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Nanuqsaurus hoglundi
Taxonomy
Nanuqsaurus hoglundi was named by Fiorillo and Tykoski (2014). Its type specimen is DMNH 21461, a partial skull (disarticulated parts of a skull including a piece of the ascending ramus (= nasal process, dorsal process) of the right maxilla, partial skull roof including pa), and it is a 3D body fossil. Its type locality is Kikak-Tegoseak Quarry, which is in a Maastrichtian delta plain siltstone/sandstone in the Prince Creek Formation of Alaska. It is the type species of Nanuqsaurus.
Synonymy list
Year | Name and author |
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2014 | Nanuqsaurus hoglundi Fiorillo and Tykoski p. 3 figs. 3-5 |
2016 | Nanuqsaurus hoglundi Mori et al. p. 29 |
2017 | Nanuqsaurus hoglandii Carr et al. p. 9s |
2018 | Nanuqsaurus hoglundi McDonald 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.
†Nanuqsaurus hoglundi Fiorillo and Tykoski 2014
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Diagnosis
Reference | Diagnosis | |
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A. R. Fiorillo and R. S. Tykoski 2014 | A small (estimated skull length 600 mm–700 mm in mature individuals) tyrannosaurine theropod diagnosed by the following characters: thin, rostrally-forked, median spur of the fused parietals on the dorsal skull roof that overlaps and separates the frontals within the sagittal crest; frontal with a long, rostrally-pointed process separating the prefrontal and lacrimal facets; first two dentary teeth/alveoli much smaller (measured as maximum mesiodistal length) than dentary teeth/alveoli 3 through 9 in mature individuals, such that the mesiodistal length of alveolus 1 is less than 35 percent that of alveolus 3 and 25 percent or less that of alveolus 4, and such that the mesiodistal length of alveolus 2 is less than 50 percent that of alveolus 3 and 33 percent or less that of alveolus 4. |
Measurements
No measurements are available
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Source: subo = suborder, o = order | |||||
References: Marsh 1875, Benton 1983 |
Age range: Early/Lower Maastrichtian or 70.60000 to 66.00000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
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Early/Lower Maastrichtian | USA (Alaska) | Tyrannosauridae indet. (type locality: 51889) |