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Leptorhynchos
Taxonomy
Leptorhynchos was named by Longrich et al. (2013). Its type is Ornithomimus elegans.
It was assigned to Caenagnathinae by Longrich et al. (2013) and Longrich et al. (2013); to Elmisaurinae by Funston et al. (2016); and to Caenagnathidae by Lamanna et al. (2014), Lü et al. (2015), Tsuihiji et al. (2015), Funston and Currie (2016) and Tsuihiji et al. (2017).
It was assigned to Caenagnathinae by Longrich et al. (2013) and Longrich et al. (2013); to Elmisaurinae by Funston et al. (2016); and to Caenagnathidae by Lamanna et al. (2014), Lü et al. (2015), Tsuihiji et al. (2015), Funston and Currie (2016) and Tsuihiji et al. (2017).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2013 | Leptorhynchos Longrich et al. p. 31 |
| 2014 | Leptorhynchos Lamanna et al. p. 10 fig. 6 |
| 2015 | Leptorhynchos Lü et al. |
| 2015 | Leptorhynchos Tsuihiji et al. p. 61 |
| 2016 | Leptorhynchos Funston and Currie p. 14 |
| 2017 | Leptorhynchos Tsuihiji et al. p. 10 |
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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. †Leptorhynchos Longrich et al. 2013
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†Leptorhynchos elegans Parks 1933
†Leptorhynchos gaddisi Longrich et al. 2013
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| N. R. Longrich et al. 2013 | Small caenagnathid. Dentary short and deep, with tip of dentary upturned in lateral view. Four symphyseal ridges. Short caudal symphyseal shelf. Dentary contributes to dorsal margin of external mandibular fenestra. Dentaries strongly divergent, with posterior rami of dentaries forming an angle of roughly 35° in dorsal view. | |
| N. R. Longrich et al. 2013 | Small caenagnathid. Dentary short and deep, with tip of dentary upturned in lateral view. Four symphyseal ridges. Short caudal symphyseal shelf. Dentary contributes to dorsal margin of external mandibular fenestra. Dentaries strongly divergent, with posterior rami of dentaries forming an angle of roughly 35° in dorsal view. |
Measurements
No measurements are available
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| Source: infrao = infraorder, o = order | |||||
| References: Marsh 1875, Averianov and Yarkov 2004 | |||||
Age range: base of the Late/Upper Campanian to the top of the Late/Upper Maastrichtian or 83.50000 to 66.00000 Ma
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Judithian | USA (Texas) | L. gaddisi (14489) | |
| Late/Upper Campanian | Canada (Alberta) | L. elegans (22656 232131 232132 232133 232136) | |
| Late/Upper Campanian | USA (Montana) | Caenagnathus sternbergi (59373) | |
| Late/Upper Campanian | USA (Texas) | L. gaddisi (143522) | |
| Late/Upper Maastrichtian | Canada (Saskatchewan) | L. sp. (232129 232130) |