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''Palaeoagaracites'' is an extinct monotypic genus of gilled fungus in the order Agaricales. It contains the single species ''Palaeoagaracites antiquus''. The genus is solely known from the Lower Cretaceous, Upper Albian stage (about 100 Ma), Burmese amber deposits in Myanmar.〔 ''Palaeoagaracites'' is one of only five known agaric fungal species known in the fossil record, the oldest to be described, and only genus from Burmese amber.〔 ==History and classification== The genus is known only from the single holotype, number "''AB-368''", a single partial fruiting body specimen. When described the mushroom is part of in the private collection of Ron Buckley of Florence, Kentucky, USA.〔 The collection has been sold and is now owned by Deniz Erin of Istanbul, Turkey.〔(Fossil page of Ron Buckley ) accessed on 7 December 2010〕 ''AB-368'' was collected from one of the amber mines in the Hukawng Valley area southwest of Maingkhwan, Kachin State, Northern Myanmar.〔 It was first studied by a pair of researchers led by Dr George Poinar from Oregon State University who worked with Ron Buckley. Poinar and Buckley published their 2007 type description in ''Mycological Research'', a journal of the British Mycological Society.〔 The genus has been assigned the MycoBank number ''MB510456'', and the species number ''MB510465''.〔 The genus name ''Palaeoagaracites'' is Greek in derivation and is a combination of the words ''palaeo'' meaning "old" and ''agaricon'', which means "fungus".〔 The specific epithet "''antiquus''" was coined by the authors possibly from the Latin for "old" in reference to the age of the specimen. When published, ''Palaeoagaracites antiquus'' was the fifth species of agaric fungus to be described, and the oldest. The three species ''Aureofungus yaniguaensis'', ''Coprinites dominicana'' and ''Protomycena electra'' are known from the Burdigalian amber mines of the Dominican Republic, while the fourth species ''Archaeomarasmius leggeti'' is from the slightly younger Turonian age New Jersey Amber.〔〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Palaeoagaracites」の詳細全文を読む スポンサード リンク
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