Amurosaurus riabinini Bolotsky and Kurzanov, 1991
publication ID |
https://doi.org/ 10.5281/zenodo.13522956 |
persistent identifier |
https://treatment.plazi.org/id/A24A9A3C-E535-FFAD-3E07-F9D7FAF1FE68 |
treatment provided by |
Felipe |
scientific name |
Amurosaurus riabinini Bolotsky and Kurzanov, 1991 |
status |
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Amurosaurus riabinini Bolotsky and Kurzanov, 1991
Holotype: AEHM 1 /12, associated left maxilla and dentary.
Type locality: Upper part of Nagornaia Street, west of Blagoveschensk City, Amur Region, Russia.
Type horizon: Udurchukan Formation ( Wodehouseia spinata – Aquilapollenites subtilis palynozone), “middle”–late Maastrichtian, Late Cretaceous.
Emended specific diagnosis.— Lambeosaurine dinosaur characterised by the following autapomorphies: prominent median process between basipterygoid processes; sagittal crest particularly elevated on the caudal part of the parietal and forming a high, triangular and deeply excavated triangular process on the occipital aspect of the skull; squamosals separated from each other by this crest along their entire height; caudal process of postorbital particularly elongated, narrow, and regularly convex upwardly; prefrontal forming at least half of the width of the floor for the supracranial crest; ulna and radius sigmoidal both in lateral and in cranial views.
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