Gigantic shark from the dinosaur age discovered


This 2011 video says about itself:

Effects of Climate Change on Cretaceous Sharks

From PLOS ONE:

A Gigantic Shark from the Lower Cretaceous Duck Creek Formation of Texas

Joseph A. Frederickson, Scott N. Schaefer, Janessa A. Doucette-Frederickson

Published: June 3, 2015

Abstract

Three large lamniform shark vertebrae are described from the Lower Cretaceous of Texas. We interpret these fossils as belonging to a single individual with a calculated total body length of 6.3 m. This large individual compares favorably to another shark specimen from the roughly contemporaneous Kiowa Shale of Kansas.

Neither specimen was recovered with associated teeth, making confident identification of the species impossible. However, both formations share a similar shark fauna, with Leptostyrax macrorhiza being the largest of the common lamniform sharks. Regardless of its actual identification, this new specimen provides further evidence that large-bodied lamniform sharks had evolved prior to the Late Cretaceous.

4 thoughts on “Gigantic shark from the dinosaur age discovered

  1. Pingback: Small dinosaur discovered in Australia | Dear Kitty. Some blog

  2. Pingback: Dinosaur discovery in Egypt | Dear Kitty. Some blog

  3. Pingback: Dinosaurs became extinct, sharks survived | Dear Kitty. Some blog

  4. Pingback: Dinosaur age shark teeth discovery in Dutch Maastricht | Dear Kitty. Some blog

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