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Cerrejonisuchus
Taxonomy
Cerrejonisuchus was named by Hastings et al. (2010). It was considered monophyletic by Hastings et al. (2010).
It was assigned to Dyrosauridae by Hastings et al. (2010) and Bronzati et al. (2012); and to Dyrosauridae by Jouve et al. (2021).
It was assigned to Dyrosauridae by Hastings et al. (2010) and Bronzati et al. (2012); and to Dyrosauridae by Jouve et al. (2021).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2010 | Cerrejonisuchus Hastings et al. |
| 2012 | Cerrejonisuchus Bronzati et al. |
| 2021 | Cerrejonisuchus Jouve et al. |
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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.
G. †Cerrejonisuchus Hastings et al. 2010
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†Cerrejonisuchus improcerus Hastings et al. 2010
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Hastings et al. 2010 | As for type species: "Shorter snout, approximately 54–59% of the dor- sal skull length, than that of all other known dyrosaurids. Also differs from all other dyrosaurids in having approxi- matly 11 teeth in each maxillary, 8 of which are anterior to the orbits. Further differs from all known dyrosaurids ex- cept Chenanisuchus in having a wide interfenestral bar that is square-shaped in cross-section. Further differs from all other dyrosaurids except Phosphatosaurus (and possibly Aram- bourgisuchus) in having a reduced fourth premaxillary tooth. Further differs from Phosphatosaurus and Sokotosuchus in lacking a ‘festooned’ lateral margin of the snout in dorsal view. Further differs from Hyposaurus, Rhabdognathus, Atlanto- suchus, and Guarinisuchus in having a mediolaterally straight posterodorsal margin of the parietal. Further differs from Chenanisuchus and Sokotosuchus in having well-developed oc- cipital tuberosities. Further differs from Chenanisuchus in hav- ing ornamentation continuous across dorsal and lateral surfaces with no interruption across sutures and orbits medially and dor- sally placed, most closely approximating the orbit position of Dyrosaurus. Further differs from Hyposaurus rogersii in having teeth with straight, rather than twisted anterior carinae." Hastings et al. (2010): 141 |
Measurements
No measurements are available
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| Source: subo = suborder, c = class, subp = subphylum, uc = unranked clade | |||||
| References: Hendy et al. 2009, Carroll 1988, Benton 1983, Bush and Bambach 2015 | |||||
Age range: base of the Middle Paleocene to the top of the Late/Upper Paleocene or 61.70000 to 55.80000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Paleocene - Late/Upper Paleocene | Colombia (Guajira) | C. improcerus (106271) |