Khuren Dukh Formation | |
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Stratigraphic range: Early Cretaceous (Aptian–Albian),[1] | |
Type | Geological formation |
Sub-units | Lower, Middle & Upper Members |
Underlies | Terrace deposit, Basalt |
Overlies | Khalzan Uul Formation, Basement |
Thickness | Over 100 m (330 ft) |
Lithology | |
Primary | Sandstone, conglomerate, siltstone, mudstone |
Location | |
Coordinates | 45°54′N 108°24′E / 45.9°N 108.4°E |
Approximate paleocoordinates | 49°18′N 100°12′E / 49.3°N 100.2°E |
Region | Dornogovi Province |
Country | Mongolia |
Extent | Choyr Basin |
The Khuren Dukh Formation, also known as the Khukhtyk Formation, Khukhteeg Formation, or Hühteeg Svita, (Mongolian: Хөхтээг формаци, Khökhteeg Formatsi), is a geological formation in Mongolia whose strata date back to the Aptian–Albian ages of the Early Cretaceous.[2][3] Dinosaur remains are among the fossils that have been recovered from the formation.[4]
Dinosaurs of the Khuren Dukh Formation (Hühteeg Svita) | ||||||
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Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
Altirhinus | A. kurzanovi | "Complete skull, partial skull, associated postcrania, several individuals."[5] | A hadrosauroid ornithopod | |||
Choyrodon[6] | C. barsboldi | Partial skull, cervical ribs | A hadrosauroid ornithopod | |||
Iguanodon | I. orientalis | An indeterminate Iguanodont. A referred skull was reclassified as Altirhinus. | ||||
Harpymimus[7] | H. okladnikovi | Partial skeleton | An ornithomimosaur |
Choristoderes of the Khuren Dukh Formation (Hühteeg Svita) | ||||||
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Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
Khurendukhosaurus | K. orlovi, Indeterminate | Partial skeleton | Long-necked choristodere | |||
Tchoiria | T. namsarai | Crocodile-like neochoristoderan. |
Color key
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Notes Uncertain or tentative taxa are in small text; |