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Medusaceratops
Taxonomy
Medusaceratops was named by Ryan et al. (2010). Its type is Medusaceratops lokii.
It was assigned to Chasmosaurinae by Ryan et al. (2010) and Maidment and Barrett (2011).
It was assigned to Chasmosaurinae by Ryan et al. (2010) and Maidment and Barrett (2011).
Species
M. lokii (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2010 | Medusaceratops Ryan et al. p. 182 |
| 2011 | Medusaceratops Maidment and Barrett p. 3 |
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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 | |
|---|---|---|
| M. J. Ryan et al. 2010 | Chasmosaurine ceratopsid with only three epiparietals (P1-3) on the lateral parietal ramus: wide-based, pachyostotic, dorsoventrally depressed, curved processes at the posterolateral and lateral margin that are large (P1) and small (P2), respectively, and; P3 small, unmodified, dorsoventrally depressed, triangular epiparietal adjacent to the squamosal contact. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Marsh 1875, Norman and Weishampel 1991 | |||||
Age range: Middle Campanian or 83.50000 to 70.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Campanian | USA (Montana) | M. lokii (69152) |