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Paleogeographic and paleoecological significance of Schachriomonia (Brachiopoda) from the Upper Ordovician of the Tarim Basin, Northwest China
Sproat, Colin D.1,2,3; Zhan, Renbin (詹仁斌)2,3,4
2019-11-01
发表期刊JOURNAL OF PALEONTOLOGY
ISSN0022-3360
卷号93期号:6页码:1075-1087
摘要

The atrypide brachiopod Schachriomonia is documented here for the first time from the upper Katian Hadabulaktag Formation on the northeastern edge of Tarim Basin in Northwest China. These shells are conspecific with the earlier reported Rhynchotrema pentagonia Fang in Liu and Fang, 1990 from the same region. This species is most similar to Schachriomonia parva Popov et al., 1999 described from the Upper Ordovician of the Chu-Ili and Chingiz terranes and less closely resembles species from North and South China, indicating a close paleogeographic connection between these plates and terranes and Tarim during the Late Ordovician. Its dominance at three horizons in the study area may indicate that this species was an opportunistic colonizer of the seafloor following ecological disruption, or alternatively that the larvae were substrate-selective. Variation in shell shape from a nearly circular shell outline with a dorsal sulcus and ventral fold in the smallest shells to a wider outline with a more reversed dorsal fold and ventral sulcus in the largest is an example of ontogenic development. This may have been an adaptation to accommodate the growing lophophore or development of gonads in the mantle cavity over the life of the brachiopod. A stronger toothsocket connection in larger shells strengthened the hinge area to better withstand the stresses caused by the mass of a larger shell.

DOI10.1017/jpa.2019.35
收录类别SCI
语种英语
关键词[WOS]EVOLUTION ; FAUNA ; ATRYPOIDS
资助项目Chinese Academy of Sciences President's International Fellowship ; Chinese Academy of Sciences[XDBB26000000] ; State Key Laboratory of Palaeobiology and Stratigraphy ; IGCP Project[653]
WOS研究方向Paleontology
WOS类目Paleontology
WOS记录号WOS:000511137400003
项目资助者Chinese Academy of Sciences President's International Fellowship ; Chinese Academy of Sciences ; State Key Laboratory of Palaeobiology and Stratigraphy ; IGCP Project
出版者CAMBRIDGE UNIV PRESS
文献类型期刊论文
条目标识符http://ir.nigpas.ac.cn/handle/332004/31434
专题中国科学院南京地质古生物研究所
通讯作者Sproat, Colin D.
作者单位1.Univ Saskatchewan, Dept Geol Sci, Saskatoon, SK S7N 5A5, Canada
2.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, 39 East Beijing Rd, Nanjing 210008, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing Inst Geol & Palaeontol, 39 East Beijing Rd, Nanjing 210008, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Sproat, Colin D.,Zhan, Renbin . Paleogeographic and paleoecological significance of Schachriomonia (Brachiopoda) from the Upper Ordovician of the Tarim Basin, Northwest China[J]. JOURNAL OF PALEONTOLOGY,2019,93(6):1075-1087.
APA Sproat, Colin D.,&Zhan, Renbin .(2019).Paleogeographic and paleoecological significance of Schachriomonia (Brachiopoda) from the Upper Ordovician of the Tarim Basin, Northwest China.JOURNAL OF PALEONTOLOGY,93(6),1075-1087.
MLA Sproat, Colin D.,et al."Paleogeographic and paleoecological significance of Schachriomonia (Brachiopoda) from the Upper Ordovician of the Tarim Basin, Northwest China".JOURNAL OF PALEONTOLOGY 93.6(2019):1075-1087.
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