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Verneuilites pygmaeus
Taxonomy
Gastrioceras pygmaeum was named by Mather (1915).
It was recombined as Pygmaeoceras pygmaeum by Gordon (1964); it was recombined as Verneuilites pygmaeus by Manger and Saunders (1980).
It was recombined as Pygmaeoceras pygmaeum by Gordon (1964); it was recombined as Verneuilites pygmaeus by Manger and Saunders (1980).
Synonymy list
| Year | Name and author |
|---|---|
| 1915 | Gastrioceras pygmaeum Mather |
| 1964 | Pygmaeoceras pygmaeum Gordon p. 261 figs. Pl 28, figs 18-25; text-fig 81 |
| 1980 | Verneuilites pygmaeus Manger and Saunders p. 48 figs. Pl 6, figs 1,2,8,9,11; text-figs 19,20 |
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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.
†Verneuilites pygmaeus Mather 1915
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 8 | 8.91 | 3.40 | 19.7 | 9.65 | 6.28 | |
| shell diameter | 8 | 17.4 | 8.30 | 34.8 | 17.8 | 10.6 | |
| shell inflation | 8 | 3.29 | 2.10 | 4.40 | 3.20 | 0.774 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Morrowan or 323.40000 to 318.60000 Ma
Collections (20 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Morrowan | USA (Arkansas) | Pygmaeoceras pygmaeum (43203 43204 43205 43206 43350 43353 43366 43367 43369 43372 43375 43376 43381 43382 43383 43384 43386 43424) Verneuilites pygmaeus (43100 43107) |