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Achistrum brevis
Taxonomy
Achistrum brevis was named by Gutschick (1959). It is considered to be a form taxon. Its type specimen is Holotype USNM 137013, paratypes USNM 137014, 137015, 137016 and is a 3D body fossil. Its type locality is Meadel Ditch Quarry, which is in a Kinderhookian offshore mudstone/limestone in the Rockford Limestone Formation of Indiana.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1959 | Achistrum brevis Gutschick pp. 132-133 figs. text-fig. 2, pl. 25 figs. 20-24 |
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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.
†Achistrum brevis Gutschick 1959
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Aberhan 1992, Arkadiev and Bugrova 1999 | |||||
Age range: Kinderhookian or 358.90000 to 352.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kinderhookian | USA (Indiana) | Achistrum brevis (type locality: 69302) |