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Trochonodus permianus
Taxonomy
Trochonodus permianus was named by Nützel and Nakazawa (2012). Its type specimen is AMF-KG-151, a shell, and it is a 3D body fossil. Its type locality is Ichihashi Quarry, Kinshozan, Akasaka, which is in a Capitanian shallow subtidal packstone in the Akasaka Formation of Japan.
Synonymy list
| Year | Name and author |
|---|---|
| 2012 | Trochonodus permianus Nützel and Nakazawa p. 118 figs. 11B-J |
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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.
†Trochonodus permianus Nützel and Nakazawa 2012
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 5 | 2.20 | 0.930 | 4.70 | 2.00 | 1.47 | |
| shell diameter | 5 | 2.10 | 1.20 | 4.20 | 1.70 | 1.26 |
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| Source: superf = superfamily, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range: Capitanian or 264.28000 to 259.51000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Capitanian | Japan | Trochonodus permianus (type locality: 109667) |