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"Bordeianu, Marian"

 
 
 Veress, Laszlo; Bordeianu, Marian; Codrea, Vlad A. (detail)
   
2022
Some new data on the Eocene sirenians from Cluj-Napoca Somes-Dig
 (Transylvanian Basin, Romania)
–Abstract: The sedimentary rocks of the Transylvanian Basin, the largest molassic basin in Romania, range in age from the latest Cretaceous to the late Miocene. While younger ages are prevalent in the basin's central area, only a few areas on the basin's periphery expose older ages. The Paleogene Gilau sedimentary area is among the latter ones. On the surface of this area, both in the municipality of Cluj-Napoca and in the close vicinity, are Paleogene rocks of marine and terrestrial origin that include fossils from several types of vertebrates. The fossil locality from
 Somes-Dig, where the Priabonian Cluj Limestone Formation is exposed, is a key location for sirenian fossils. Recent excavations at this location revealed postcranial sirenian fossils. In this study, an anatomically attached radius and ulna, and a fragmentary pelvis are fi rstly described in Romania, alongside four rib fragments. Due to the
 absence of a conclusive classifi cation at the species or even genus level, the recovered fossils were only assigned to the Dugongidae family. Even though they were discovered in the same location on a restricted area, the fossilized
 bones exhibit distinct ontogenetic characteristics, indicating that they belonged to different individuals.
Daryl P. Domning, Research Associate, Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, D.C. 20560, and Laboratory of Evolutionary Biology, Department of Anatomy, College of Medicine, Howard University, Washington, D.C. 20059.
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