Didymograptus
| Didymograptus Temporal range: Middle Ordovician[1] | |
|---|---|
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| 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
- ↑ 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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