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Qantassaurus intrepidus
Taxonomy
Qantassaurus intrepidus was named by Rich and Vickers-Rich (1999). Its type specimen is NMV P199075, a mandible, and it is a 3D body fossil. Its type locality is Flat Rocks, Bunurong Marine Park, which is in an Aptian fluvial sandstone/conglomerate in the Wonthaggi Formation of Australia. It is the type species of Qantassaurus.
Synonymy list
| Year | Name and author |
|---|---|
| 1999 | Qantassaurus intrepidus Kool et al. p. 13 |
| 1999 | Qantassaurus intrepidus Rich and Vickers-Rich p. 173 figs. 8-9 |
| 2000 | Qantassaurus intrepidus Kool et al. p. 5 |
| 2004 | Qantassaurus intrepidus Norman et al. p. 395 |
| 2006 | Qantassaurus intrepidus Scanlon p. 280 |
| 2008 | Qantassaurus intrepidus Hocknull and Cook p. 212 |
| 2010 | Qantassaurus intrepidus Agnolin et al. pp. 266-267 fig. 5 |
| 2011 | Qantassaurus intrepidus Romilio and Salisbury p. 140 |
| 2016 | Qantassaurus intrepidus Dieudonné et al. p. 30 |
| 2018 | Qantassaurus intrepidus Bell et al. p. 2 |
| 2018 | Qantassaurus intrepidus Herne et al. p. 2 |
| 2019 | Qantassaurus intrepidus Herne et al. p. 562–563 |
| 2021 | Qantassaurus intrepidus Duncan et al. p. 2 |
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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.
†Qantassaurus intrepidus Rich and Vickers-Rich 1999
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. C. Herne et al. 2019 | Small-bodied ornithopod characterized by acombination of six eatures, including three potential autapomorphies (*): (1*) dentary markedly foreshortened (ratio of greatest dorsoventral height from ventral margin to alveolar margin/total tooth row length ≅ 0.6); (2*) dorsoventral depth of the lateral alveolar parapet higher than the portion of dentary ramus ventral to the buccal ridge (ratio of alveolar parapet height/height ventrally to buccal ridge≅1.8); (3*) line of the buccal ridge deeply concave and offset ventrally relative to the line of the coronoid ridge; (4) level of the lateral alveolar parapet markedly elevated relative to the coronoid ridge and shelf; (5) occlusal margin on the dentary teeth markedly convex; and (6) ventral margin of the dentary ramus convex over its length as far as the symphyseal margin. (Amended from the original work of Rich and Vickers-Rich,1999). |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Marsh 1875, Benton 1983 | |||||
Age range: Late/Upper Aptian or 122.46000 to 113.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Aptian | Australia (Victoria) | Qantassaurus intrepidus, Hypsilophodontidae indet. (type locality: 51961) |