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Trigonarca semiglabra
Taxonomy
Arca semiglabra was named by von Koenen (1897). It is a 3D body fossil. Its type locality is Mungo River, between Mundame and Eliki, which is in a Turonian carbonate limestone/sandstone in the Mungo River Formation of Cameroon.
It was recombined as Trigonarca semiglabra by Dartevelle and Freneix (1957).
It was recombined as Trigonarca semiglabra by Dartevelle and Freneix (1957).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1897 | Arca semiglabra von Koenen p. 29 figs. Pl 3, figs 28,29 |
| 1957 | Trigonarca semiglabra Dartevelle and Freneix p. 27 |
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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.
†Trigonarca semiglabra von Koenen 1897
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Mikkelsen and Bieler 2008 | |||||
Age range: Early/Lower Turonian or 93.90000 to 89.80000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Turonian | Cameroon | Arca semiglabra (209694) |