| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Tianyusaurus zhengi
Taxonomy
Tianyusaurus zhengi was named by Lü et al. (2008). Its type specimen is Shandong Tianyu Natural Museum 05-f702, a partial skeleton (skull and mandible articulated with the first eight cervical vertebrae and the nearly complete pectoral girdles), and it is a 3D body fossil. Its type locality is Qiupa, Luanchuan Basin, which is in a Maastrichtian fluvial-lacustrine mudstone/conglomerate in the Qiupa Formation of China. It is the type species of Tianyusaurus.
Synonymy list
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.
†Tianyusaurus zhengi Lü et al. 2008
show all | hide all
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. -Y. Mo et al. 2010 | A large squamate, with a maximum midline skull length over 87 mm,which resembles other boreoteiioid squamates (sensu Nydam et al. 2007) in having vomers and pterygoids meeting in the palatal midline; suborbital fenestra reduced by expansion of the ectopterygoid; no palatal dentition; well developed pterygoid lappet on quadrate; large medially directed adductor fossa; deep vertical pterygoid flanges; clavicle greatly expanded with fenestrate medial end. Resembles many Asian boreoteiioids in having postcaniniform teeth labiolingually compressed and multicuspid; resembles Gilmoreteius, Tuberocephalosaurus and Aprisaurus (Alifanov 2000) in having enlarged maxillary caniniform teeth. Differs from other boreoteiioids and all other squamates in the following combination of derived characters: long posterior process of jugal forming complete lower temporal bar; tympanic crest of quadrate rugose with expanded anteroventral margin; deep fixed quadrate–pterygoid overlap; squamosal and supratemporal fused or partially fused and firmly attached to quadrate dorsal condyle; premaxilla excluded from ventral narial margin by expanded anterior maxillary process; upper temporal fenestra small; lower temporal fenestra and post-temporal fenestra large; lower jaw relatively shallow so that the deep vertical pterygoid flange extends below the lower margin of the closed mandible. |
Measurements
No measurements are available
|
|
||||
|
|||||
|
|
||||
| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Hendy et al. 2009, Carroll 1988 | |||||
Age range: Late/Upper Maastrichtian or 70.60000 to 66.00000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Maastrichtian | China (Jiangxi) | Tianyusaurus zhengi (114966) | |
| Late/Upper Maastrichtian | China (Henan) | Tianyusaurus zhengi (type locality: 84996) |