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Rissoacea
Taxonomy
Rissoacea was named by Gray (1847) [m. kosnik taxon no: 6133].
It was assigned to Caenogastropoda by Knight et al. (1960); to Archaeogastropoda by Ward and Blackwelder (1987); to Truncatelloidea by Ponder and Warén (1988); and to Mesogastropoda by Allison (1955), Sohl (1964) and Beu et al. (1990).
It was assigned to Caenogastropoda by Knight et al. (1960); to Archaeogastropoda by Ward and Blackwelder (1987); to Truncatelloidea by Ponder and Warén (1988); and to Mesogastropoda by Allison (1955), Sohl (1964) and Beu et al. (1990).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1847 | Rissoacea Gray |
| 1955 | Rissoacea Allison p. 414 |
| 1960 | Rissoacea Knight et al. p. 319 |
| 1964 | Rissoacea Sohl p. 359 |
| 1987 | Rissoacea Ward and Blackwelder p. 131 |
| 1988 | Rissoacea Ponder and Warén p. 296 |
| 1990 | Rissoacea Beu et al. p. 405 |
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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.
Superfm. †Rissoacea Gray 1847
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G. †Mirolaminatus Wang 1977
G. †Trochoturbella Cossmann 1921
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Subg. †Trochoturbella (Proturboella) Conti and Fischer 1984
†Trochoturbella concavispira Melville 1956
†Trochoturbella liassica Melville 1956
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Reference: Kiessling 2004 | |||||
Age range
Maximum range based only on fossils: base of the Sinemurian to the top of the Burdigalian or 199.30000 to 15.97000 Ma
Minimum age of oldest fossil (stem group age): 190.8 Ma
Minimum age of oldest fossil (stem group age): 190.8 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Sinemurian | United Kingdom (Gloucestershire) | Trochoturbella concavispira (204150) | |
| Pliensbachian | United Kingdom (Gloucestershire) | Trochoturbella liassica (204124) | |
| Middle Toarcian | United Kingdom (Gloucestershire) | Trochoturbella sp. (204112) | |
| Burdigalian | USA (Florida) | Syncera microgaza (41760 42250 42290 42328 42443) |