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Tianyulong confuciusi
Taxonomy
Tianyulong confuciusi was named by Zheng et al. (2009). Its type specimen is STMN 26-3, a partial skeleton (incomplete skeleton preserving partial skul and mandible and filamentous integumentary structures), and it is a compression preserving soft parts. Its type locality is Daxishan, Linglongta, which is in a Bathonian/Kimmeridgian lacustrine sandstone/mudstone in the Tiaojishan Formation of China.
Synonymy list
| Year | Name and author |
|---|---|
| 2009 | Tianyulong confuciusi Zheng et al. p. 333 figs. 1-2 |
| 2012 | Tianyulong confuciusi Han et al. p. 1391 fig. 14 |
| 2012 | Tianyulong confuciusi Sereno p. 52 |
| 2012 | Tianyulong confuciusi Zheng et al. p. 208 |
| 2016 | Tianyulong confuciusi Becerra et al. p. 557 |
| 2016 | Tianyulong confuciusi Hübner p. 323 |
| 2018 | Tianyulong confuciusi Becerra and Ramírez p. 509 |
| 2018 | Tianyulong confuciusi Madzia et al. p. 969 |
| 2020 | Tianyulong confuciusi Dieudonné et al. |
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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.
†Tianyulong confuciusi Zheng et al. 2009
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| X.-T. Zheng et al. 2009 | A heterodontosaurid dinosaur distinguishable from other species in having a semi-circular diastema, a barely developed buccal emargination, a dorsally placed mandibular jaw joint well above the level of the dentary tooth row, only one premaxillary tooth (which is caniniform), a distinct gap between the dentary teeth and coronoid process, caudally increasing tooth sizes, and adjacent maxillary and dentary tooth crowns distinctly separate and lacking mesial and distal marginal denticles and ridges on the buccal surfaces.
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| P. C. Sereno 2012 | Heterodontosaurid with (1) only two premaxillary teeth, (2) rectangular dentary ramus with parallel dorsal and ventral margins, (3) extremely re- duced forelimb that is less than 30% the length of the hindlimb, (4) manual digit III and metacarpal 3 shorter than manual digit II and metacarpal 2, respectively, (5) tail increased in length, (6) subtriangular chevrons in mid caudal vertebrae, and (7) numerous parallel ossified epaxial and hypaxial ossified tendons in the mid and distal regions of the tail. |
Measurements
No measurements are available
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| Source: o = order | |||||
| References: Marsh 1875, Kiessling 2004 | |||||
Age range: base of the Late/Upper Bathonian to the top of the Early/Lower Kimmeridgian or 168.20000 to 152.21000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Bathonian - Early/Lower Kimmeridgian | China (Liaoning) | Tianyulong confuciusi (type locality: 92421) |