Dinomischus from the Middle Cambrian Kaili Biota, Guizhou, China  

作　　者：PENG Jin ZHAO Yuanlong LIN Jih-Pai 

机构地区：[1]College of Resource and Environment Engineering, Guizhou University, Guiyang, Guizhou 550003, China [2]State Key Laboratory Palaeobiology and Stratigraphy （NIGP. CAS）, Nanjing, Jiangsu 210008, China [3]Department of Geological Sciences, Ohio State University, Columbus, OH43210, USA

出　　处：《Acta Geologica Sinica(English Edition)》2006年第4期498-501,共4页地质学报（英文版）

摘　　要：Dinomischus is a rare solitary epifaunal suspension feeder. The over-all morphology of Dinomischus consists of a conical calyx surrounded with elongate bracts and an elongate stem. Visceral mass and stomach sac are evident in the body cavity. Dinomischus is interpreted as a primative ancestor of living entoprocts based on similarities in morphology and mode of life. Previously, Dinomischus is only known in two localities： the mid-Middle Cambrian Burgess Shale Biota and the Early Cambrian Chengjiang Biota. A single specimen of Dinomischus cf. D. isolatus Cowry Morris, 1977 from the Kaili Biota, Guizhou, China is reported here. The discovery of Dinomischus in the Kaili Biota extends its geographical range and indicated that the rare Dinomischus could tolerate deeper water settings during the Middle Cambrian.Dinomischus is a rare solitary epifaunal suspension feeder. The over-all morphology of Dinomischus consists of a conical calyx surrounded with elongate bracts and an elongate stem. Visceral mass and stomach sac are evident in the body cavity. Dinomischus is interpreted as a primative ancestor of living entoprocts based on similarities in morphology and mode of life. Previously, Dinomischus is only known in two localities： the mid-Middle Cambrian Burgess Shale Biota and the Early Cambrian Chengjiang Biota. A single specimen of Dinomischus cf. D. isolatus Cowry Morris, 1977 from the Kaili Biota, Guizhou, China is reported here. The discovery of Dinomischus in the Kaili Biota extends its geographical range and indicated that the rare Dinomischus could tolerate deeper water settings during the Middle Cambrian.

关 键 词：Dinomischus Kaili Biota Middle Cambrian GUIZHOU China 

分 类 号：P534.41[天文地球—古生物学与地层学]