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Apterostigma eowilsoni
''Apterostigma eowilsoni'' is an extinct species of ant in the subfamily Myrmicinae known from a single possibly Miocene fossil found on Hispaniola. ''A. eowilsoni'' is one of only two species of the ant genus ''Apterostigma'' and one of five attini species of to have been described from fossils found in Dominican amber.
==History and classification==
''Apterostigma eowilsoni'' is known from a solitary fossil insect which is an inclusion in a transparent chunk of Dominican amber.〔 The amber was produced by the extinct ''Hymenaea protera'', which formerly grew on Hispaniola, across northern South America and up to southern Mexico. The specimens were collected from an undetermined amber mine in fossil bearing rocks of the Cordillera Septentrional mountains, northern Dominican Republic.〔 The amber dates from at least the Burdigalian stage of the Miocene, based on studying the associated fossil foraminifera and may be as old as the Middle Eocene, based on the associated fossil coccoliths. This age range is due to the host rock being secondary deposits for the amber, and the Miocene the age range is only the youngest that it might be.〔
The holotype amber specimen, number DR-16-292, is currently preserved in the amber collections of the US National Museum, and is labeled as part of the Smithsonian Institution ant database as number 00443150. The fossil was first studied by entomologist Ted R. Schultz of the National Museum of Natural History with his 2007 type description of the new species being published in the journal ''Memoirs of the American Entomological Institute''. The specific epithet ''eowilsoni'' is a patronym honoring Edward Osborne "E. O." Wilson for his long career and years of important myrmecological discovery.〔
Prior to the species formal description in 2007, no ''Apterostigma'' species were known from the fossil record, however three other Attini species were already known from Dominican Amber, ''Trachymyrmex primaevus'', ''Cyphomyrmex maya'', and ''Cyphomyrmex taino''. Schultz's paper described a second Dominican amber ''Apterostigma'' species, ''A. electropilosum''. Bringing the total Attini fossil record to five species.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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