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When elasmo.com first went on-line (1996), there was much less reference material available than today, and many of the more important faunas remained unpublished. This website's objective was to better share details of North American shark faunas. More recent additions to this list have become more sophisticated in the scope and content. Certain older pages (i.e. Smoky Hill chalk) need significant updating, while others have been kept current. Creating new faunal pages is now very time-consuming and will be added at a much slower rate than in the past.
| Fauna | Added | Updated | Scope |
| Hosta Tongue |
Aug 2011 | | Santonian, New Mexico |
| L. Cret. Miss. |
Jul 2010 | Aug 2011 | Late Cretaceous, Mississippi |
| Kemp Clay |
Jan 2010 | Aug 2011 | Maastrichtian Texas |
| Belgrade Fm. |
Sep 2009 | | Late Oligocene, North Carolina |
| Castle Hayne |
May 2007 | | Middle Eocene of North Carolina |
| Aquia |
Jul 2002 | May 2007 | Late Paleocene of Maryland |
| Nanjemoy |
May 1999 | May 2007 | Early Eocene of Virginia |
| Peedee |
Apr 1999 | | Late Cretaceous, Lake Waccamaw, NC |
| Tropic Shale |
Feb 1999 | | Late Cretaceous, Utah |
| Black Creek |
Feb 1999 | Aug 2011 | Late Cretaceous, North Carolina |
| Smoky Hill |
Feb 1999 | | Late Cretaceous, Kansas |
| Sharktooth Hill |
Apr 1998 | May 2008 | Middle Miocene, California |
| Lee Creek |
Jul 1996 | Feb 2005 | Mio-Pliocene, North Carolina |
| Shark I |
Jul 1996 | Jun 2008 | non-carcharhiniformes |
| Shark II |
Jul 1996 | Dec 2008 | carcharhiniformes |
| Rays |
Jul 1996 | Feb 2007 | batoids |
| Teleosts |
Feb 2005 | Oct 2006 | bony fishes |
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