Tetragraptus
From Wikipedia the free encyclopedia
| Tetragraptus Temporal range: Ordovician ~ | |
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| Tetragraptus fruticosus | |
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| Tetragraptus approximatus | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Hemichordata |
| Class: | Pterobranchia |
| Order: | †Graptoloidea |
| Family: | †Dichograptidae |
| Genus: | †Tetragraptus Salter, 1863 |
| Species | |
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Tetragraptus is an extinct genus of graptolites from the Ordovician period.
Species[1][edit]
- T. akzharensis
- T. approximatus
- T. fruticosus
- T. insuetus
Distribution[edit]
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[edit]
- ^ a b Tetragraptus at Fossilworks.org
Further reading[edit]
- Don Lessem & Jan Sovak (1999). Dinosaurs to Dodos: An Encyclopedia of Extinct Animals. Scholastic. ISBN 978-0-590-31684-2.
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