Sânpetru Formation Explained
The Sânpetru Formation is an early Maastrichtian geologic formation. Dinosaur remains are among the fossils that have been recovered from the formation.[1] 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.[2]
Fossil content
Amphibians
Turtles
| Turtles of the Sânpetru Formation |
|---|
| Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
|---|
| Kallokibotion | K. bajazidi | | | | | |
| Indeterminate | | | | | |
| Indeterminate | | | | | |
|
Squamates
| Squamates of the Sânpetru Formation |
|---|
| Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
|---|
| Barbatteius | B. vremiri | | | | | |
| Becklesius | B. nopcsai | | | | | |
| Bicuspidon | B. hatzegiensis | | | | | |
| Indeterminate | | | | 5 distinct taxa | |
| Indeterminate | | | | Snake | |
|
Crocodyliformes
Ornithischians
| Ornithischians of the Sânpetru Formation |
|---|
| Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
|---|
| Struthiosaurus[4] | S. transylvanicus | | | A skull and partial skeleton. | A nodosaur. | |
| Telmatosaurus[5] | T. transsylvanicus | | | "[Five to ten] fragmentary skulls, some with associated posctrania, mixed age classes."[6] | A small hadrosauromorph. | |
| Zalmoxes | Z. robustus | | | | A Rhabdodontid ornithopod. | |
| Z. shqiperorum | | | |
|
Sauropods
| Sauropods of the Sânpetru Formation |
|---|
| Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
|---|
| Magyarosaurus | M. dacus | | | | A dwarf sauropod. | |
| M. hungaricus | | | |
| M. transsylvanicus | | | |
| Paludititan[7] | P. nalatzensis | | | | A dwarf sauropod | |
|
Theropods
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 | |
|
See also
References
Bibliography
Notes and References
- Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
- Solomon & Codrea, 2015, p.26
- Solomon & Codrea, 2015, p.28
- "29.3 Judetul Hunedoara, Romania; 1. Sânpetru Formation," in Weishampel, et al. (2004). Pages 592-593.
- Solomon & Codrea, 2015, p.30
- "Table 20.1," in Weishampel, et al. (2004). Page 439.
- Z.. Csiki . V.. Codrea. C. . Jipa-Murzea . P. . Godefroit . 2010 . A partial titanosaur (Sauropoda, Dinosauria) skeleton from the Maastrichtian of Nălaț-Vad, Hațeg Basin, Romania . Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen . 258 . 3 . 297–324 . 10.1127/0077-7749/2010/0098.
- Mayr et al., 2019
- "Table 9.1," in Weishampel, et al. (2004). Page 185.
- Kessler et al., 2005
- Listed as "cf. Euronychodon sp." in "29.3 Judetul Hunedoara, Romania; 1. Sânpetru Formation," in Weishampel, et al. (2004). Pages 592-593.
- "Table 9.1," in Weishampel, et al. (2004). Page 186.
- "Table 4.1," in Weishampel, et al. (2004). Page 78.
