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Praecaprotina
Taxonomy
Praecaprotina was named by Yabe and Nagao (1926) [Sepkoski's age data: K Apti]. It is not extant.
It was assigned to Caprotinidae by Hayami (1975); to Hippuritoida by Sepkoski (2002); and to Polyconitidae by Skelton (2013).
It was assigned to Caprotinidae by Hayami (1975); to Hippuritoida by Sepkoski (2002); and to Polyconitidae by Skelton (2013).
Synonymy list
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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.
G. †Praecaprotina Yabe and Nagao 1926
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Aberhan et al. 2004, Kiessling 2003, Steuber 2002 | |||||
Age range: Late/Upper Aptian or 122.46000 to 113.00000 Ma
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aptian | Japan (Iwate) | P. yaegashii (40315 40316 40553 40554) | |
| Late/Upper Aptian | Japan | P. yaegashii (26197 49990 91264 91295 91299 91305) |