| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Shamosaurus scutatus
Taxonomy
Shamosaurus scutatus was named by Tumanova (1983). Its type specimen is PIN 3779/2, a partial skeleton (skull and partial postcranial skeleton), and it is a 3D body fossil. Its type locality is Chamrin-Us (PIN coll. 3779) [SMPE], which is in an Aptian/Albian fluvial-lacustrine claystone/sandstone in the Dzunbain Formation of Mongolia. It is the type species of Shamosaurus. It was considered monophyletic by Vickaryous et al. (2004).
Synonymy list
| Year | Name and author |
|---|---|
| 1983 | Shamosaurus scutatus Tumanova |
| 1986 | Shamosaurus scutatus Tumanova p. 75 |
| 1987 | Shamosaurus scutatus Tumanova p. 23 |
| 1997 | Shamosaurus scutatus Barsbold p. 450 |
| 1997 | Shamosaurus scutatus Vickaryous and Ryan p. 491 |
| 2000 | Shamosaurus scutatus Ford p. 176 |
| 2000 | Shamosaurus scutatus Tumanova p. 519 |
| 2001 | Shamosaurus scutatus Carpenter p. 457 |
| 2001 | Shamosaurus scutatus Carpenter et al. p. 234 |
| 2001 | Shamosaurus scutatus Vickaryous et al. p. 1775 |
| 2004 | Shamosaurus scutatus Vickaryous et al. p. 364 |
| 2010 | Shamosaurus scutatus Amiot et al. p. 353 |
| 2011 | Shamosaurus scutatus Carpenter et al. p. 2 |
| 2013 | Shamosaurus scutatus Kirkland et al. p. 5 |
| 2014 | Shamosaurus scutatus Han et al. p. 14 fig. 11 |
| 2016 | Shamosaurus scutatus Arbour and Currie p. 404–405 |
| 2018 | Shamosaurus scutatus Tumanova and Alifanov p. 1771 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
†Shamosaurus scutatus Tumanova 1983
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| T. A. Tumanova 1987 | Upper portion of premaxillary bones covered with osteoderms. Occipital condyle projects to end of skull roof.
| |
| V. M. Arbour and P. J. Currie 2016 | Differs from all other ankylosaurs in the following combination of characters: rugose, amorphous frontonasal ornamentation not subdivided into distinct caputegulae; longitudinal groove on dorsal surface of premaxillary beak (also in Shamosaurus); squamosal horns shorter and more rounded than in Crichtonpelta; quadratojugal horn has centrally located apex, unlike Crichtonpelta; no prominences on nuchal crest, unlike Crichtonpelta; tooth row longer relative to overall skull length than in Gobisaurus (26.7% in Gobisaurus, 40% in Shamosaurus); anterior surface of pterygoid slopes anteroventrally, unlike vertical surface in Gobisaurus. |
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
|
|
||||
| Source: o = order | |||||
| Reference: Marsh 1875 | |||||
Age range: base of the Late/Upper Aptian to the top of the Early/Lower Albian or 122.46000 to 109.00000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aptian - Albian | Mongolia (Dornogov) | Ankylosauria indet. (type locality: 32362) | |
| Late/Upper Aptian - Early/Lower Albian | Mongolia (Övörkhangai Aymag) | Shamosaurus scutatus (77191) |