Leaf Rolling Weevil Fossil

The image shows a snout beetle or leaf rolling weevil insect fossil of the Order Coleoptera, Family Curculionidae found in the Florissant Formation of Teller County, Colorado, USA. It dates to the Eocene Epoch of the Paleogene Period. Thanks to Doug for the image. I believe field of view is 2 mm.

Lichas boltoni Fossil

 Here is an image of a Silurian Period of a Lichas boltoni (Bigsby, 1825) [it is now known by genus Arctinurus (Castelnau, 1843)].  This illustration was originally in an 1852 James Hall publication of a fossil found in the Rochester Shale of New York.

This image was scanned from plate 17 of Guide to the Geology and Paleontology of Niagara Falls and Vicinity by Amadeus W. Grabau April 1901.

Dactyloidites asteroides Fossil

 

While researching a mystery fossil that looks like flower petal indentations, I came across jellyfish imprints described as medusa. The image above is of a Cambrian aged Dactyloidites asteroides (Fitch, 1850). Image is from Charles D. Walcott (1850-1927) and was re-published as figure 1012 on page 228 A Textbook of Geology Part II Historical Geology by Amadeus W. Grabau (1870-1946).

PDF of book can be found:

https://archive.org/details/textbookofgeolog02grabrich/page/n5/mode/2up