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Ptiograptus
Taxonomy
Ptiograptus is a genus. It is not extant.
It was assigned to Dendroidea by Sepkoski (2002); to Dendrograptidae by Maletz (2014); and to Acanthograptidae by Maletz et al. (2020).
It was assigned to Dendroidea by Sepkoski (2002); to Dendrograptidae by Maletz (2014); and to Acanthograptidae by Maletz et al. (2020).
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Ptiograptus Sepkoski |
| 2014 | Ptiograptus Maletz p. 493 |
| 2020 | Ptiograptus Maletz et al. p. 56 |
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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.
G. †Ptiograptus
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Maletz et al. 2020 | Fan-shaped tubarium with compound stipes; stipes formed through triad budding(?) of long, tubular thecae; stipes are connected at irregular distances by thecal transfer of single or multiple thecae (bridges); anastomosis is not found; thecae tubular, aperturally isolated and often laterally oriented to the stipes; bithecae may be present, but are impossible to recognize; proximal development unknown. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Aberhan et al. 2004, Aberhan 1992 | |||||
Collections
No collection or age range data are available