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Metric characteristics and sexual dimorphism of the postcranial skeleton of wild cat Felis silvestris in Bulgaria

100%

Petrov I.

Acta Theriologica

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1992

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tom 37

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nr 4

The measurements of scapula, pelvis, humerus, ulna, radius, tibia, femur, and the first three vertebrae of the adult wild cat Felis silvestris Schreber, 1777 from Bulgaria were used in this study. Considerable differences between the sexes were revealed at three levels of significance in most of the sizes of scapula, pelvis, and vertebrae. The males were bigger than the females. No significant differences were found in the limb bones, except in the length of the humerus. Widening of the female pelvis was not observed. The variability of the skeletal parts examined was found to be comparatively low for most of them.

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A sauropod foot from the Early Cretaceous of Western Siberia, Russia

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Averianov A. O., Voronkevich A. V., Maschenko E. N., Leshchinskiy S. V., Fayngertz A. V.

Acta Palaeontologica Polonica

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2002

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tom 47

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nr 1

We describe a reasonably complete sauropod foot from the Early Cretaceous (Aptian–Albian) Ilek Formation at the Shestakovo locality in Western Siberia, Russia.It shows some primitive characters, such as slender metatarsals, a relatively long second pedal ungual, and three claws.In the likely presence of the laterodistal process on the first metatarsal the Shestakovo sauropod is similar with diplodocoids, but its more elongated and gracile first metatarsal resembles brachiosaurids (Brachiosaurus, Pleurocoelus, and Cedarosaurus), titanosaurids (Laplatasaurus), and Euhelopus. Pleurocoelus−like isolated teeth from the Shestakovo assemblage may support the brachiosaurid affinities of the Shestakovo sauropod, but a strongly procoelous mid−caudal vertebra from another locality in the same formation establishes the presence of a titanosaurid in the fauna.The foot described is referred here to as Titanosauriformes gen.et sp.indet.

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Postcranial skeleton of a Cretaceous multituberculate mammal Catopsbaatar

58%

Hurum J. H., Kielan-Jaworowska Z.

Acta Palaeontologica Polonica

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2008

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tom 53

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nr 4

We describe an incomplete postcranial skeleton of Catopsbaatar catopsaloides from the ?late Campanian red beds of Hermiin Tsav I, in the Gobi Desert, Mongolia. The skeleton is fragmentary and the preservation of bone surface does not permit reconstruction of the musculature. The studied skeleton contains some parts not preserved or incompletely known in other multituberculate genera, such as a long spinous process in a single lumbar vertebra, which together with long transverse processes preserved in Nemegtbaatar, might indicate that at least some multituberculates had jumping ability. The calcaneus of Catopsbaatar is unusual, differing from most other multituberculates (where known) and other mammals by having a short tuber calcanei, with a large proximal anvil−shaped process strongly bent laterally and ventrally, arranged obliquely with respect to the distal margin of the calcaneus, rather than arranged at 90° to it, as in other mammals. This suggests the presence of strong muscles that attached to the tuber calcanei, perhaps further attesting to jumping abilities in Catopsbaatar. We also describe an unfused pelvic girdle and the first extratarsal spur bone (os cornu calcaris) known in multituberculates.

Ograniczanie wyników

2 Acta Palaeontologica Polonica

1 Acta Theriologica

1 Averianov A. O.

1 Fayngertz A. V.

1 Hurum J. H.

1 Kielan-Jaworowska Z.

1 Leshchinskiy S. V.

1 Maschenko E. N.

1 Petrov I.

1 Voronkevich A. V.

1 2008

1 2002

1 1992

Metric characteristics and sexual dimorphism of the postcranial skeleton of wild cat Felis silvestris in Bulgaria

A sauropod foot from the Early Cretaceous of Western Siberia, Russia

Postcranial skeleton of a Cretaceous multituberculate mammal Catopsbaatar