Rediscovery of the bizarre Cretaceous ant Haidomyrmex Dlussky (Hymenoptera, Formicidae), with two new species. (American Museum novitates, no. 3755)

dc.contributor.advisor
dc.contributor.authorBarden, Phillip.
dc.contributor.authorGrimaldi, David A.
dc.date.accessioned2012-09-17T20:12:40Z
dc.date.available2012-09-17T20:12:40Z
dc.date.issued2012-09-14
dc.description16 p. : ill. (some col.) ; 26 cm.en_US
dc.description.abstractThe discovery of two distinct, near-complete specimens belonging to the Cretaceous ant genus Haidomyrmex Dlussky prompts a detailed description and discussion of a remarkable mandibular morphology. The specimens, preserved in 98 million-year-old amber from northern Myanmar, are described here as Haidomyrmex scimitarus, n. sp., and Haidomyrmex zigrasi, n. sp., with diagnostic differences provided between them as well as with H. cerberus Dlussky (also in Burmese amber). Relationships and comparisons of H. scimitarus, H. zigrasi, H. cerberus, and the recently described Haidomyrmodes mammuthus Perrichot from Cretaceous French amber are also discussed. Haidomyrmex was probably arboreal, cursorial, and a specialized trap-jaw predator, utilizing its enormous mandibles and cranial morphology in concert to capture prey. Mandibles appear to have moved in a plane oblique to the dorsoventral and horizontal axes of the body, unlike the lateral-plane movement of modern ants. The additions of these new fossils provide insight into some of the earliest yet surprisingly specialized ants that roamed the earth.en_US
dc.identifier.urihttp://hdl.handle.net/2246/6368
dc.language.isoen_USen_US
dc.publisherAmerican Museum of Natural History.en_US
dc.relation.ispartofseriesAmerican Museum novitates, no. 3755.en_US
dc.subjectHaidomyrmex scimitarus.en_US
dc.subjectHaidomyrmex zigrasi.en_US
dc.subjectHaidomyrmex.en_US
dc.subjectMandible.en_US
dc.subjectAnts, Fossil.en_US
dc.subjectAmber fossils.en_US
dc.subjectBurma, Upper.en_US
dc.titleRediscovery of the bizarre Cretaceous ant Haidomyrmex Dlussky (Hymenoptera, Formicidae), with two new species. (American Museum novitates, no. 3755)en_US
dc.title.alternativeCretaceous ant Haidomyrmex Dlussky.en_US

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