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Didymograptus (Didymograptellus)
Taxonomy
Didymograptus (Didymograptellus) was named by Cooper and Fortey (1982) [Sepkoski's age data: O Aren-l].
It was reranked as Didymograptellus by Sepkoski (2002), Maletz et al. (2018).
It was assigned to Didymograptus by Cooper and Fortey (1982); to Graptoloidea by Sepkoski (2002); and to Pterograptidae by Maletz et al. (2018).
It was reranked as Didymograptellus by Sepkoski (2002), Maletz et al. (2018).
It was assigned to Didymograptus by Cooper and Fortey (1982); to Graptoloidea by Sepkoski (2002); and to Pterograptidae by Maletz et al. (2018).
Species lacking formal opinion data
Didymograptus acutus, Didymograptus adamantinus, Didymograptus aequalis, Didymograptus affinis, Didymograptus asperus, Didymograptus bifidis, Didymograptus caduceus, Didymograptus clavalus, Didymograptus compressus, Didymograptus denticulatus, Didymograptus dilatans, Didymograptus eudous, Didymograptus formosus, Didymograptus geminus, Didymograptus geminus, Didymograptus gemminus, Didymograptus halli, Didymograptus indentus, Didymograptus missilis, Didymograptus mundus, Didymograptus navis, Didymograptus nicholsoni, Didymograptus nicholsoni, Didymograptus nilidus, Didymograptus pakrianus, Didymograptus perneri, Didymograptus protoindentus, Didymograptus retroflexus, Didymograptus rigoletto, Didymograptus sagitticaulis, Didymograptus serratulus, Didymograptus simulans
Synonymy list
| Year | Name and author |
|---|---|
| 1982 | Didymograptus (Didymograptellus) Cooper and Fortey p. 220 |
| 2002 | Didymograptellus Sepkoski |
| 2018 | Didymograptellus Maletz et al. p. 23 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Subg. †Didymograptus (Didymograptellus) Cooper and Fortey 1982
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. A. Cooper and R. A. Fortey 1982 | Didymograptus with pendent habit, rhabdosome gracile to robust. Theca I1 typically originates high on sicula, and of similar length to sicula. Theca I2 dicalycal, with normal isograptid development. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Collections
No collection or age range data are available