Genus
Valid Extinct

Magyarosaurus

Huene 1932

Magyarosaurus is a genus of dwarf sauropod dinosaur from late Cretaceous Period in today's Transylvania. It is one of the smallest-known adult sauropods, measuring less than 3 m (9.8 ft) meters long and weighing less than 1,000 kg (2,200 lb). The type and only species is Magyarosaurus dacus. It has been found to be a close relative of Rapetosaurus in the family Saltasauridae in the sauropod clade Titanosauria in a 2005 study.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
11
Group
Dinosaures
Herbivore Ground dwelling, gregarious Terrestrial
Magyarosaurus
click to enlarge
Wikimedia
Magyarosaurus
Magyarosaurus
PBDB ↗ Wikipedia ↗
Classification
Dinosauria Unranked clade
›
Saurischia Unranked clade
›
Sauropodomorpha Unranked clade
›
Massopoda Unranked clade
›
Sauropodiformes Unranked clade
›
Sauropoda Unranked clade
›
Gravisauria Unranked clade
›
Eusauropoda Unranked clade
›
Neosauropoda Unranked clade
›
Macronaria Unranked clade
›
Titanosauriformes Unranked clade
›
Somphospondyli Unranked clade
›
Titanosauria Unranked clade
›
Eutitanosauria Unranked clade
›
Magyarosaurus Genus
Measurements
Length
5,6 m ⓘ
Magyarosaurus dacus
5 m ⓘ
Mass
520 kg ⓘ
Magyarosaurus dacus
Fossil sites 11 geolocated sites
Distribution
Top countries
🇷🇴 Romania
11
Geological formations
Sebeş
5
Densuș-Ciula
3
Pui Beds
2
Sînpetru
1
Temporal distribution
Maastrichtian (72.2–66 Ma)
11
Species (2)
Magyarosaurus dacus 72 Ma
Magyarosaurus transsylvanicus subjective synonym of Magyarosaurus dacus 72 Ma
Images 3
Bibliography
Original description
F. v. Huene. 1932. Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte [The fossil reptile order Saurischia, their development and history]. Monographien zur Geologie und Palaeontologie, serie 1 4(1-2):1-361
Bibliography (6)
V. Díez Díaz, P. D. Mannion, and Z. Csiki-Sava, P. Upchurch. 2025. Revision of Romanian sauropod dinosaurs reveals high titanosaur diversity and body-size disparity on the latest Cretaceous Haţeg Island, with implications for titanosaurian biogeography. Journal of Systematic Palaeontology 23(1):2441516 DOI ↗
S. Brusatte, M. Vremir, and A. Watanabe, Z. Csiki-Sava, D. Naish, G. J. Dyke, G. M. Erickson, M. A. Norell. 2013. An infant ornithopod dinosaur tibia from the Late Cretaceous of Sebes, Romania. Terra Sebus. Acta Musei Sabesiensis 5:627-644
M. Delfino, V. Codrea, and A. Folie, P. Dica, P. Godefroit, T. Smith. 2008. A complete skull of Allodaposuchus precedens Nopcsa, 1928 (Eusuchia) and a reassessment of the morphology of the taxon based on the Romanian remains. Journal of Vertebrate Paleontology 28(1):111-122 DOI ↗
D. Grigorescu, M. Venczel, and Z. Csiki, R. Limberea. 1999. New latest Cretaceous microvertebrate fossil assemblages from the Haţeg Basin (Romania). Geologie en Mijnbouw 78:301-314
F. v. Huene. 1932. Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte [The fossil reptile order Saurischia, their development and history]. Monographien zur Geologie und Palaeontologie, serie 1 4(1-2):1-361
B. F. Nopcsa. 1915. Die dinosaurier der Siebenbürgischen landesteile Ungarns [Dinosaurs of the Transylvanian regions of Hungary]. Mitteilungen aus den Jahrbuch der Königlich Ungarnischen Geologischen Reichsanstalt 23:1-24