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Parvosaurus
Taxonomy
Parvosaurus was named by Freisem et al. (2024). Its type is Parvosaurus harudensis.
It was assigned to Sphenodontia by Freisem et al. (2024).
It was assigned to Sphenodontia by Freisem et al. (2024).
Species
P. harudensis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2024 | Parvosaurus Freisem et al. p. 2 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. S. Freisem et al. 2024 | Parvosaurus harudensis differs from other sphenodontians in the following combination of features: premaxilla with long ascending process reaching almost to a third of the anteroposterior length of the nasal; maxilla with long posterior process reaching up to the middle of the jugal body; dentary with prominent coronoid process; nasals rectangular in outline with anteroposteriorly parallel sutures to prefrontals; postfrontal with well-developed posterior process extending posteriorly beyond the fronto-parietal suture; elongated pineal foramen bounded only by the parietals; posterior border of the parietals strongly incised, forming an angle between posterolateral processes of 110°; posterior process of postorbital at least twice as long as ventral process; medial process of postorbital underlapping lateral process of postfrontal; most of the margin of the supratemporal fenestra formed by parietal and postorbital; maxillary teeth small and pin-like anteriorly, taller and conical posteriorly; heights of posteriormost two maxillary teeth one third the heights of their anterior neighbours; ectopterygoid articulating with the jugal but not with the maxilla. |
Measurements
No measurements are available
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| Source: subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009 | |||||