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Ontogeny of the Middle Cambrian trilobite Shantungia Spinifera Walcott, 1905 from North China and its taxonomic significance

Published online by Cambridge University Press:  14 July 2015

Tae-Yoon Park
Affiliation:
1School of Earth and Environmental Sciences, Seoul National University, Seoul 151-747, Korea, , ,
Sang June Moon
Affiliation:
1School of Earth and Environmental Sciences, Seoul National University, Seoul 151-747, Korea, , ,
Zuozhen Han
Affiliation:
2College of Geo-information Science and Technology, Shandong University of Science and Technology, Shandong 266510, China,
Duck K. Choi
Affiliation:
1School of Earth and Environmental Sciences, Seoul National University, Seoul 151-747, Korea, , ,

Extract

The Cambrian trilobite Shantungia Walcott, 1905 is a monotypic genus, with S. spinifera Walcott, 1905 as the genotype and is characterized by its long frontal spine extending medially from the anterior cranidial border. The genus has hitherto been known restricted in occurrence to the traditional Drepanura Zone of North China (Walcott, 1913; Endo and Resser, 1937; Qiu et al., 1983; Zhang and Jell, 1987). As Drepanura Bergeron, 1899 is preoccupied by a collembolan insect and Neodrepanura Özdikmen, 2006 was proposed as a replacement, this zone is referred to as the Neodrepanura Biozone herein.

Type
Paleontological Notes
Copyright
Copyright © The Paleontological Society 

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