Carcharodon (Isurus) hastalis

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    An Extra Large, TOP QUALITY, 3" Carcharodon (Isurus) hastalis tooth with an excellent blue & tan colored crown. A March Fossil of the Month. This is a natural matrix specimen sitting with many whale bones in the original Round Mountain Silt matrix block. The large whale bone at base is 5-3/4" x 3". Plus there are four more whale bones and a shark vertebra exposed in this matrix block. This is a 100% natural matrix piece - nothing added or glued. 100% natural. The root is very well preserved with a nice brown color. Very clean crown. Excellent overall preservation. A fantastic large, quality Mako tooth from the Ernst West quarry which produced the finest teeth with exceptional preservation, high quality, and great color. No repair or restoration. Authenticity guaranteed. A very special display piece.

    ST001      SIZE: 2-3/4"      Matrix block size = 6" x 5.5" x 3" height

    Note - Adding 20 Sharktooth Hill Hastalis teeth in March 2021.    Link to STH Hastalis teeth.

    This catalog contains quality large teeth from the Big-tooth or Broad-tooth “Mako” shark are noted for their wide, unserrrated triangular crowns and large  rectangular roots. These teeth exhibit gray, blue, black, tan, or green colored crowns with gray to black roots. They are very showy, making them an excellent addition to your Mako shark tooth collection. These are top quality Mako teeth from So. Carolina. No repair in this group! There are Miocene age, Hawthorne Formation teeth from coastal South Carolina.  

    What’s in a name? For the fifty years, Isurus hastalis was known to me and others as the big Mako shark tooth that collectors sought from Miocene – Pliocene deposits. Everyone wanted to find a big Mako tooth. In 2001, Purdy (Smithsonsian) resurrected Isurus xiphodon for the broad-form Mako teeth at Lee Creek. It made sense, but now it is not considered a valid species. In 1964, Glikman proposed the Cosmopolitodus genus for the "hastalis" shark as Isurus hastalis was related to the Great White shark rather than the Mako. This convention was not adopted in the scientific community until the last decade; particularly with the naming of the Carcharodon hubbelli, the Great White transition tooth (late Miocene). There is also a push to rename the shark formerly known as Isurus hastalis to Carcharodon hastalis recognizing that it is an early form of the Great White shark. Ok, Isurus hastalis and Isurus xiphodon names going away, but the future genus name for "hastlis" appears to be unsettled. What do we call this shark if it is not a Mako?

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