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Thalattocanthus
Taxonomy
Thalattocanthus was named by Carini (1962). It is considered to be a form taxon. Its type is Thalattocanthus consonus.
It was assigned to Theeliidae by Carini (1962), Frizzell and Exline (1966), Gutschick et al. (1967), Mostler (1971); to Theelidae by Wernlund (1977); to Myriotrochidae by Gilliland (1993); and to Apodida by Sepkoski (2002).
It was assigned to Theeliidae by Carini (1962), Frizzell and Exline (1966), Gutschick et al. (1967), Mostler (1971); to Theelidae by Wernlund (1977); to Myriotrochidae by Gilliland (1993); and to Apodida by Sepkoski (2002).
Species
T. consonus (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1962 | Thalattocanthus Carini p. 391 |
| 1966 | Thallatocanthus Frizzell and Exline p. U668 |
| 1967 | Thalattocanthus Gutschick et al. p. 1471 |
| 1971 | Thalattocanthus Mostler p. 10 |
| 1977 | Thalattocanthus Wernlund p. 81 |
| 1993 | Thallatocanthus Gilliland p. 122 |
| 2002 | Thallatocanthus 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 | |
|---|---|---|
| G. F. Carini 1962 | Sclerites in form of wheels; number of spokes variable (6 to 10 in type species), spokes relatively long; interspoke spaces polygonal, never elliptical or circular; rim inclined to plane of wheel, curving up- ward and inward, denticulate on inner margin; central portion with cylindrical hub elevated below plane of wheel on lower surface. |
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Aberhan 1992, Arkadiev and Bugrova 1999, Aberhan et al. 2004 | |||||
Age range: base of the Kinderhookian to the top of the Pelsonian or 358.86000 to 243.33000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kinderhookian - Osagean | USA (Montana) | T. consonus (41442) | |
| Mississippian | Afghanistan | Thallatocanthus consonus (99508) | |
| Bashkirian | Japan | T. consonus (24133) | |
| Middle Pennsylvanian | USA (Oklahoma) | T. consonus (93889) | |
| Capitanian | USA (Texas) | T. consonus (99860) | |
| Pelsonian | Austria | Thalathocanthus consonus (99797) |