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Omma liassicum
Taxonomy
Omma liassica was named by Crowson (1962). Its type specimen is BMNH I.11095, an exoskeleton, and it is a compression fossil. Its type locality is Brown's Wood, Warwickshire, which is in a Rhaetian marine horizon in the United Kingdom.
It was corrected as Omma liassicum by Soriano and Delclos (2006), Kirejtshuk (2020) and Escalona et al. (2020).
It was corrected as Omma liassicum by Soriano and Delclos (2006), Kirejtshuk (2020) and Escalona et al. (2020).
Synonymy list
| Year | Name and author |
|---|---|
| 1962 | Omma liassica Crowson p. 153 figs. Pl 3, figs 1-3 |
| 2006 | Omma liassicum Soriano and Delclos p. 199 |
| 2020 | Omma liassicum Escalona et al. p. 550 |
| 2020 | Omma liassicum Kirejtshuk p. 37 |
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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.
†Omma liassicum Crowson 1962
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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 | |||||
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Rhaetian | United Kingdom | Omma liassica (133036) | |
| Rhaetian | United Kingdom (England) | Omma liassica (type locality: 113957 114677) | |
| Rhaetian - Early/Lower Hettangian | United Kingdom (England) | Omma liassica (124688) | |
| Planorbis | United Kingdom (England) | Omma liassica (123982) | |
| Obtusum | United Kingdom (England) | Omma liassica (114637) |