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Tarchia
Taxonomy
Tarchia was named by Maryanska (1977). Its type is Tarchia kielanae. It was considered monophyletic by Vickaryous et al. (2004).
It was assigned to Nodosauridae by Tumanova (1977) and Tumanova (1978); to Syrmosaurinae by Ford (2000); to Ankylosauridae by Maryanska (1977), Carroll (1988), Barsbold (1997), Kirkland (1998), Tumanova (2000), Carpenter (2001), Parsons and Parsons (2009), Longrich et al. (2010), Arbour et al. (2012), Arbour et al. (2013) and Arbour et al. (2014); and to Ankylosaurinae by Tumanova (1983), Sereno (1986), Tumanova (1987), Vickaryous et al. (2001), Vickaryous et al. (2004), Han et al. (2014), Arbour et al. (2014), Arbour and Currie (2016), Yang et al. (2017), Penkalski and Tumanova (2017) and Park et al. (2021).
It was assigned to Nodosauridae by Tumanova (1977) and Tumanova (1978); to Syrmosaurinae by Ford (2000); to Ankylosauridae by Maryanska (1977), Carroll (1988), Barsbold (1997), Kirkland (1998), Tumanova (2000), Carpenter (2001), Parsons and Parsons (2009), Longrich et al. (2010), Arbour et al. (2012), Arbour et al. (2013) and Arbour et al. (2014); and to Ankylosaurinae by Tumanova (1983), Sereno (1986), Tumanova (1987), Vickaryous et al. (2001), Vickaryous et al. (2004), Han et al. (2014), Arbour et al. (2014), Arbour and Currie (2016), Yang et al. (2017), Penkalski and Tumanova (2017) and Park et al. (2021).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1977 | Tarchia Maryanska pp. 98, 105, 108 |
| 1977 | Tarchia Tumanova p. 92 |
| 1978 | Tarchia Tumanova p. 480 |
| 1983 | Tarchia Tumanova p. 110 |
| 1986 | Tarchia Sereno |
| 1987 | Tarchia Tumanova p. 22 |
| 1988 | Tarchia Carroll |
| 1997 | Tarchia Barsbold p. 450 |
| 1998 | Tarchia Kirkland p. 273 fig. 3 |
| 2000 | Tarchia Ford p. 176 |
| 2000 | Tarchia Tumanova p. 527 |
| 2001 | Tarchia Carpenter p. 457 |
| 2001 | Tarchia Vickaryous et al. p. 1774 |
| 2004 | Tarchia Vickaryous et al. p. 364 |
| 2009 | Tarchia Parsons and Parsons p. 736 fig. 18 |
| 2010 | Tarchia Longrich et al. p. 955 |
| 2012 | Tarchia Arbour et al. p. 56 |
| 2013 | Tarchia Arbour et al. |
| 2014 | Tarchia Arbour et al. p. 11 fig. 6 |
| 2014 | Tarchia Arbour et al. |
| 2014 | Tarchia Han et al. p. 14 fig. 11 |
| 2016 | Tarchia Arbour and Currie p. 414 |
| 2017 | Tarchia Penkalski and Tumanova |
| 2017 | Tarchia Yang et al. p. 786 fig. 5 |
| 2021 | Tarchia Park 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.
G. †Tarchia Maryanska 1977
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†Tarchia kielanae Maryanska 1977
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Invalid names: Minotaurasaurus ramachandrani Miles and Miles 2009 [synonym]
†Tarchia teresae Penkalski and Tumanova 2017
†Tarchia tumanovae Park et al. 2021
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| T. A. Tumanova 1978 | A large ankylosaur with laterally directed postorbital spines and with a weakly developed secondary bony palate; choanae located on anterior part of palate. Occipital condyle posteroventrally directed, large occipital foramen extended along the vertical axis, occipital part of skull and occipital condyle visible from above, paroccipital processes perpendicular to calvaria; upper ends of quadrates adjoining paroccipital processes. Quadrate inclined, articulation of jaw on a level with the posterior margin of the orbit. Maximum width of premaxillary part equal to distance between posterior ends of maxillaries. | |
| T. A. Tumanova 1987 | Premaxillary part of beak oval in shape, width equal to distance between rear maxillary teeth (fig. 3); anterior and posterior maxillary shelves well developed; plane of palatal bone raised horizontally; anterior wall of pterygoids inclined forwards; plane of occiput slightly inclined posteriorly; occipital condyle widely oval with articular area slightly projecting and oriented posteroventrally; paroccipital process high, short, perpendicular to skull roof; quadrate and paroccipital process not fused; maxillary condyle of quadrate on level of rear border of orbit; ventral surface of basioccipital without distinct relief. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Marsh 1875 | |||||
Age range: base of the Maastrichtian to the top of the Late/Upper Campanian or 72.10000 to 70.60000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Campanian - Late/Upper Campanian | Mongolia (Omnogov) | Ankylosauridae indet. (181421) | |
| Maastrichtian | Mongolia (Omnogov) | Ankylosauria indet. (55258) Dyoplosaurus giganteus (179625) T. tumanovae (226994) |