COLD-WATER CHITINOZOAN SPECIES FROM THE ORDOVICIAN SEDIMENTS IN TARIM BASIN, XINJIANG, CHINA
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Abstract:
Ordovician cold-water chitinozoan species, viz. Tanuchitina sp. cf. achabae Paris, Linochitina pissotensisParis and Siphonochitina bella sp. nov., are discovered from the TZ-32 Well (the Charchaq Formation) and QB-1 Well (theHeituao Formation) in the Tarim Basin, Xinjiang, China. Species of Linochitina and Siphonochitina were mainly found fromhigh latitude areas. The findings of these species in the Tarim Basin confirms that these cold-water origin genera can beobtained outside the Gondwanaland margin. The age of those fossils is Middle to Late Ordovician. Three species are describedand illustrated in the present paper.
