The next three photos are the calyx rotated approximate 90 degree between photos.



Thanks to Nils for the fossil!

Friday, April 11, 2014

Eucalyptocrinites rosaceus crinoid from Germany

Today I have the calyx of a crinoid called Eucalyptocrinites rosaceus to show you. It comes from the Loogh Formation (Devonian, Givetian stage) near Berndorf, Germany. The calyx is round and squat with a bit or ornamentation. The arms are missing but you can see their attachment points.

Dorsal view
Oral view

These next few photos are the profile view of the calyx rotated about 30 degrees between images.






Thanks to Nils for the specimen

Wednesday, April 9, 2014

Heliolites coral from Germany

Heliolites is an interesting coral that I thought was confined to the Silurian period, So I was surprised when my friend Nils sent me a specimen from the Devonian of Germany in a recent exchange. The specimen below comes from the Junkerberg Formation (Devonian, Eifelian stage) near Rommersheim, Germany.







Previously I've blogged about specimens from the Silurian of Gotland, Sweden and Louisville, Kentucky. A search of the Fossilworks site (formerly Paleodb.org) shows that Heliolites is known up into the middle Devonian in many places around the world. Apparently it went extinct in most of America (except Alaska) but not elsewhere.