Didymograptus

Didymograptus
Temporal range: Middle Ordovician[1]
Didymograptus murchisoni, Wales
Scientific classification
Kingdom: Animalia
Division: Hemichordata
Class: †Graptolithinia
Genus: Didymograptus

Didymograptus is an extinct genus of graptolite with four rows of cups.

References

  1. Palmer, Douglas et al. (2009). "Ordovician". Prehistoric Life: the Definitive Visual History of Life on Earth (first American ed.). New York City: DK Publishing. p. 89. ISBN 978-0-7566-5573-0.
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