Quadragnostus

Quadragnostus
Temporal range: Cambrian[1]
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Trilobita
Order:
Agnostida
Family:
Metagnostidae
Genus:
Quadragnostus

Howell, 1966

Quadragnostus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites. It lived during the Cambrian Period,[1] which lasted from approximately 539 to 485 million years ago.

References

  1. ^ a b Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Trilobita entry)". Bulletins of American Paleontology. 364: 560.


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