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Ptychodus polygyrus

SKU
T261
In stock
$145.00
Overview

A Top Quality Ptychodus polygyrus, an extinct durophagous (shell-crushing) shark, tooth from Dallas Co., Texas. An excellent example of this Upper Cretaceous Kamp Ranch Fm. tooth. These massive teeth have a design with 8 to 9 fine transverse ridges extending across the cusp face and transition to a concentric pattern at the base of the cusp. Authenticity guaranteed. Near perfect tooth - root not complete. This is a rare species.

T261            SIZE: 1"

Note - Adding 100+ new Texas shark teeth in October 2021.   Link to Texas shark teeth

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This catalog contains excellent teeth from a durophagous (shell-crushing) shark - Ptychodus polygyrus. These teeth were collected from the Kamp Ranch Formation. All teeth are complete and well preserved.

Eagle Ford Group  - The Eagle Ford Group is a sedimentary rock formation deposited during the Upper Cretaceous Cenomanian and Turonian ages (90-95 MYA) that covers much central Texas. Eagle Ford Group contains the following fossil bearing units.

  • Arcadia Park Formation is a member of the Eagle Ford Group in Central Texas (Turonian age)
  • South Bosque Shale Formation is a member of the Eagle Ford Group in Central Texas (early Turonian)
  • Lake Waco Formation is a member of the Eagle Ford Group in Central Texas (Cenomanian)

Kamp Ranch Formation (member) is limestone which is part of the Arcadia Park Fm., Eagle Ford Group that dates to the Middle Turonian age (90 MYA) in Dallas County, Texas