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Zoology and wildlife conservation

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Abstracts » Zoology and wildlife conservation

Primitive dinosaur skeleton from Argentina and the early evolution of Dinosauria

Article Abstract:

Upper Triassic strata in northwestern Argentina have yielded a dinosaur skeleton resembling that of the predicted common ancestor of all dinosaurs. Grasping and raking hands suggest that this specimen was a predator, and the relative size of the forelimbs and hind limbs suggest that it was bipedal. The specimen will be classified as Eoraptor lunensis. Its discovery confirms the view that dinosaurs evolved rapidly from a small ancestor.

Author: Forster, Catherine A., Sereno, Paul C., Rogers, Raymond R., Monetta, Alfredo M.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1993
Evolution (Biology), Varieties, Reptiles, Fossil, Fossil reptiles, Triassic period

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Cretaceous multituberculate skeleton and the early evolution of the mammalian shoulder girdle

Article Abstract:

A different forelimb posture than other Cretaceous eucosmodonts was observed in a cretaceous eucosmodont multituberculate mammal skeleton with a well- conserved shoulder girdle found in Mongolia. Locomotion change seen in the skeletal structure had occurred in multituberculates and therians in the mid Jurassic period. Other postural and mobility characteristics of the specimen are similar to that of therians.

Author: Sereno, Paul C., McKenna, Malcolm C.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1995
Discovery and exploration, Cretaceous period, Shoulder girdle, Mammals, Fossil, Fossil mammals

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Cannibalism in the Madagascan dinosaur Majungatholus atopus

Article Abstract:

Paleontologists have discovered dinosaur bones in Madagascar that bear theropod toothmarks, indicating that the species Majungatholus fed not only on sauropods, but also their own species.

Author: Krause, David W., Rogers, Kristina Curry, Rogers, Raymond R.
Publisher: Macmillan Publishing Ltd.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2003
Research and Development in the Physical, Engineering, and Life Sciences, Science & research, Madagascar, Paleontology, Nutritional aspects, Cannibalism, Cannibalism (Human behavior)

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Subjects list: Dinosaurs, Paleontology, Research
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