References
Ausich, W. I., and Messing, C.G., 1998. Crinoidea [online]. Available from: http://tolweb.org/tree?group=Crinoidea&contgroup=Echinodermata [Accessed 28 November 2005].
Bat Conservation and Management Inc., 2005. The bats of Pennsylvania [online]. Available from http://www.batmanagement.com/Batcentral/batspecs.html [Accessed 28 November 2005].
Bat Zone, 2005. Organization for bat conservation [online]. Bat zone at Cranbrook Institute of Science, Bloomfield Hills, MI. http://www.batconservation.org/content/meetourbats/meetourbats.htm [Accessed 28 November 2005].
Christoperson, R.W., 2003. Geosystems an introduction to physical geography: New Jersey, Pearson Education, Inc., 660 p.
Cortland University, 2005. Gastropods and cephalods and other mollusks [online]. Available from: http://paleo.cortland.edu/tutorial/Ceph&Gast/gastropods.htm [Accessed 28 November 2005].
Ohio Department of Natural Resources, 2003. Life history notes: little brown bat myotis lucifugus [online]. Available from: http://www.dnr.state.oh.us/wildlife/resources/wildnotes/pub371.htm [Accessed 28 November 2005].
Pisarowicz, J., 2005. Speleothems [online]. Available from: http://www.nps.gov/wica/Speleothems.htm [Accessed 28 November 2005].
University of California Berkley, 2005. Life history and ecology [online]. Available from: http://www.ucmp.berkeley.edu/arthropoda/trilobita/trilobitalh.html [Accessed 28 November 2005].
Wisconsin Department of Natural Resources, 2004. Bats [online]. Available from: http://www.dnr.state.wi.us/org/land/er/publications/bats/wibats.htm [Accessed 28 November 2005].
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