RESTUDY ON THE TAXONOMIC POSITION OF PROTAITZEHOIA YANG (TRILOBITA)--REPLY TO DISCUSSION ON THE TAXONOMIC POSITION AND THE SPECIFIC SYNONYMS OF PROTAITZEHOIA YANG
Article
Figures
Metrics
Preview PDF
Reference
Related
Cited by
Materials
Abstract:
Based on study on the matching trilobite cephalon (cranidium) and pygidium, it has been demonstrated that the Protaitzehoia sp. (Peng et al ., 2003,textfig.2(I L) was established for pygidium (K) of Stephanocare Monke, 1903 (Lu et al ., 1965,pl.73,figs.5 9; Zhang and Jell,1987,pl.104,figs.5 7) belonging to Damesellidae Kobayashi,1935 and mismatched cranidia of Protaitzehoia Yang, which are unrelated to Damesellidae Kobayashi, 1935. In general configuration of cranidium, free cheek, pygidium and hypostoma, Protaitzehoia Yang is closely related to Cheilocephalus Berkey,1898 (Rasetti,1965,pl.17,figs.1 14). Protaitzehoia Yang is, however, discriminated from Cheilocephalus Berkey,1898 only by its deeper glabellar furrows, more or less pygidial indentation at rear and granular sculpture on the surface of exoskeleton, therefore Protaitzehoia Yang is here attributed to the Cheilocephalidae Shaw,1956.
