Mcqueenoceras

Mcqueenoceras was an ancient group of sea creatures that lived long ago during a time called the Floian epoch of the early Ordovician period. It belonged to a family of animals known as endocerids, which were similar to modern nautiloids. Mcqueenoceras looked much like another creature called [Clitendoceras](/wiki/Clitendoceras), but it had some special features. For example, the inside of its shell, called the siphuncle, was thicker on one side and thinner on the other. Also, the lines marking where its shell sections joined would bend back at the edges.

The main species of Mcqueenoceras is called Mcqueenoceras jeffersonense, and it was first described by scientists E.O. Ulrich and A.F. Foerste in 1935. Fossils of this creature have been found in places like Missouri and New York. Later, in 1956, another scientist named Rousseau H. Flower added two more species to this group, called M. cariniferum and M. ventrale, which were discovered in Maryland. These fossils help us learn about life in the ancient seas.