The Sânpetru Formation is an early Maastrichtian geologic formation located in Romania, near Sânpetru village, part of Sântămăria-Orlea commune. Dinosaur remains are among the fossils that have been recovered from the formation, comprising some of the fauna of Hațeg Island.Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
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.Solomon & Codrea, 2015, p.26
Fossil content
Amphibians Amphibians of the Sânpetru Formation Genus Species Location Stratigraphic position Abundance Notes Images Albanerpeton Indeterminate Albanerpetontid 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 AllodaposuchusSolomon & Codrea, 2015, p.28 Indeterminate Sabresuchus S. sympiestodon
Ornithischians Ornithischians of the Sânpetru Formation Genus Species Location Stratigraphic position Abundance Notes Images Struthiosaurus"29.3 Judetul Hunedoara, Romania; 1. Sânpetru Formation," in Weishampel, et al. (2004). Pages 592-593. S. transylvanicus Sânpetru A skull and partial skeleton. A nodosaur. TelmatosaurusSolomon & Codrea, 2015, p.30 T. transsylvanicus "[Five to ten] fragmentary skulls, some with associated postcrania, mixed age classes.""Table 20.1," in Weishampel, et al. (2004). Page 439. A small hadrosauromorph. Zalmoxes Z. robustus Many remains Originally identified as a rhabdodontid ornithopod, but possibly a ceratopsian closely related to Ajkaceratops and Ferenceratops Ferenceratops F. shqiperorum Sibișel Valley Upper A left dentary, sacrum, right scapula, right coracoid, partial left ilium, partial right ilium, right ischium, left distal ischium and left femur. Originally "Zalmoxes" shqiperorum but subsequently recognized as a distinct ceratopsian taxon closely related to Ajkaceratops
Sauropods Sauropods of the Sânpetru Formation Genus Species Location Stratigraphic position Abundance Notes ImagesMagyarosaurusM. dacus A dwarf sauropod. Paludititan P. nalatzensis A partial skeleton lacking the skull. A dwarf sauropod Petrustitan P. hungaricus Sibișel River Valley. Upper Partial skeleton composed of caudal vertebrae, right ulna, right radius, right metacarpal, right ilium, and left fibula.A dwarf sauropod, originally assigned to the genus Magyarosaurus
Theropods Theropods of the Sânpetru Formation Genus Species Location Stratigraphic position Material Notes Images Gargantuavis Indeterminate PelvisMayr et al., 2019 Bradycneme B. draculae "Distal tibiotarsus.""Table 9.1," in Weishampel, et al. (2004). Page 185. ElopteryxKessler et al., 2005 E. nopcsai "Fragmentary femur." EuronychodonListed as "cf. Euronychodon sp." in "29.3 Judetul Hunedoara, Romania; 1. Sânpetru Formation," in Weishampel, et al. (2004). Pages 592-593. Indeterminate Heptasteornis H. andrewsi "Distal tibiotarsus.""Table 9.1," in Weishampel, et al. (2004). Page 186. Megalosaurus M. hungaricus "Tooth.""Table 4.1," in Weishampel, et al. (2004). Page 78.
Pterosaurs Pterosaurs reported from the Sânpetru Formation Genus Species Location Stratigraphic position Material Notes Images Eurazhdarcho E.langendorfensis An azhdarchid pterosaur. Hatzegopteryx H.thambema A giant azhdarchid pterosaur.
Mammals Mammals from the Sânpetru Formation Genus Species Location Stratigraphic position Material Notes Images Barbatodon B. transylvanicus Kogaionid Kogaionon K. ungureanui Kogaionid
See also List of fossiliferous stratigraphic units in Romania List of dinosaur-bearing rock formations Hațeg Island
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