Edmontonia rugosidens Dinosaur Fossil

The image of this dinosaur fossil was on display at the American Museum of Natural History (AMNH) in New York City in July 2018. This ankylosaur is called Edmontonia rugosidens. It was found by Charles Hazelius Sternberg (1850-1943) in 1917 at Red Deer River in Alberta Canada. The fossil dates to the late Cretaceous Period (75 million years ago).

Lepidodiscus alleganius Edrioasteroid Fossil

 

This scan is from the book is called New York State Museum Bulletin 49 December 1901 Paleontologic Papers 2. It contains a number of papers including one called New Agelacrinites by John Mason Clarke (1857-1925). He named this new species Lepidodiscus alleganius (Clarke, 1901). Fossil like this are found in the Chemung sandstones at and near Alfred, Belvidere and Wellsville New York, USA, and 2 miles south of Sabinville, Tioga County Pennsylvania, USA. This fossil dates to the Devonian Period.

The fossil was re-evaluated in the paper The Classification of the Edrioasteroidea by R.S. Bassler (1878-1961) and its genus changed to Cooperidiscus. This paper was published in Smithsonian Miscellaneous Collections Volume 93, Number 8 (April 4, 1935).

Brannerion Fish Fossil

This fish fossil was on display at the American Museum of Natural History (AMNH) in New York City in July 2018. The specimen was named Brannerion sp. (Jordan, 1920). It was found at Chapada do Araripe, Ceará, Brazil and dates to the middle Cretaceous Period (110 million years ago). Accession number is AMNH 11892.

Genus was named for American geologist John Casper Branner (1850-1922). David Starr Jordan (1851-1931) named this genus in a paper New Genera of Fossil Fishes from Brazil in the Proceedings of The Academy of Natural Sciences of Philadelphia Volume LXXI, 1920, pages 208-210.

Learn more about the museum at https://www.amnh.org/