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・ Gracile tateril
・ Gracilechinus
・ Gracilechinus acutus
・ Gracilentulus
・ Gracilepteryx
・ Gracilia
・ Graciliano Ramos
・ Gracilibacillus
・ Gracilibacillus boraciitolerans
・ Gracilibacillus halotolerans
・ Gracilibacillus ureilyticus
・ Graciliceratops
・ Graciliclava
・ Graciliclava costatus
・ Gracilicutes
Gracilidris
・ Gracilidris humiloides
・ Gracilidris pombero
・ Gracilignathicthys
・ Graciliini
・ Gracililamia ecuadorensis
・ Gracilinanus
・ Gracilineustes
・ Gracilinitocris
・ Graciliraptor
・ Gracilis
・ Gracilis muscle
・ Graciliscincus
・ Gracilisuchidae
・ Gracilisuchus


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Gracilidris : ウィキペディア英語版
Gracilidris

''Gracilidris'' is a genus of dolichoderine ants with nocturnal behaviour; thought to have gone extinct 15-20 million years ago, they have been found in Paraguay, Brazil, and Argentina and were described in 2006.〔Wild, A. L. and F. Cuezzo. 2006. Rediscovery of a fossil Dolichoderine ant lineage (Hymenoptera: Formicidae: Dolichoderinae) and a description of a new genus from South America. ''Zootaxa'' 1142: 57-68. ISSN: (1175-5334 ) (PDF )〕
The single existing fossil in Dominican amber makes the genus a Lazarus taxon. The only known extant species, ''Gracilidris pombero'', nests in small colonies in the soil. These ants have been described only very recently and little is known about them.
==Species==

* †''Gracilidris humiloides'' (Wilson, 1985)
* ''Gracilidris pombero'' Wild & Cuezzo, 2006

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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