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Perisphinctes (Kranaosphinctes) matsushimai
Taxonomy
Perisphinctes (Procerites) matsushimai was named by Yokoyama (1904).
It was recombined as Perisphinctes (Kranaosphinctes) matsushimai by Matsukawa et al. (2008) and Sato and Yamada (2014).
It was recombined as Perisphinctes (Kranaosphinctes) matsushimai by Matsukawa et al. (2008) and Sato and Yamada (2014).
Sister species lacking formal opinion data
Kranaosphinctes subbullingdonensis, Kranaosphinctes poissoni, Kranaosphinctes randrianarivonyi, P. africanus, P. andium, P. mairei-matheyi, P. malinowskae, P. panderi, P. polygyratus, P. praestenocyclus, P. progeron, P. quadratus, P. scythicus, P. siemiradzkii, P. eucostatus, P. quadratus, P. pickeringius, P. buckmani, P. buckmanni, P. luciaeformis, P. crassissimus, P. A, P. B, P. anguiculus, P. patturatensis, P. siemirazkii, P. roedereri, P. alatus, P. andelotensis, P. densecostatus, P. pumilus, P. dorsoplanus, P. dacquei, P. polygyratus
Synonymy list
| Year | Name and author |
|---|---|
| 1904 | Perisphinctes (Procerites) matsushimai Yokoyama p. 3 figs. Pl 1, fig 1 |
| 2008 | Perisphinctes (Kranaosphinctes) matsushimai Matsukawa et al. p. 4 figs. 4, 5 |
| 2014 | Perisphinctes (Kranaosphinctes) matsushimai Sato and Yamada p. 36 figs. 11-13 |
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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.
†Perisphinctes (Kranaosphinctes) matsushimai Yokoyama 1904
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 30.9 | 23.0 | 36.0 | 35.5 | 7.37 | |
| shell diameter | 3 | 107.9 | 82.0 | 125.0 | 122.5 | 24.1 | |
| shell inflation | 3 | 54.9 | 43.0 | 64.0 | 60.0 | 11.2 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Middle Oxfordian or 161.20000 to 155.70000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Oxfordian | Japan | Perisphinctes matsushimai (182847 182856) |