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Acanthotrigonia shepstonei
Taxonomy
Trigonia shepstonei was named by Griesbach (1871).
It was recombined as Pterotrigonia shepstonei by Dartevelle and Freneix (1957); it was recombined as Acanthotrigonia shepstonei by van Hoepen (1929), Cox (1952), Cooper (2003).
It was recombined as Pterotrigonia shepstonei by Dartevelle and Freneix (1957); it was recombined as Acanthotrigonia shepstonei by van Hoepen (1929), Cox (1952), Cooper (2003).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1871 | Trigonia shepstonei Griesbach |
| 1929 | Acanthotrigonia shepstonei van Hoepen |
| 1952 | Acanthotrigonia shepstonei Cox |
| 1957 | Pterotrigonia shepstonei Dartevelle and Freneix p. 126 |
| 2003 | Acanthotrigonia shepstonei Cooper p. 91 |
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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.
†Acanthotrigonia shepstonei Griesbach 1871
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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: base of the Middle Turonian to the top of the Early/Lower Campanian or 93.50000 to 70.60000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Turonian | Angola | Acanthotrigonia shepstonei (210897) | |
| Early/Lower Campanian | Mozambique | Acanthotrigonia shepstonei (174826) |