| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Xyrospondylus
Taxonomy
Xyrospondylus was named by Reisz et al. (1982). It is not extant.
It was assigned to Pelycosauria by Reisz (1986); and to Pelycosauria by Reisz et al. (1982) and Carroll (1988).
It was assigned to Pelycosauria by Reisz (1986); and to Pelycosauria by Reisz et al. (1982) and Carroll (1988).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1982 | Xyrospondylus Reisz et al. |
| 1986 | Xyrospondylus Reisz |
| 1988 | Xyrospondylus Carroll |
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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
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Carroll 1988, Hendy et al. 2009 | |||||
Age range: Missourian or 305.90000 to 303.40000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Missourian | USA (Kansas) | Edaphosaurus ecordi, X. ecordi (80784) |