| Dichograptidae | |
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| Didymograptus murchisoni | |
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| Family: | Dichograptidae Lapworth, 1873
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Dichograptidae is an extinct family of graptolites. Fossils are found mostly from the Late Ordovician to the Early Devonian.[1]
- ^ Maletz, Jörg (2017). Graptolite Paleobiology. Wiley-Blackwell. ISBN 9781118515617.