Dichograptus

Dichograptus
Temporal range: Ordovician ~478–463 Ma
Dichograptus octobrachiatus
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Hemichordata
Class: Pterobranchia
Subclass: Graptolithina
Order: †Graptoloidea
Family: †Dichograptidae
Genus: †Dichograptus
Salter, 1863 
Type species
Dichograptus sedgwicki
Salter, 1863

Dichograptus (meaning two-branched writing or double-line marks) is an extinct genus of graptolites from the Ordovician.

Dichograptus probably fed on plankton. Individual animals were very tiny, only growing a few millimeters in length (1/8 of an inch).

Distribution

Fossils of Dichograptus have been found in Argentina, Chile, China, Colombia (near Caño Cristales, Meta), New Zealand, Norway, and the United Kingdom.

References

  1. ↑ R. A. Cooper & R. A. Fortey (1982). "The Ordovician graptolites of Spitsbergen". Bulletin of the British Museum (Natural History), Geology. 36: 1–171.
  2. ↑ Don Lessem & Jan Sovak (1999). Dinosaurs to Dodos: An Encyclopedia of Extinct Animals. Scholastic. ISBN 0-590-31684-2.
  3. ↑ Dichograptus at Fossilworks.org

Further reading