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Post by Gorilla king on May 9, 2022 7:26:22 GMT -5
URSUS DENINGERI
Ursus deningeri (Deninger's bear) is an extinct species of bear, endemic to Eurasia during the Pleistocene for approximately 1.7 million years, from 1.8 to 0.1 million years ago.
The range of this bear has been found to encompass both Europe and Asia, demonstrating the ability of the species to adapt to many Pleistocene environments.
U. deningeri is a descendant of U. savini and an ancestor of U. spelaeus.
Morphology
Ursus deningeri has a combination of primitive and derived characters that distinguishes it from all other Pleistocene bears. Its mandible is slender like that of living brown bears and Ursus etruscus. It also has derived characters of cave bears (Ursus spelaeus) and is considered to be the descendant of Ursus savini and very close to the common ancestor of brown bears.[3]
en.m.wikipedia.org/wiki/Ursus_deningeri
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Post by Gorilla king on May 9, 2022 7:31:19 GMT -5
Ursus deningeri
Ursus deningeri (Ursus deningeri Richenau, 1904)
Order: Carnivora
Family: Ursidae
Dimensions: length - 2,5 m, height - 135 сm, weight - 150-600 kg
Temporal range: Pleistocene of Eurasia
Ursus deningeri (Deninger's bear) is an extinct species of mammal of the family Ursidae (bears), endemic to Eurasia during the Pleistocene for approximately 1.7 million years, from ~1.8 Mya to 100,000 years ago.The range of this bear has been found to encompass both Europe and Asia, demonstrating the ability of the species to adapt to many Pleistocene environments. U. deningeri is a descendant of U. savini and an ancestor of U. spelaeus.
Ursus deningeri has a combination of primitive and derived characters that distinguishes it from all other Pleistocene bears. Its mandible is slender like that of living brown bears and Ursus etruscus. It also has derived characters of cave bears (Ursus spelaeus) and is considered to be the descendant of Ursus savini and very close to the common ancestor of brown bears.
prehistoric-fauna.com/Ursus-deningeri
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Post by Gorilla king on May 9, 2022 7:59:53 GMT -5
Cranial and mandibular morphology of Middle Pleistocene cave bears (Ursus deningeri): implications for diet and evolution
Abstract and Figures
Deninger’s bears (Ursus deningeri) have been studied less frequently than Ursus spelaeus s.l. Our objective is to present, for the first time, an analysis of the skull shape of U. deningeri. Bear crania and mandibles were digitised with a Microscribe or CT-scanned and the surface models subsequently landmarked. The landmarks were chosen based on a compromise between functional morphology and sample size. Results show that U. deningeri and U. spelaeus mandibles display very similar morphologies and allometric trajectories, both to each other and to Ailuropoda melanoleuca. It is inferred that masticatory adaptations to a herbivorous diet were already present in the Middle Pleistocene. U. deningeri displays a cranial morphology that is similar to that of U. spelaeus when comparing all species, but U. deningeri has a relatively narrower and dorsoventrally lower zygomatic arch than U. spelaeus, although the masticatory signal is less strong in the skull. We observe intraspecific differences between different populations of U. deningeri, which could parallel the genetic diversity found in U. spelaeus. The intraspecific differences found within U. deningeri may be temporal and/or geographical in nature and could be related to the evolution of the Late Pleistocene cave bear, but this hypothesis remains to be tested.
www.researchgate.net/publication/326631958_Cranial_and_mandibular_morphology_of_Middle_Pleistocene_cave_bears_Ursus_deningeri_implications_for_diet_and_evolution
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Post by Gorilla king on May 9, 2022 8:05:23 GMT -5
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