Where found: Open habitats with scattered vegetation in the Pantepui mountains of northern South America whitelyi (Roraiman nightjar, type species, formerly in Setopagis) Meaning of name: Tepuiornis = tepui bird (An individual of Tepuiornis whitelyi, photographed by Jhonathan Miranda, from the Macaulay Library) doi: 10.1080/02724634.2023.2257238 Palaeoblr Dinosaurs Ampelognathus Late Cretaceous North America Ornithopoda 2023 Extinct Journal of Vertebrate Paleontology advance online publication. The first small-bodied ornithopod dinosaur from the Lewisville Formation (middle Cenomanian) of Texas. Its lower jaw was generally similar to that of other small ornithopods, but differs from theirs in several features, such as being slightly twisted along its length so that the teeth in the back of the jaw pointed somewhat inward. Although hadrosaurids included the largest known ornithischian (“bird-hipped”) dinosaurs and probably spent most of their time on all fours, the earliest ornithopods were small, bipedal forms, and it was probably this ancestral body plan that was retained by Ampelognathus.Īmpelognathus is the first small ornithopod and one of the few ornithischians known from the Lewisville Formation. ![]() Notes: Ampelognathus was an ornithopod, a diverse group of plant-eating dinosaurs that include the duck-billed hadrosaurids. How much is known: The left half of a partial lower jaw. Where found: Lewisville Formation, Texas, U.S.A. Meaning of name: Ampelognathus = grapevine jaw coheni = for Murray Cohen Īge: Late Cretaceous (Cenomanian), around 96 million years ago (Type jaw of Ampelognathus coheni, from Tykoski et al., 2023) doi: 10.1134/S0012496623700497 Palaeoblr Birblr Dinosaurs Birds Pterocles bosporanus Pleistocene Europe Columbimorphae 2023 Extinct Doklady Biological Sciences 511: 264–266. A new species of sandgrouse (Aves: Pteroclidae) from the early Pleistocene of the Crimea. orientalis), from which it can be distinguished by the shape of its tibiotarsus. bosporanus was larger than most extant species of Pterocles other than the black-bellied sandgrouse ( P. Sandgrouse live in arid habitats and are known for their behavior in which the males use their absorbent belly feathers to transport water to their chicks. Notes: Pterocles is a genus of sandgrouse, a group of pigeon-like birds from Afro-Eurasia. Some coracoids (shoulder bones) from the Pleistocene of Italy may conceivably also belong to this species. How much is known: A partial left tibiotarsus (fused shin and ankle bones). Where found: Taurida Cave, Crimea, Ukraine Meaning of name: bosporanus = for the Bosporan KingdomĪge: Pleistocene (Calabrian), between 1.5–1.8 million years ago ![]() (Type tibiotarsus of Pterocles bosporanus, from Zelenkov, 2023)
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