Big-tooth Mako shark (Broad form) - aka Isurus xiphodon - Cosmopolitodus hastalis

This catalog contains quality large teeth from the Big-tooth or Broad-tooth “Mako” shark (Broad form) are noted for their wide, unserrrated triangular crowns and large  rectangular roots. These teeth exhibit tan, orange, pink, gray or blue colored crowns with tan to mahogany-red roots. They are very showy, making them an excellent addition to your Mako shark tooth collection. These are top quality Mako teeth from Chile. No repair in this group!

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 name for "hastlis" appears to be unsettled. What do we call this shark if it is not a Mako? More to come in my Blog article.


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  1. Isurus xiphodon
    $295.00

    An incredibly sized, Top Quality Mako shark tooth (Isurus xiphodonfrom Chile. This MONSTER sized Mako tooth measures 2-7/8" - a huge lower jaw PRINCIPAL ANTERIOR tooth. Highest quality enamel! Excellent color. Incredible "gum line". This was a big shark. Exceptional preservation - note the preserved nutrient hole on the root. Absolutely no repair or restoration. Please note that this tooth was initially thought to be a GW transition tooth, but there is insuffucuent serration development. A few serrations on one side near the base of the crown. I also added a couple of new close up photos and they do not support GW transition tooth classification. A rare BIG Chilean Mako shark tooth. You don't see these big, top quality Mako teeth any more.  No repair or restoration. Authenticity guaranteed.

    C202          Size: 2-7/8"

    Note - Adding 7 new Chilean Great White Transition teeth in August 2019    Link to Great White shark teeth

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  2. Isurus hastalis   (Cosmopolitodus hastalis)
    $150.00

    An EXTRA LARGE, Top Quality Broad-tooth Mako shark tooth - lower jaw anterior tooth from Chile. This tooth has a light blue crown and a tan root. Excellent color! Razor sharp cutting edge. Excellent preservation - note nutrient hole on root. Perfect tooth. A fantastic collector's tooth. Authenticity guaranteed.

    C302          Size: 2-3/4"

    Note - Adding 22 new Chilean Big "Mako" teeth in Feb. 2018    Link to Chilean Isurus hastalis teeth.

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  3. Isurus hastalis   (Cosmopolitodus hastalis)
    $85.00

    A rare, PATHOLOGICAL Broad-tooth "Mako" shark tooth - upper jaw lateral tooth from Chile. This tooth has a rich tan crown and a brown root. Excellent color! Sharp cutting edge with large enamel waves and two cuts where a dislodged tooth appears to have damaged this one. Very cool. Excellent preservation - note nutrient hole on root. Near perfect tooth. A fantastic collector's tooth - my best pathological tooth. Authenticity guaranteed.

    C316          Size: 2-1/16"

    Note - Adding 22 new Chilean Big "Mako" teeth in Feb. 2018    Link to Chilean Isurus hastalis teeth.

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  4. Isurus hastalis   (Cosmopolitodus hastalis)
    $65.00

    A rare, Pathological Broad-tooth "Mako" shark tooth - upper jaw lateral tooth from Chile. This tooth has a rich tan crown and a brown root. Excellent color! Sharp cutting edge with a distorted shape Excellent preservation - note nutrient hole on root. Near perfect tooth. A fantastic collector's pathological tooth. Authenticity guaranteed.

    C319          Size: 1-7/8"

    Note - Adding 22 new Chilean Big "Mako" teeth in Feb. 2018    Link to Chilean Isurus hastalis teeth.

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  5. Isurus hastalis   (Cosmopolitodus hastalis)
    $65.00

    A LARGE, Top Quality Broad-tooth "Mako" shark tooth - a big lower jaw lateral tooth from Chile. This tooth has a rich light blue and a light tan root. Excellent color! Razor sharp cutting edge. Excellent preservation - note nutrient hole on root. Perfect tooth. A fantastic collector's tooth. Authenticity guaranteed.

    C314          Size: 2-1/4"

    Note - Adding 22 new Chilean Big "Mako" teeth in Feb. 2018    Link to Chilean Isurus hastalis teeth.

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  6. Pathologic Shark Teeth           
    $60.00

    A strange Pathologic Isurus hastalis tooth with the left root lobe twisted behind the tooth. Excellent colors and preservation. Complete tooth. Top quality. A strange one!  

    C316P           Size: 1-3/4"

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  7. Isurus hastalis   (Cosmopolitodus hastalis)
    $47.50

    A Top Quality Broad-tooth "Mako" shark tooth - lower jaw lateral tooth from Chile. This tooth has a tan crown and a light tan root. Excellent color! Very sharp cutting edge and small side cusps (much like the Great White shark juveniles - very unique) Excellent preservation - note nutrient hole on root. Perfect tooth. A fantastic collector's tooth. Authenticity guaranteed.

    C322         Size: 1-3/4"

    Note - Adding 22 new Chilean Big "Mako" teeth in Feb. 2018    Link to Chilean Isurus hastalis teeth.

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  8. Isurus hastalis   (Cosmopolitodus hastalis)
    $40.00

    A Top Quality Broad-tooth "Mako" shark tooth - upper jaw A3 anterior tooth from Chile. This tooth has a light tan crown and a light tan root. Excellent color! Very sharp cutting edge Excellent preservation - note nutrient hole on root. Perfect tooth. A fantastic collector's tooth. Authenticity guaranteed.

    C320         Size: 1-11/16"

    Note - Adding 22 new Chilean Big "Mako" teeth in Feb. 2018    Link to Chilean Isurus hastalis teeth.

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