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Trapezium (Schedotrapezium)
Taxonomy
Trapezium (Schedotrapezium) was named by Stewart (1930) [Sepkoski's age data: K Camp K Maes Sepkoski's reference number: 914]. Its type is Trapezium carinatum.
It was reranked as Schedotrapezium by Cox et al. (1969), Sepkoski (2002).
It was assigned to Trapezium by Stewart (1930); to Arcticidae by Cox et al. (1969); and to Veneroida by Sepkoski (2002).
It was reranked as Schedotrapezium by Cox et al. (1969), Sepkoski (2002).
It was assigned to Trapezium by Stewart (1930); to Arcticidae by Cox et al. (1969); and to Veneroida by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1930 | Trapezium (Schedotrapezium) Stewart pp. 173 - 174 |
| 1969 | Schedotrapezium Cox et al. p. N650 |
| 2002 | Schedotrapezium Sepkoski |
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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.
Subg. †Trapezium (Schedotrapezium) Stewart 1930
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†Trapezium (Schedotrapezium) carinatum Gabb 1864
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: Middle Campanian or 83.60000 to 72.20000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Campanian | USA (California) | Trapezium carinatum (72056) |