Sânpetru Formation
Sânpetru Formation | |
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Stratigraphic range: Early Maastrichtian ~ | |
Type | Geological formation |
Sub-units | Lower & Upper Members |
Underlies | Miocene deposits |
Overlies | Strei Formation, flysch |
Thickness | 2,500 m (8,200 ft) of which 860 m (2,820 ft) exposed |
Lithology | |
Primary | Mudstone, sandstone |
Other | Conglomerate |
Location | |
Coordinates | 45°36′N 22°54′E / 45.6°N 22.9°ECoordinates: 45°36′N 22°54′E / 45.6°N 22.9°E |
Approximate paleocoordinates | 30°30′N 22°06′E / 30.5°N 22.1°E |
Region | Hunedoara |
Country | Romania |
Extent | Central Hațeg Basin |
Type section | |
Named for | Sânpetru |
The Sânpetru Formation is a early Maastrichtian geologic formation. Dinosaur remains are among the fossils that have been recovered from the formation. It is located in Romania, near Sânpetru village, part of Sântămăria-Orlea commune. It forms a component of the Hațeg Island fauna.
Description
The Sânpetru Formation crops out in the central to southern Hațeg Basin along the Bărbat River and comprises sandstones and mudstones deposited in a wet floodplain environment characterized by braided fluvial channels. The formation is correlated with the Densuș-Ciula Formation of the northern section of the same basin, both dating to the Maastrichtian of the Late Cretaceous.
Fossil content
Amphibians
Amphibians of the Sânpetru Formation | ||||||
---|---|---|---|---|---|---|
Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
Albanerpeton | Indeterminate | Albanerpetonid | ||||
Paralatonia | P. transylvanica | Frog |
Turtles
Turtles of the Sânpetru Formation | ||||||
---|---|---|---|---|---|---|
Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
Kallokibotion | K. bajazidi | |||||
Dortokidae | Indeterminate | |||||
Emydidae | Indeterminate |
Squamates
Squamates of the Sânpetru Formation | ||||||
---|---|---|---|---|---|---|
Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
Barbatteius | B. vremiri | |||||
Becklesius | B. nopcsai | |||||
Bicuspidon | B. hatzegiensis | |||||
Lacertilia | Indeterminate | 5 distinct taxa | ||||
Madtsoiidae | Indeterminate | Snake |
Crocodyliformes
Crocodyliformes of the Sânpetru Formation | ||||||
---|---|---|---|---|---|---|
Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
Allodaposuchus | Indeterminate | |||||
Sabresuchus | S. sympiestodon |
Ornithischians
Ornithischians of the Sânpetru Formation | ||||||
---|---|---|---|---|---|---|
Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
Struthiosaurus | S. transylvanicus | |||||
Telmatosaurus | T. transsylvanicus | "[Five to ten] fragmentary skulls, some with associated posctrania, mixed age classes." | ||||
Zalmoxes | Z. robustus | |||||
Z. shqiperorum |
Sauropods
Sauropods of the Sânpetru Formation | ||||||
---|---|---|---|---|---|---|
Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
Magyarosaurus | M. dacus | |||||
M. hungaricus | ||||||
M. transsylvanicus |
Theropods
Theropods of the Sânpetru Formation | ||||||
---|---|---|---|---|---|---|
Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
Gargantuavis | Indeterminate | Pelvis | ||||
Bradycneme | B. draculae | "Distal tibiotarsus." | ||||
Elopteryx | E. nopcsai | "Fragmentary femur." | ||||
Euronychodon | Indeterminate | |||||
Heptasteornis | H. andrewsi | "Distal tibiotarsus." | ||||
Megalosaurus | M. hungaricus | "Tooth." |
Pterosaurs
Pterosaurs reported from the Sânpetru Formation | ||||||
---|---|---|---|---|---|---|
Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
Eurazhdarcho | E.langendorfensis | |||||
Hatzegopteryx | H.thambema |
Mammals
Mammals from the Sânpetru Formation | ||||||
---|---|---|---|---|---|---|
Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
Barbatodon | B. transylvanicus | Kogaionid | ||||
Kogaionon | K. ungureanui | Kogaionid |
Color key
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Notes Uncertain or tentative taxa are in small text; |