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Laevitrigonia troedssoni
Taxonomy
Laevitrigonia troedssoni was named by Melville (1956). It is not extant. Its type specimen is GSM Bj 2538/36. Its type locality is Stowell Park borehole (T. ibex Zone, B. centaurus Subzone, 985-1188ft), which is in a Pliensbachian marine mudstone/shale in the Lower Lias Formation of the United Kingdom.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1956 | Laevitrigonia troedssoni Melville |
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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.
†Laevitrigonia troedssoni Melville 1956
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range: Early/Lower Pliensbachian or 189.60000 to 183.00000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Pliensbachian | United Kingdom (Gloucestershire) | Laevitrigonia troedssoni (type locality: 204124) | |
| Early/Lower Pliensbachian | United Kingdom (Gloucestershire) | Laevitrigonia troedssoni (204128) |