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Paratetragraptus
Taxonomy
Tetragraptus (Paratetragraptus) was named by Obut (1957). Its type is Tetragraptus approximatus.
It was reranked as Paratetragraptus by Vandenberg (2017).
It was assigned to Tetragraptus by Obut (1957); and to Phyllograptidae by Vandenberg (2017).
It was reranked as Paratetragraptus by Vandenberg (2017).
It was assigned to Tetragraptus by Obut (1957); and to Phyllograptidae by Vandenberg (2017).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1957 | Tetragraptus (Paratetragraptus) Obut |
| 2017 | Paratetragraptus Vandenberg p. 43 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. H. M. Vandenberg 2017 | Tetragraptid with declined funicle and declined or deflexed stipes, tubarium H- or X-shaped in dorsoventral view. |