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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Circodiscinae
Taxonomy
Circodiscinae was named by Dumitrica (1989). It is extant. Its type is Circodiscus.
It was assigned to Larnacillidae by De Wever et al. (2001).
It was assigned to Larnacillidae by De Wever et al. (2001).
Subtaxa
Circodiscus (syn. Plectodiscus) (type genus)
Synonymy list
| Year | Name and author |
|---|---|
| 1989 | Circodiscinae Dumitrica |
| 2001 | Circodiscinae De Wever et al. p. 156 |
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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.
Subfm. Circodiscinae Dumitrica 1989
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G. Circodiscus Petrushevskaya and Kozlova 1972
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Invalid names: Plectodiscus Petrushevskaya and Kozlova 1972 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Kiessling 1999 | |||||
Age range
Maximum range based only on fossils: base of the Miocene to the top of the Pliocene or 23.04000 to 2.58000 Ma
Minimum age of oldest fossil (stem group age): 5.333 Ma
Minimum age of oldest fossil (stem group age): 5.333 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Miocene | North Pacific | Circodiscus circularis (266412 266414) | |
| Pliocene | North Pacific | Circodiscus microporus (262428 262430 262433 262436) |