Kossmaticeras Explained

Kossmaticeras is an extinct ammonoid genus belonging to the desmoceratacean family Kossmaticeratidae. Species in this genus were fast-moving nektonic carnivores. They lived during the Late Cretaceous, from upper Turonian to upper Maastrichtian age.^[1] The type species of the genus is Ammonites theobaldianus.

Subgenera and species

• Kossmaticeras (Karapadites) Collignon, 1954
  • Kossmaticeras (Karapadites) besairieri Collignon, 1954
  • Kossmaticeras (Karapadites) karapadensis Kossmat, 1897
  • Kossmaticeras (Karapadites) madrasinus Stoliczka, 1865
  • Kossmaticeras (Karapadites) planissimus Collignon, 1966
• Kossmaticeras (Kossmaticeras) de Grossouvre, 1901
  • Kossmaticeras (Kossmaticeras) inornatum Collignon, 1966
  • Kossmaticeras (Kossmaticeras) jeletzkyi Collignon, 1965
  • Kossmaticeras (Kossmaticeras) jonesi Collignon, 1965
  • Kossmaticeras (Kossmaticeras) kilenensis Alsen, 2018
  • Kossmaticeras (Kossmaticeras) sakondryense Collignon, 1954
  • Kossmaticeras (Kossmaticeras) sparsicostatum Kossmat, 1897
  • Kossmaticeras (Kossmaticeras) theobaldianum Stolickza, 1865
• Kossmaticeras (Natalites) Collignon, 1954
  • Kossmaticeras (Natalites) africanus van Hoepen, 1920
  • Kossmaticeras (Natalites) elegans Kennedy, 1985
  • Kossmaticeras (Natalites) similis Spath, 1921
  • Kossmaticeras (Natalites) canadense McLearn, 1972

Distribution

Fossils of species within this genus have been found in the Cretaceous sediments of Antarctica, Australia, Canada, Chile, India, Madagascar, New Zealand and South Africa.

Further reading

• Arkell et al. 1957. Mesozoic Ammonoidea, L374; Treatise on Invertebrate Paleontology Part L (Ammonoidea); Geol Soc of America and Univ Kansas Press.

Notes and References

1. Sepkoski, Jack Sepkoski's Online Genus Database – Cephalopoda