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Eilenodon
Taxonomy
Eilenodon was named by Rasmussen and Callison (1981). Its type is Eilenodon robustus.
It was assigned to Sphenodontidae by Reynoso (2000); to Rhynchocephalia by Rauhut et al. (2012); to Opisthodontia by Cau et al. (2014); and to Eilenodontinae by Rasmussen and Callison (1981), Apesteguía and Novas (2003), Apesteguia et al. (2012), Herrera-Flores et al. (2018).
It was assigned to Sphenodontidae by Reynoso (2000); to Rhynchocephalia by Rauhut et al. (2012); to Opisthodontia by Cau et al. (2014); and to Eilenodontinae by Rasmussen and Callison (1981), Apesteguía and Novas (2003), Apesteguia et al. (2012), Herrera-Flores et al. (2018).
Species
E. robustus (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1981 | Eilenodon Rasmussen and Callison pp. 1111-1112 figs. 1-4 |
| 2000 | Eilenodon Reynoso |
| 2003 | Eilenodon Apesteguía and Novas |
| 2012 | Eilenodon Apesteguia et al. |
| 2012 | Eilenodon Rauhut et al. |
| 2014 | Eilenodon Cau et al. |
| 2018 | Eilenodon 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.
G. †Eilenodon Rasmussen and Callison 1981
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†Eilenodon robustus Rasmussen and Callison 1981
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| T. E. Rasmussen and G. Callison 1981 | Tooth implantation acrodont with new tooth addition at rear of tooth row just medial to low coronoid process. No evidence of replacement of preexisting teeth. Unworn cheek teeth with lateral crest and medial crest, and only slightly concave anteriorly. Bases and lower parts of crowns of teeth packed closely together. From posterior to anterior, tooth row curves slightly laterally then straightens toward mandibular symphysis. Dentary, surangular, articular and coronoid exposed on lateral surface of mandible. Mandibular foramen directed anteromedially from lateral surface of mandible. Articular surface of mandible, formed by articular and prearticular triangular when viewed from above; apex of triangle directed anteriorly |
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 Tithonian or 152.10000 to 145.00000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kimmeridgian - Tithonian | USA (Colorado) | E. sp. (48165) Rhynchocephalia indet. (137733) | |
| Late/Upper Kimmeridgian - Early/Lower Tithonian | USA (Colorado) | E. sp. (53021) | |
| Tithonian | USA (Colorado) | E. sp. (53040 177145) Sphenodontidae indet. (53041) |