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Pterotrigonia (Acanthotrigonia)
Taxonomy
Acanthotrigonia was named by van Hoepen (1929) [Sepkoski's age data: K Coni-l K Maes Sepkoski's reference number: 891]. It is not extant.
It was synonymized subjectively with Pterotrigonia by Cox (1952); it was reranked as Pterotrigonia (Acanthotrigonia) by Tashiro and Kozai (1982).
It was assigned to Pterotrigonia by Tashiro and Kozai (1982); and to Trigonioida by Sepkoski (2002).
It was synonymized subjectively with Pterotrigonia by Cox (1952); it was reranked as Pterotrigonia (Acanthotrigonia) by Tashiro and Kozai (1982).
It was assigned to Pterotrigonia by Tashiro and Kozai (1982); and to Trigonioida by Sepkoski (2002).
Subtaxa
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1929 | Acanthotrigonia van Hoepen |
| 1982 | Pterotrigonia (Acanthotrigonia) Tashiro and Kozai p. 80 |
| 2002 | Acanthotrigonia 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. †Pterotrigonia (Acanthotrigonia) van Hoepen 1929
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†Acanthotrigonia shepstonei Griesbach 1871
†Pterotrigonia (Acanthotrigonia) higoensis Tamura and Tashiro 1967
†Pterotrigonia (Acanthotrigonia) mashikensis Tamura and Tashiro 1967
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 Aptian to the top of the Early/Lower Campanian or 125.00000 to 70.60000 Ma
Collections (18 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aptian | Japan (Kochi) | Pterotrigonia moriana (40222) | |
| Cenomanian | Japan | Pseudotrigonia mashikensis, Pseudotrigonia higoensis (87006) Pterotrigonia longiloba (141571) Pterotrigonia mashikensis (87011) | |
| Cenomanian | Japan (Kumamoto) | Pterotrigonia dilapsa, Pterotrigonia ogawai, Pterotrigonia yeharai (39638) Pterotrigonia mashikensis (40171) Pterotrigonia mashikensis, Pterotrigonia higoensis (40207) Pterotrigonia ogawai (40602) | |
| Cenomanian | Japan (Kochi) | Pterotrigonia longiloba (39976) | |
| Cenomanian | Japan (Ishikari) | Pterotrigonia longiloba (39578 39652) | |
| Turonian | Japan (Ishikari) | Pterotrigonia longiloba (39577 39669) | |
| Early/Lower Turonian | Japan (Kumamoto) | Pterotrigonia mashikensis (40180) Pterotrigonia mashikensis, Pterotrigonia higoensis (40208) | |
| Middle Turonian | Angola | Acanthotrigonia shepstonei (210897) | |
| Middle Santonian | Angola | Acanthotrigonia sp. (210904) | |
| Early/Lower Campanian | Mozambique | Acanthotrigonia shepstonei (174826) |