Genus
Valid Extinct

Shamosaurus

Tumanova 1983

Shamosaurus is an extinct genus of herbivorous basal ankylosaurid ankylosaur from Early Cretaceous deposits of Höövör, Mongolia.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
2
Group
Dinosaures
Herbivore Ground dwelling, gregarious Terrestrial
Shamosaurus
click to enlarge
Phylogenetic position of Akainacephalus johnsoni in (A), a strict consensus of 21 equally most parsimonious trees, including the wildcard taxon Ahshislepelta minor, placing A. johnsoni within a large polytomy, consisting of crown group taxa that include Asian and all Laramidian ankylosaurids; and (B), the resulting strict consensus of six equally most phylogenetic trees, from which the wildcard taxon Ahshislepelta minor has been pruned. The crown group taxa are slightly better resolved in the pruned analysis, in which Akainacephalus johnsoni forms a clade with its sister taxon Nodocephalosaurus kirtlandensis, nested within the clade that also includes the Asian taxa Minotaurasaurus ramachandrani, Tarchia kilanae, and Shanxia tianzhenensis, suggesting a close taxonomic relationship with Nodocephalosaurus kirtlandensis and Asian taxa. © Jelle P. Wiersma​, Randall B. Irmis · CC BY-SA 4.0 · Wikimedia
Shamosaurus
Shamosaurus
PBDB ↗ Wikipedia ↗
Classification
Dinosauria Unranked clade
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Ornithischia Unranked clade
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Parapredentata Unranked clade
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Saphornithischia Unranked clade
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Prionodontia Unranked clade
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Genasauria Unranked clade
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Thyreophora Unranked clade
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Thyreophoroidea Superfamily
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Eurypoda Unranked clade
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Ankylosauria Unranked clade
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Euankylosauria Unranked clade
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Ankylosauridae Family
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Shamosaurus Genus
Measurements
Length
4,5 m ⓘ
Shamosaurus scutatus
Mass
1 100 kg ⓘ
Shamosaurus scutatus
Fossil sites 2 geolocated sites
Distribution
Top countries
🇲🇳 Mongolia
2
Geological formations
Dzunbain
2
Temporal distribution
Albian (113.2–100.5 Ma)
1
Aptian (121.4–113.2 Ma)
1
Species (1)
Shamosaurus scutatus 121 Ma
Bibliography
Original description
T. A. Tumanova. 1983. Pervyy ankilozavr iz nizhnego mela Mongolii [The first ankylosaurs from the Lower Cretaceous of Mongolia]. In L. P. Tatarinov, R. Barsbold, E. Vorobyeva, B. Luvsandanzan, B. A. Trofimov, Yu. A. Reshetov, & M. A. Shishkin (eds.), Iskopayemyye reptilii mongolii [Fossil Reptiles of Mongolia]. Trudy Sovmestnaya Sovetsko-Mongol'skaya Paleontologicheskaya Ekspeditsiya 24:110-118
Bibliography (2)
T. A. Tumanova. 1987. Pantsirnyye dinozavry Mongolii [The armored dinosaurs of Mongolia]. Trudy Sovmestnaya Sovetsko-Mongol'skaya Paleontologicheskaya Ekspeditsiya 32:1-80
T. A. Tumanova. 1983. Pervyy ankilozavr iz nizhnego mela Mongolii [The first ankylosaurs from the Lower Cretaceous of Mongolia]. In L. P. Tatarinov, R. Barsbold, E. Vorobyeva, B. Luvsandanzan, B. A. Trofimov, Yu. A. Reshetov, & M. A. Shishkin (eds.), Iskopayemyye reptilii mongolii [Fossil Reptiles of Mongolia]. Trudy Sovmestnaya Sovetsko-Mongol'skaya Paleontologicheskaya Ekspeditsiya 24:110-118