Halysites catenularia Chain Coral Fossil

This picture is of a Halysites catenularia (Linnaeus, 1767) chain coral fossil. It existed during the Silurian period. The fossil was found in Drummond Island, Michigan, USA. Fossil was on display at the Natural History Museum Vienna (Naturhistorisches Museum Wien) on August 2024.

A fossil like this can be found in the Louisville, Kentucky USA area as well. Here is one on display at a Paris museum. https://louisvillefossils.blogspot.com/2022/11/halysites-catenularia-chain-coral-fossil.html

Heliolites murchisoni Coral Fossil

This picture is of a Heliolites murchisoni (Milne Edwards & Haime 1851) coral fossil. It existed during the Silurian period. The fossil was found in Dudley, England. Fossil was on display at the Natural History Museum Vienna (Naturhistorisches Museum Wien) on August 2024.

Alpena Michigan Microfossils

 

My cousin screened through a lot of micro material I brought back from Alpena Michigan USA in October 2021. It was found in the Potter Farm Formation and dates to Middle Devonian Period (Erian Age). 

The brachiopod fossil in boxes 110 & 117, 76-77, and another in 109 appear to be a Strophondonta crassa (Imbrie, 1959).

Rectangles 107, 108, and 115 appear to be Aulopora coral fossils with some that had grown on a branching bryozoan.

Cornulites appear to be in boxes 60 and 61.

A blastoid in cells 62, 63 & 66 could be Heteroschisma subtruncatum.

Cell 22 is a fish tooth fossil.

Fossil in rectangle 69 is some sort of bone fossil.

Thanks to Kenny for image and preparing all those fossils. Very nice work!