Atrypa Brachiopod Fossil with Crystallized Lophophore

Check out this picture of an Atrypa (Hall, 1862) brachiopod fossil (note the two elliptical shapes which are feeding tubes or lophophore that have crystallized). The fossil was found in the Genshaw Formation at Alpena, Michigan USA. The creature lived Middle Devonian Period (Erian Stage).

 

Anthonomus defossus? Snout Beetle Fossil

These images show snout beetle or weevil insect fossils of the Order Coleoptera, Family Curculionidae found in the Florissant Formation of Teller County, Colorado, USA. I wonder if this insect was in the Anthonomini weevil tribe in the subfamily Curculioninae and maybe genus Anthonomus (Gemar, 1817) or species Anthonomus defossus (Scudder, 1876).  It dates to the Chadronian Stage (37.2 - 33.9 million years ago) Eocene Epoch of the Paleogene Period. Thanks to Doug for the image. Fossils were uncovered in September 2021. Field of view is 2 mm.

Dicranurus hamatus Trilobite Fossil

On a recent trip to Alpena, Michigan USA with several amateur paleontologists from Louisville and one from Chicago, we visited a local paleontologist Paleo Joe (aka  Joseph Kchodl). This picture is of one of his trilobite fossils from Oklahoma. This fossil is known as Dicranurus hamatus (Conrad, 1841). It was found in the Haragan Formation and existed in the Devonian Period.

 Learn more about Oklahoma trilobites in the Geological Survey Bulletin 123 Trilobites of the Haragan, Bois D'Arc and Frisco Formations (Early Devonian) Arbuckle Mountains Region, Oklahoma by K. S. W. Campbell (1977). Paper can be found at this LINK.