Wyniki wyszukiwania

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Miocene-Pliocene insectivores from China and their relationship to European insectivores

100%

Storch G., Qiu Z.

Acta Zoologica Cracoviensia

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1996

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tom 39

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nr 1

2

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First complete heterosoricine shrew: A new genus and species from the Miocene of China

100%

Storch G., Qiu Z.

Acta Palaeontologica Polonica

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2004

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tom 49

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nr 3

Heterosoricinae are the oldest known soricids, their records dating back to the middle Eocene of North America and earliest Oligocene of Eurasia. They became extinct during the Miocene and were thus far only known from dental and cranial remains. For the first time, a virtually complete heterosoricine is described, coming from the early/middle Miocene locality of Shanwang, Shandong Province, which is famous for the diversity and excellent preservation of its fossils. Lusorex taishanensis gen. et sp. nov. is closely related to Wilsonosorex from the early Hemingfordian of North America. Both are unusual in sharing well−developed conules on the upper molars and reduced ectocingulids on the lowers, and most likely these sister taxa reflect faunal exchange between North America and NE Asia in early Miocene time. L. taishanensis was the size of a European common shrew, Sorex araneus. The heavy masticatory apparatus of the new heterosoricine contrasts with its slender postcranial skeleton. Adaptively, L. taishanensis appears to be similar to the North American Blarina brevicauda in its strong masticatory apparatus, very short tail, and slight limb specializations toward fossorial habits. It differs from other soricids as far as is known by unfused tibia and fibula.

3

Ankle structure in Eocene pholidotan mammal Eomanis krebsi and its taxonomic implications

80%

Horovitz I., Storch G., Martin T.

Acta Palaeontologica Polonica

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2005

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tom 50

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nr 3

Georges Cuvier (1798) established the classical concept of Edentata which included sloths, anteaters, armadillos, aardvarks, and pangolins. With the growing body of comparative morphological data becoming available during the nineteenth century, it was evident that Cuvier's “Edentata” was an artificial group (e.g., Huxley 1872). In his classical textbook, Weber (1904) excluded aardvarks and pangolins from the Edentata and put them in separate orders, Tubulidentata and Pholidota. Later on, fossil taxa were repeatedly added to and removed from Edentata, such as various xenarthran groups, taeniodonts, palaeanodonts, and gondwanatheres, but the South American Xenarthra always was considered as their core group. Even the living order Pholidota has been cited again as ?Edentata incertae sedis many years after Weber’s work (Romer 1966). The validity and extent of a higher taxon Edentata are still in dispute. In this discussion, the Middle Eocene pholidotan Eomanis and the putative xenarthran Eurotamandua from Grube Messel near Darmstadt (Germany) play an important role (Storch 1978, 1981, 2003; Rose and Emry 1993; Gaudin and Branham 1998; Rose 1999). Eomanis krebsi and Eurotamandua joresi have been subject to some discussion regarding their taxonomic distinction. It has been suggested that the only specimen known of Eo. krebsi might actually be a juvenile representative of the senior species E. joresi. A reexamination of the type specimen of Eo. krebsi has yielded some new observations regarding the identity of some of its ankle elements. An element that was previously identified as a navicular, is here reidentified as a partial distal tibia, whereas a partially exposed calcaneus had gone unnoticed. These two elements display several differences in morphology between Eo. krebsi and E. joresi, indicating that these are in fact distinct species.

4

Ssaki wyspy Europa

50%

Storch G.

Świat Nauki

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1992

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nr 04

44-50

Ograniczanie wyników

2 Acta Palaeontologica Polonica

1 Acta Zoologica Cracoviensia

1 Świat Nauki

4 Storch G.

2 Qiu Z.

1 Horovitz I.

1 Martin T.

1 2005

1 2004

1 1996

1 1992

Miocene-Pliocene insectivores from China and their relationship to European insectivores

First complete heterosoricine shrew: A new genus and species from the Miocene of China

Ankle structure in Eocene pholidotan mammal Eomanis krebsi and its taxonomic implications

Ssaki wyspy Europa