Reports

Conchostracans: Living and Fossil from Chihuahua and Sonora, Mexico

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Science  21 Feb 1964:
Vol. 143, Issue 3608, pp. 806-807
DOI: 10.1126/science.143.3608.806

Abstract

In August 1963, living conchostracans (branchipod Crustacea) of the genera Leptestheria and Eulimnadia were collected at three stations in Chihuahua. One Sonoran locality yielded Triassic fossils of the family Cyzicidae, a widespread North American group. The geographic rangeof the geologically younger families Leptestheriidae and Limnadidae (particularly the genus Eulimnadia) thus extended to Chihuahua during post-Mesozoic time.

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