BioOne.org will be down briefly for maintenance on 17 December 2024 between 18:00-22:00 Pacific Time US. We apologize for any inconvenience.
How to translate text using browser tools
1 March 2014 A New Helmetiid Arthropod From The Early Cambrian Chengjiang Lagerstätte, Southwest China
Fangchen Zhao, Shixue Hu, Han Zeng, Maoyan Zhu
Author Affiliations +
Abstract

A new arthropod, Haifengella corona new genus new species is described from the early Cambrian Chengjiang Lagerstätte (Series 2, Stage 3), Yunnan Province, southwest China. It is readily assignable to helmetiida based on gross morphology of the tergum. The new helmetiid is unique in having the marginal spines extending over one-third of the total body width. The weakly sclerotized tergum consists of six thoracic tergites with edge-to-edge tergite articulations. The sub-trapezoidal cephalic shield has a pair of long spines projecting from each posterolateral corner. A prehypostomal sclerite (anterior sclerite) recesses in the anterior margin of the cephalic shield, and a pair of bulges that are close to the prehypostomal sclerite in the cephalic shield are presumed to be the position of ventral eyes. Each of the thoracic tergites exhibits a pair of long spines projecting from the posterolateral corners. The semicircular pygidium carries one terminal spine and two pairs of lateral spines.

Fangchen Zhao, Shixue Hu, Han Zeng, and Maoyan Zhu "A New Helmetiid Arthropod From The Early Cambrian Chengjiang Lagerstätte, Southwest China," Journal of Paleontology 88(2), 367-370, (1 March 2014). https://doi.org/10.1666/13-103
Accepted: 1 October 2013; Published: 1 March 2014
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top