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Chilesaurus diegosuarezi
Taxonomy
Chilesaurus diegosuarezi was named by Novas et al. (2015). Its type specimen is Servicio Nacional de Geologı´a y Minerı´a, Chile (SNGM)- 1935, a skeleton (nearly complete, articulated skeleton, approximately 1.6 m long), and it is a 3D body fossil. Its type locality is Aysén, which is in a Tithonian fluvial-deltaic sandstone in the Toqui Formation of Chile. It is the type species of Chilesaurus.
Synonymy list
| Year | Name and author |
|---|---|
| 2015 | Chilesaurus diegosuarezi Novas et al. |
| 2015 | Chilesaurus diegosuarezi Salgado et al. p. 418 |
| 2016 | Chilesaurus diegosuarezi Serrano-Martínez et al. p. 404 |
| 2020 | Chilesaurus diegosuarezi Dieudonné 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.
†Chilesaurus diegosuarezi Novas et al. 2015
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. E. Novas et al. 2015 | Chilesaurus differs from other dinosaurs in the following combination of autapomorphies: premaxilla short and deep, with prominent plate-like postnarial process; teeth leaf-shaped, being finely denticulate only on the crown apex of erupting teeth; coracoid sub-quadrangular in side view and with transversely thick margins; manual digit II with short pre-ungual phalanges; manual digit III atrophied; iliac blade with posterodorsal prominence; ischiadic peduncle of ilium robust; supracetabular crest absent; pubis fully retroverted; pubic shaft rod-like and distally unexpanded; femoral mediodistal crest absent; tibia without fibular crest. In addition, Chilesaurus shows the following unique combination of characters: dentary deeper anteriorly than posteriorly; cervicals with septate and paired pleurocoels; pubic apron transversely narrow; ischia connected through a proximodistally extended medial lamina (‘ischial apron’); femoral greater trochanter anteroposteriorly expanded, astragalar ascending process lower than astragalar body; calcaneum subtriangular in distal view; metatarsal I robust, elongate, and proximally compressed transversely; metatarsal II transversely wider than the other metatarsals; pedal digit I large. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Marsh 1875 | |||||