Bradycneme Temporal range: Late Cretaceous, 70 Ma |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Reptilia |
Clade: | Dinosauria |
Order: | Saurischia |
Suborder: | Theropoda |
Family: | †Alvarezsauridae |
Genus: |
†Bradycneme Harrison & Walker, 1975 |
Species: | †B. draculae |
Binomial name | |
Bradycneme draculae Harrison & Walker, 1975 |
Bradycneme is a genus of theropod dinosaur from the early Maastrichtian-age Upper Cretaceous Sânpetru Formation of the Hațeg Basin, Transylvania, Romania. It is known only from a partial right lower leg (specimen BMNH A1588), which its original describers believed came from a giant owl.
Harrison and Walker described two "bradycnemids" from Romania in 1975: B. draculae and Heptasteornis andrewsi. These specimens had initially been assigned to the supposed pelecaniform bird Elopteryx nopcsai. Bradycneme means "ponderous leg", from Ancient Greek bradys (βραδύς) "slow, ponderous" + kneme (κνήμη) "leg", as the holotype, BMNH A1588, a 37.8 millimetres wide distal tibiotarsus found by Maud Eleanora Seeley, would be very stout if the animal had been an owl, indicating a body height of two metres. The specific name draculae is derived from Romanian dracul, "the dragon" and refers to Dracula.
Starting with Pierce Brodkorb, the specimens were soon compared to small theropod dinosaurs. These three genera Bradycneme, Elopteryx and Heptasteornis have been synonymized, split, and reassessed numerous times since then in part because of the fragmentary nature of the remains; there exist three proximal femora and three distal tibiotarsi, which may belong to one, two or three species. Usually, at least one of them is considered to be a troodontid.