Eugeneodontid Sharks

Agassizodus sp. cf. variabilis (Meek & Worthen)

Campodus may have been a plankton feeder, eating algae and tiny organisms that essentially floated and carried at will by the currents in the near surface ocean waters. Some individual Campodus may have grown to become some very large creatures. Its' teeth do not have the sharp edges that would be suitable for tearing flesh and the tiny ridges across the crown of the tooth do not suggest it was suitable for crushing shells of invertebrates such as brachiopods. A more or less complete specimen in the University of Nebraska State Museum Collections that was collected by the late W. D. "Ted" White that is about one meter long is preserved in black shale, and its largest lateral teeth are about 15 mm wide. Some individual Campodus teeth also collected by Mr. White are over 100 mm wide. These large teeth suggest some very large fish, perhaps as long as 13 m (40 ft). The are also some "V-shaped" teeth that have also been attributed to the genus Agassizodus. Such teeth are called symphysials and they were positioned in the middle of the mouth at the plane of symmetry that extended the length of the fish.

Eugeneodontid Sharks
  • Species Name: Campodus variabilis
  • Date: 8/8/2006
  • Database ID: 59
  • Description: More or less complete anterior of "Campodus variabilis".
Eugeneodontid Sharks
Eugeneodontid Sharks
  • Species Name: Campodus variabilis
  • Date: 8/8/2006
  • Database ID: 57
  • Description: "Campodus variabilis"
Eugeneodontid Sharks
Eugeneodontid Sharks
  • Species Name: Campodus variabilis
  • Date: 7/27/2006
  • Database ID: 11
  • Description: Near the center of the image is a partially exposed, small lateral tooth from Campodus variabilis---can you spot it.This specimen was collected from Haynies Limestone bed, Ervine Creek Limestone Member, Deer Creek Formation, Late Pennsylvanian (Virgilian), Cass County, Nebraska.
Eugeneodontid Sharks
Eugeneodontid Sharks
  • Species Name: Campodus variabilis
  • Date: 7/27/2006
  • Database ID: 10
  • Description: This example shows the cartilage of the jaw (brown) and teeth (white) of an immature specimen of Campodus variabilis. Specimen from Stark Shale Member, Dennis Formation, Late Pennsylvanian (Missourian), Sarpy County, Nebraska. Specimen from W. D. “Ted” White collections.
Eugeneodontid Sharks
Eugeneodontid Sharks
  • Species Name: Campodus variabilis
  • Date: 7/27/2006
  • Database ID: 9
  • Description: Artist's reconstruction of "Campodus variabilis". Illustration by Frankie Gould.
Eugeneodontid Sharks
Eugeneodontid Sharks
  • Species Name: Campodus variabilis
  • Date: 7/8/2003
  • Database ID: 4
  • Description: Artist's reconstruction of "Campodus variabilis". Illustration by Frankie Gould.
Eugeneodontid Sharks