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Eilenodontinae
Taxonomy
Eilenodontinae was named by Rasmussen and Callison (1981).
It was assigned to Sphenodontidae by Rasmussen and Callison (1981), Simon and Kellner (2003); and to Opisthodontia by Apesteguía and Novas (2003), Apesteguia et al. (2012), Herrera-Flores et al. (2018).
It was assigned to Sphenodontidae by Rasmussen and Callison (1981), Simon and Kellner (2003); and to Opisthodontia by Apesteguía and Novas (2003), Apesteguia et al. (2012), Herrera-Flores et al. (2018).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1981 | Eilenodontinae Rasmussen and Callison p. 1110 |
| 2003 | Eilenodontinae Apesteguía and Novas |
| 2003 | Eilenodontinae Simon and Kellner p. 1 |
| 2012 | Eilenodontinae Apesteguia et al. |
| 2018 | Eilenodontinae Herrera-Flores 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.
Subfm. †Eilenodontinae Rasmussen and Callison 1981
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G. †Kaikaifilusaurus Simon and Kellner 2003
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†Kaikaifilusaurus calvoi Simon and Kellner 2003
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Invalid names: Priosphenodon avelasi Apesteguía and Novas 2003 [synonym]
†Kaikaifilusaurus minimus Apesteguia and Carballido 2014
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| T. E. Rasmussen and G. Callison 1981 | A subfamily of Sphenodontidae with cheek teeth much wider than long. Two distinct wear facets (lateral and medial) formed on tooth row. Tooth wear facets on lateral side of tooth row almost vertical on posterior teeth but slightly more horizontal anteriorly. Tooth wear facets on medial side of tooth row closer to horizontal, becoming more horizontal anteriorly, then becoming more vertical near mandibular symphysis. Surface for articulation of mandible to quadrate formed by prearticular and articular. Mandible deep (in dorsoventral dimension). Dentary deep; well exposed below angular on medial surface of mandible; extends almost to posterior terminus of mandible. |
Measurements
No measurements are available
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| Source: subc = subclass, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Carroll 1988 | |||||
Age range: base of the Tithonian to the top of the Early/Lower Cenomanian or 152.10000 to 93.50000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kimmeridgian - Tithonian | USA (Colorado) | Eilenodon sp. (48165) Rhynchocephalia indet. (137733) | |
| Late/Upper Kimmeridgian - Early/Lower Tithonian | USA (Colorado) | Eilenodon sp. (53021) | |
| Tithonian | USA (Colorado) | Eilenodon sp. (53040 177145) Sphenodontidae indet. (53041) | |
| Valanginian | USA (Utah) | Toxolophosaurus sp. (27017) | |
| Aptian - Albian | USA (Montana) | Toxolophosaurus cloudi (85072) | |
| Late/Upper Aptian | Argentina (Chubut) | Priosphenodon minimus (154711 154712) | |
| Early/Lower Cenomanian | Argentina (Río Negro) | Priosphenodon avelasi (225915) | |
| Early/Lower Cenomanian | Argentina (Neuquén) | Kaikaifilusaurus calvoi (118103) | |
| Middle Cenomanian - Early/Lower Turonian | Argentina (Río Negro) | Kaikaifilusaurus sp., Patagosphenos wataku (180530) |