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Anthidium exhumatum : ウィキペディア英語版 | Anthidium exhumatum
''Anthidium exhumatum'' is an extinct species of mason bee in the Megachilidae genus ''Anthidium''. The species is solely known from the late Eocene, Chadronian stage, Florissant Formation deposits in Florissant, Colorado, USA.〔 ''Anthidium exhumatum'' is one of only four extinct species of mason bees known from the fossil record, and with ''Anthidium scudderi'', one of two species from the Florissant Formation.〔 ==History and classification== The species is known only from three fossils, the holotype and an additional fossil not designated a type specimen. The holotype, number "No. 2003", is a single male specimen consisting of part and counterpart fossils, originally part of the Samuel Hubbard Scudder collection as specimens "No. 13,709" and "No. 11,388". The additional specimen, "No.8444", is a female; all three fossils are currently residing in Harvard University's Museum of Comparative Zoology paleoentomology collections.〔 ''A. exhumatum'' was first studied by Theodore Cockerell, who published the type description in the ''Bulletin of the Museum of Comparative Zoology'', 1906.〔 The derivation and meaning of the specific epithet ''exhumatum'' ("dug up") was not specified by Cockerell in the type description.
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