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THE OLDEST ANTS ARE CRETACEOUS, NOT EOCENE: REPLY1

Published online by Cambridge University Press:  31 May 2012

George Poinar ,
Cesare Baroni Urbani  and
Alex Brown
George Poinar*
Affiliation:
Department of Entomology, Oregon State University, Corvallis, Oregon, United States 97331
Cesare Baroni Urbani
Affiliation:
Institut fur Natur-, Landschafts-und Umweltschutz, Abteilung Biogeographie, Neuhausstrasse 31, CH-4057 Basel, Switzerland
Alex Brown
Affiliation:
629 Euclid Avenue, Berkeley, California, United States 94708
*
2 Author to whom all corresponding should be addressed (E-mail: poinarg@bcc.orst.edu).
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Extract

Our study of the Hat Creek amber (Poinar et al. 1999) was undertaken to determine the range of the biota in the resin, to identify the plant that produced the resin, and to assess the future implications of these significant deposits. The study was in no way “compromised” by providing an alternative interpretation of the systematic position of the genus Sphecomyrma Wilson and Brown.

Type
Articles
Information
The Canadian Entomologist , Volume 132 , Issue 5 , October 2000 , pp. 695 - 696
Copyright
Copyright © Entomological Society of Canada 2000

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Footnotes

1

Reply to Grimaldi D, Agosti D. 2000. The Canadian Entomologist 132: 691–3.

References

Baroni Urbani, C., Bolton, B., Ward, P.S. 1992. The internal phylogeny of ants (Hymenoptera: Formicidae). Systematic Entomology 17: 13768Google Scholar
Grimaldi, D., Agosti, D. 2000. The oldest ants are Cretaceous, not Eocene: comment. The Canadian Entomologist 132: 6913CrossRefGoogle Scholar
Grimaldi, D., Agosti, D., Carpenter, J.M. 1997. New and rediscovered primitive ants (Hymenoptera: Formicidae) in Cretaceous amber from New Jersey, and their phylogenetic relationships. American Museum Novitates 3208: 143Google Scholar
Poinar, G. Jr., Archibald, B., Brown, A. 1999. New amber deposit provides evidence of early Paleogene extinctions, paleoclimates, and past distributions. The Canadian Entomologist 131: 1717CrossRefGoogle Scholar
Rust, J., Andersen, N.M. 1999. Giant ants from the Paleogene of Denmark with a discussion of the fossil history and early evolution of ants (Hymenoptera: Fromicidae). Zoological Journal of the Linnean Society 125: 33148CrossRefGoogle Scholar