| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Agujaceratops (Aguja horned face)
Taxonomy
Agujaceratops was named by Lucas et al. (2006).
It was assigned to Chasmosaurinae by Lucas et al. (2006), Longrich (2010), Ryan et al. (2010), Maidment and Barrett (2011) and Longrich (2014).
It was assigned to Chasmosaurinae by Lucas et al. (2006), Longrich (2010), Ryan et al. (2010), Maidment and Barrett (2011) and Longrich (2014).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2006 | Agujaceratops Lucas et al. p. 370 |
| 2010 | Agujaceratops Longrich p. 692 fig. 10 |
| 2010 | Agujaceratops Ryan et al. p. 185 |
| 2011 | Agujaceratops Maidment and Barrett p. 2 |
| 2014 | Agujaceratops Longrich p. 303 fig. 8 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
G. †Agujaceratops Lucas et al. 2006 [Aguja horned face]
show all | hide all
†Agujaceratops mariscalensis Lehman 1989
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. G. Lucas et al. 2006 | Diagnosis—Agujaceratops is a large ceratopsid most similar to Chasmosaurus and Pentaceratops. Agujaceratops differs from Chasmosaurus in having a relatively deep facial skeleton (at the orbit, though this varies somewhat ontogenetically), relatively short and broad squamosal (length/width < 2), more than 6 relatively large epoccipitals on the squamosal (though some Chasmosaurus have as many as 9), lacking a parietal median bar that is deep or deeper dorsoventrally than wide with a rectangular/subrectangular cross section and flat lateral sides, lacking a jugal flange that contacts the squamosal below the infratemporal fenestra, having a maxilla without a lateral horizontal shelf and a premaxilla without a posterodorsal extension, having relatively long supraorbital horncores and a relatively deep embayment of the posterior median parietal. Agujaceratops differs from Pentaceratops in being smaller, having a premaxilla septal flange along the entire anterior edge of the naris (as in Chasmosaurus), having a nasal horncore that is not centered above the external naris, having a relatively broader and shorter squamosal and a relatively wide frill with a convex lateral margin, that is widest posteriorly (as in Chasmosaurus), having supraorbital horncores that are curved posteriorly (not anteriorly), a posterior border of the parietal that is flattened and plate-like (rather than square and bar like) and a marked but shallower embayment of the posterior median parietal. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
|
|
||||
| Source: subo = suborder, o = order | |||||
| References: Marsh 1875, Norman and Weishampel 1991 | |||||
Age range: base of the Judithian to the top of the Late/Upper Campanian or 83.50000 to 70.60000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Judithian | USA (Texas) | Chasmosaurus mariscalensis (48941 52462 52463 52464) | |
| Late/Upper Campanian | USA (Texas) | Agujaceratops sp. (94373) | |
| Late/Upper Campanian | Mexico (Chihuahua) | Chasmosaurus mariscalensis (227230) | |
| Middle Campanian - Late/Upper Campanian | USA (Texas) | Chasmosaurus mariscalensis (22709 25073) | |
| Middle Campanian - Late/Upper Campanian | Mexico (Chihuahua) | Chasmosaurus mariscalensis (35353) |