My September 2021 trip to Alpena, Michigan USA with several amateur paleontologists from Louisville and Chicago, we visited a local paleontologist Paleo Joe (aka Joseph Kchodl).
This picture is of one of his bryozoan fossils from Middleport, New York USA. This fossil is known as Chilotrypa ostiolata (Hall, 1852). It was found in the Rochester Shale and existed in the Silurian Period.
