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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Aulacocyclinae
Taxonomy
Aulacocyclinae was named by Kaup (1868). It is extant.
It was assigned to Passalidae by Lawrence and Newton (1995), Boucher and Bai (2017), Cai et al. (2022).
It was assigned to Passalidae by Lawrence and Newton (1995), Boucher and Bai (2017), Cai et al. (2022).
Synonymy list
| Year | Name and author |
|---|---|
| 1868 | Aulacocyclinae Kaup |
| 1995 | Aulacocyclinae Lawrence and Newton, Jr. |
| 2017 | Aulacocyclinae Boucher and Bai p. 4 |
| 2022 | Aulacocyclinae Cai et al. |
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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. Aulacocyclinae Kaup 1868
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Kiessling 2004, Bush and Bambach 2015 | |||||
Age range
Maximum range based only on fossils: Early/Lower Cenomanian or 100.50000 to 93.90000 Ma
Minimum age of oldest fossil (stem group age): 93.9 Ma
Minimum age of oldest fossil (stem group age): 93.9 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cenomanian | Myanmar | Ceracyclus lotus (161726) Ceracyclus lotus, Ceracyclus jirouxi (189531) |