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Orthograptus pageanus
Taxonomy
Diplograptus (Orthograptus) pageanus was named by Elles and Wood (1907) [Lectotype BU 1222]. Its type specimen is BU 1222 and is a compression fossil.
It was recombined as Orthograptus pageanus by Goldman (1995).
It was recombined as Orthograptus pageanus by Goldman (1995).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1907 | Diplograptus (Orthograptus) pageanus Elles and Wood pp. 225- 226 figs. PI. 28, fig. 3a-3c, text-fig. 147 |
| 1995 | Orthograptus pageanus Goldman pp. 519 - 524 figs. 5.1-5.15, 6.1-6.6, 7.1-7.3, 7.5 |
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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.
†Orthograptus pageanus Elles and Wood 1907
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. Goldman 1995 | Orthograptus with long single apertural spines on the first two or rarely first four thecae; much shorter paired apertural spines on subsequent thecae; rhabdosome widens rapidly from a relatively narrow proximal end. |