Tetragraptus

Tetragraptus
Temporal range: Ordovician
~478–455 Ma
Tetragraptus fruticosus
Tetragraptus approximatus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Hemichordata
Class: Pterobranchia
Order: †Graptoloidea
Family: †Dichograptidae
Genus: †Tetragraptus
Salter, 1863
Species

Tetragraptus is an extinct genus of graptolites from the Ordovician period.

Species[1]

Distribution

Fossils of Tetragraptus have been found in Argentina, Australia, Bolivia, Canada (Quebec, Yukon, Newfoundland and Labrador and Northwest Territories), Chile, China, Colombia (near Caño Cristales, Meta), the Czech Republic, France, Morocco, New Zealand, Norway, the Russian Federation, Spain, Sweden, the United Kingdom, and the United States (Alaska, Idaho, Nevada, Utah).[1]

References

  1. ^ a b Tetragraptus at Fossilworks.org

Further reading

  • Don Lessem & Jan Sovak (1999). Dinosaurs to Dodos: An Encyclopedia of Extinct Animals. Scholastic. ISBN 978-0-590-31684-2.


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