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Anochetus brevidentatus
''Anochetus brevidentatus'' is an extinct species of ant in the subfamily Ponerinae known from two possibly Miocene fossils found on Hispaniola. ''A. ambiguus'' is one of eight species in the ant genus ''Anochetus'' to have been described from fossils found in Dominican amber and is one of a number of ''Anochetus'' species found in the Greater Antillies.
==History and classification==
''Anochetus brevidentatus'' is known from two solitary fossil insects which are inclusions in transparent chunks 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 type specimen was collected from the La Toca Mine near las Aguitas,〔 while the second specimen is from an undetermined amber mine.〔 Both are from fossil bearing rocks of the Cordillera Septentrional mountains in the 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 age range is only the youngest that it might be.〔
At the time of description, the holotype specimen was preserved in the Museum of Comparative Zoology at Harvard University. The holotype fossil was first studied by entomologist William MacKay with his 1991 type description of the new species being published in the ''Journal of the New York Entomological Society''. The specific epithet ''brevidentatus'' is derived Latin as a reference to the short length of the spines on the petiole.〔 The second known specimen was identified by entomologist Maria L. De Andrade of the University of Basle from a specimen in the State Museum of Natural History Stuttgart amber collections and briefly described in 1994.〔
''A. brevidentatus'' is one of eight ''Anochetus'' species which have been described from Dominican amber. One species, ''A. corayi'', was published earlier than ''A. brevidentatus'', being described in 1980.〔 The remaining six species; ''A. ambiguus'', ''A. conisquamis'', ''A. dubius'', ''A. exstinctus'', ''A. intermedius'', and ''A. lucidus'' were all described by De Andrade in the same 1994 paper.〔 A number of modern species live in the Greater Antilles, with at least three modern species found on Hispaniola.
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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