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Numerical taxonomy of Encrinurinae (Trilobita): additional species from China and elsewhere

Published online by Cambridge University Press:  03 November 2011

J. T. Temple  and
Wu Hong-ji
J. T. Temple
Affiliation:
J. T. Temple, Department of Geology, Birkbeck College, Malet Street, London WC1E 7HX, United Kingdom
Wu Hong-ji
Affiliation:
Wu Hong-Ji, Nanjing Institute of Geology & Palaeontology, Chi-Ming-Ssu, Nanjing, People's Republic of China
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Abstract

The numerical taxonomic analysis of encrinurine trilobites by Temple and Tripp (1979) is extended to 28 described Chinese species, 35 other Chinese samples, and 13 non-Chinese species, in addition to 56 species analysed previously. The 132 entities are coded for 34 cranidial and pygidial attributes, and are ordinated on the eigenvectors of the interattribute correlation matrix for 32 attributes. Chinese material falls into four clusters informally compared with Coronocephalus, Kailia, Encrinuroides and Encrinurus. The Encrinurus-like Chinese species occur mainly in Northern China and have links with non-Chinese species.

Keywords

32-attribute ordinationeigenvectorsminimal spanning treeEuclideanManhattan.
Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 81 , Issue 3 , 1990 , pp. 209 - 219
Copyright
Copyright © Royal Society of Edinburgh 1990

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