Analysis of Ordovician Brachiopods Within Different Formations

This topic submitted by Jenny, Caroline, Jason, and Kristin (simpleselma@hotmail.com) at 6:53 pm on 9/10/99. Additions were last made on Wednesday, August 9, 2000. Section: Cummins

Do brachiopods differ from formation to formation? We hypothesize that the species of brachiopods we find will demonstrate the evolution of brachiopods from one stage of the Ordovician period to the next. We plan on traveling (without getting lost) to an outcrop in Indiana. (As long as Hays gives us the correct directions.) We will examine slabs of shale by the road side and try to identify which formation (Drakes, Whitewater, Liberty, Waynesville, or Arnheim) they belong to. Then we will examine the brachiopods within each slab and try to characterize which species/types correspond with each formation. Our conclusions will be drawn from this observation to illuminate the evolution of brachiopods during the Ordovician period.


Bibliograpgy:

Feldmann, Rodney M.(1996) FOSSILS OF OHIO. Columbus: Ohio Department of Natural Resources.

Hansen, Michael. (1994, October). GEOFACTS (Files posted on the World Wide Web). Retrieved September 1, 1999 from the World Wide Web:
Ohio Geological Survey Home Page

Larsen, Glen. (1998, January). GEOFACTS (Files posted on the World Wide Web). Retrieved September 9, 1999 from the World Wide Web:
Ohio Geological Survey Home Page

Sepkoski, J. & Miller, A.(1998). Analysing Diversification Through Time. TRENDS IN ECOLOGICAL & EVOLUTION, 13, 158-159.

Benton, M.J.(1998). Analysing Diversification Through Time: Reply to Sepkoski and Miller. TRENDS IN ECOLOGY & EVOLUTION, 13, 201.

Raff, R.A.(1999) Creating the Animal Planet. TRENDS IN ECOLOGY & EVOLUTION, 14, 39.

Hadly, Elizabeth.(1999). Fidelity of Terrestrial Vertebrate Fossils to a Modern Eosystem. PALAEOGEOGRAPHY, PALAEOCLIMATOLOGY, PALAEOECOLOGY, 149, 389-409.

Falls of the Ohio. ANCIENT SHELLS AT THE FALLS OF THE OHIO. (Files posted on the World Wide Web). Retrieved September 9, 1999 form the World Wide Web: Falls of the Ohio Home Page.

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