Corrections and Clarifications

Erratum

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Science  08 Dec 1989:
Vol. 246, Issue 4935, pp. 1237
DOI: 10.1126/science.246.4935.1237-a

Abstract

In the report "The early radiation and relationships of the major arthropod groups" by D. E. G. Briggs and R. A. Fortey (13 Oct., p. 241), the third sentence of the abstract should have read, "Cladistic analysis of characters of Cambrian and living representatives (excluding Uniramia) shows that trilobites and chelicerates are relatively advanced compared with `crustaceans,' and there are doubts whether the latter constitute a natural group."

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