Invertebrate paleontology is concerned with the evolution and paleobiology of animals lacking backbones. All macro-invertebrate teams having a significant fossil record are examined. The discipline of invertebrate paleontology advanced from the examine of biology and geology within the late 18th century. A lot of the gathering contains Paleozoic age specimens from Oklahoma and surrounding states, with important material from Alaska.
Benedum Corridor of Geology consists of the type specimen of a Pennsylvanian Age giant eurypterid trackway from Elk County, Pennsylvania, Pennsylvanian Age marine fossils from the regional fossil sites of the Ames Limestone and Brush Creek Limestone, and Mississippian Age brachiopods from Missouri.
Presently, the gathering is strongest in specimens from the Cincinnatian Sequence and contains more than 66,000 specimen lots, of which over 60,000 are paper catalogued. The fossils are in the Arnheim, Waynesville, Liberty and Whitewater Formations of the Richmondian Stage in the Cincinnatian Sequence of the Ordovician System.
The yr earlier than Raymond grew to become curator, the Baron de Bayet assortment of 130,000 fossils arrived from Belgium. These specimens have been used for research by paleontologists for over 120 years. Analysis in invertebrate paleontology has gone by means of two phases at Michigan.
Raymond carried out some of the earliest subject collecting and research of vertebrates and invertebrate fossils in western Pennsylvania. As a result of vertebrates and invertebrates share a standard ancestor, they might all be grouped in one massive tree with all of these ancestors, including the ancestor itself.