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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Chaoceratodus
Taxonomy
Chaoceratodus was named by Apesteguia et al. (2007). It is not extant. Its type is Chaoceratodus portezuelensis.
It was assigned to Ceratodontiformes by Apesteguia et al. (2007); and to Ceratodontidae by Panzeri (2023).
It was assigned to Ceratodontiformes by Apesteguia et al. (2007); and to Ceratodontidae by Panzeri (2023).
Species
C. portezuelensis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2007 | Chaoceratodus Apesteguia et al. |
| 2023 | Chaoceratodus Panzeri p. 147 |
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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. †Chaoceratodus Apesteguia et al. 2007
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†Chaoceratodus portezuelensis Apesteguia et al. 2007
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. Apesteguia et al. 2007 | Small sized. Upper tooth plates with four ridge crests, being the second the smallest. A non-sculptured tubercle is present on the labial side of each ridge crest and midway up the first. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Late/Upper Turonian to the top of the Early/Lower Coniacian or 93.50000 to 85.80000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Turonian - Early/Lower Coniacian | Argentina (Neuquén) | C. portezuelensis (75050) |