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Neusticosaurus edwardsi
Taxonomy
Pachypleura edwardsii was named by Sander (1989) [Largest of all pachypleurosaurids. Differs from N. pusillus and N. peyeri in that it
has a relatively small head (skull: trunk ratio is 0.23~0.27), its greater number of teeth (about 30 in upper jaws and 28 in lower jaws), its high neural spines in the posterior trunk and anterior tail region, the presence of three carpals, its relatively short femur (humerus: femur ratio is 1.3~1.8), and its reduced phalangeal count in the foot (1~2~3~4~3).]. It is a 3D body fossil. Its type locality is Besano (Scisti bituminosi), which is in an Anisian/Ladinian lagoonal/restricted shallow subtidal dolomite/shale in the Besano Formation of Italy.
It was recombined as Pachypleurosaurus edwardsi by Nopsca (1928) and Kuhn-Schnyder (1974); it was recombined as Neusticosaurus edwardsi by Rieppel and Lin (1995); it was recombined as Neusticosaurus edwardsii by Sander (1989) and Rieppel (1995).
It was recombined as Pachypleurosaurus edwardsi by Nopsca (1928) and Kuhn-Schnyder (1974); it was recombined as Neusticosaurus edwardsi by Rieppel and Lin (1995); it was recombined as Neusticosaurus edwardsii by Sander (1989) and Rieppel (1995).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1854 | Pachypleura edwardsii Cornalia |
| 1928 | Pachypleurosaurus edwardsi Nopsca |
| 1974 | Pachypleurosaurus edwardsi Kuhn-Schnyder |
| 1989 | Pachypleura edwardsii Sander |
| 1989 | Neusticosaurus edwardsii Sander p. 617 |
| 1995 | Neusticosaurus edwardsii Rieppel p. 213 |
| 1995 | Neusticosaurus edwardsi Rieppel and Lin p. 35 |
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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.
†Neusticosaurus edwardsi Sander 1989
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. M. Sander 1989 | . Largest of all pachypleurosaurids. Differs from N. pusillus and N. peyeri in that it has a relatively small head (skull: trunk ratio is 0.23-0.27), its greater number of teeth (about 30 in upperjaws and 28 in lowerjaws), its high neural spines in the posterior trunk and anterior tail region, the presence of three carpals, its relatively short femur (humerus femur ratio is 1.3-1.8), and its reduced phalangeal count in the foot (1-2-3-4-3). |
Measurements
No measurements are available
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| Source: subo = suborder, c = class, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009, Bush and Bambach 2015 | |||||