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Aorograptus
Taxonomy
Aorograptus was named by Williams and Stevens (1991) [Sepkoski's age data: O Trem-u Sepkoski's reference number: 946]. Its type is Bryograptus victoriae.
It was assigned to Anisograptidae by Williams and Stevens (1991); and to Dendroidea by Sepkoski (2002).
It was assigned to Anisograptidae by Williams and Stevens (1991); and to Dendroidea by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1991 | Aorograptus Williams and Stevens p. 23 |
| 2002 | Aorograptus Sepkoski |
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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 | |
|---|---|---|
| S. H. Williams and K. K. Stevens 1991 | Pendent or declined rhabdosome with regular, commonly delayed, dichotomous
branching from two primary stipes. Sicula and most autothecae with bithecae; autothecae composed of simple, dichgraptid-like tubes, commonly curved with fairly high distal inclinations, stipes relatively robust. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Age range: Migneintian or 481.10000 to 477.10000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tremadoc | Canada (Yukon) | A. victoriae (203964 203965 203966 203968 203969 203970) | |
| Lancefieldian | Australia (Victoria) | Adelograptus victoriae (204419 204421) | |
| Migneintian | Canada (Newfoundland and Labrador) | A. victoriae (3306 204409 204410 204411 204412) |