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Afrarchaea grimaldii, a New Species of Archaeidae (Araneae) in Cretaceous Burmese Amber

David Penney
The Journal of Arachnology
Vol. 31, No. 1 (2003), pp. 122-130
Stable URL: http://www.jstor.org/stable/3706320
Page Count: 9
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Afrarchaea grimaldii, a New Species of Archaeidae (Araneae) in Cretaceous Burmese Amber
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Abstract

Afrarchaea grimaldii new species (Archaeidae, Archaeinae) from 88-95 Ma (Cenomanian-Turonian) Upper Cretaceous amber (Burmite) from Myanmar (Burma) is described. This is the first spider to be described from this deposit and is the oldest known Archaeidae sensu stricto extending the known range of the family by approximately 50 Ma from the previously oldest recorded specimens in Baltic and Bitterfeld ambers, and provides further evidence that spiders were not severely affected by the end-Cretaceous mass extinction event. It represents the oldest fossil record of an araneophagic spider. This species could be used to argue for both the theory of mobilistic biogeography and ousted relicts to explain the zoogeography of the genus, but until new data become available, supports neither reliably.

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