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Sclerorhynchus pettersi

Mikrogeophagus

By Mikrogeophagus

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Sclerorhynchus pettersi, North TX

Maastrichtian, Cretaceous

Jun, 2023

 

Supposedly distinguished from the Campanian Sclerorhynchus fanninensis teeth by their single hooked barb, however this feature seems to not be so definitive. Some specimens do not exhibit this hooked appearance while others do as shown in my sample as well as others. If the species are synonymous, S. pettersi is the preferred name.

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Kemp Clay

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Photo Information

  • Taken with Apple iPhone 11
  • Focal Length 4.3 mm
  • Exposure Time 1/121
  • f Aperture f/1.8
  • ISO Speed 64
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