Tyrannosauroidea, Osborn, 1905
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publication ID |
https://doi.org/ 10.5252/geodiversitas2022v44a25 |
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publication LSID |
urn:lsid:zoobank.org:pub:EA12DCB7-A5BE-4763-B805-25087EBD726D |
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DOI |
https://doi.org/10.5281/zenodo.6928932 |
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persistent identifier |
https://treatment.plazi.org/id/03C887B9-FF9E-FFC0-76D1-A52AFD43FE00 |
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treatment provided by |
Felipe |
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scientific name |
Tyrannosauroidea |
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Tyrannosauroidea indet.
( Fig. 28 View FIG H-J)
DESCRIPTION
There are at least eight teeth with a very characteristic morphology. They are D-shaped in cross-section with the mesial carina lingually displaced ( Fig. 28 View FIG H-J). The mesial margin is only slightly convex. The distal carina is denticulate along its entire length, while the mesial carina is only denticulate on its apical quarter.The denticles extend over the apex. There are 12-13 denticles per 5 mm on mesial and distal carinae. Two longitudinal grooves are present on the lingual side of ANG M-73, below the denticulate mesial carina ( Fig. 28I View FIG ). When preserved, the enamel texture is irregular ( Hendrickx et al. 2015a).
The morphology of these teeth and in particular the lingual offset of the mesial carina are typical of tyrannosauroids ( Holtz 2004). They are very similar to that described in the Bathonian Proceratosaurus bradleyi and the Barremian Eotyrannus ( Hutt et al. 2001; Rauhut et al. 2010). This discovery confirms the presence of Tyrannosauroidea in Europe at the beginning of the Early Cretaceous.
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