Phacelocrinus longidactylus Crinoid Fossil

 

Images are of a Phacelocrinus longidactylus (McChesney, 1860) crinoid calyx fossil the dark mass on the calyx is a Platyceras snail fossil. It was found in the Glen Dean Formation of Grayson County, Kentucky USA. The fossil dates to the Mississippian Period. Thanks to Kenny for the images.

 

Dasciocrinus Crinoid Calyx Fossil

 

Images are of a Dasciocrinus (Kirk, 1939) crinoid calyx fossil. It was found in the Glen Dean Formation of Grayson County, Kentucky USA. The fossil dates to the Mississippian Period. Thanks to Kenny for the images.

Modern Brachiopod Dallinella occidentalis

This picture is of a Dallinella occidentalis (Dall, 1871) modern brachiopod. It was found in Minnesota USA. I cannot find this specimen in their database. USNM PAL 95850 listed as Terebratalia occidentalis (Dall, 1871) is there as a holotype though.

The picture was taken in June 2023 on the first floor of the Smithsonian Museum of Natural History in Washington D.C. USA.

 This brachiopod looks very similar to the Terebratalia transversa (Sowerby, 1846) that I posted about in September 2009.

https://louisvillefossils.blogspot.com/2009/09/modern-day-brachiopod-lacqueas.html