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・ Allocnemis mitwabae
・ Alloco
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・ Allocortex
・ Allocosa
・ Allocosa brasiliensis
・ Allocosa dufouri
・ Allocota
・ Allocota aurata
・ Allocota bicolor
・ Allocota cyanipennis
・ Allocota viridipennis
・ Allocotesia
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Allocotoceras
・ Allocrangonyx
・ Allocraspeda
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・ Allocrioceras
・ Allocryptobia musae
・ Allocryptopine
・ Allocution
・ Allocution (disambiguation)
・ Allocution (media theory)
・ Allocutive agreement
・ Allocyttus
・ Allod
・ Allodapella


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Allocotoceras : ウィキペディア英語版
Allocotoceras

''Allocotoceras'' is an endocerid from the Lower Ordovician (upper Canadian) of Australia (Tasmania), included in the Endoceratidae, based on small, straight or gently curved siphuncles.
Septal necks, according to Teichert, 1964, are holochoantic, reaching to the previous septum. Endocones are described as having a dorsal wedge, or process, making the internal opening, or endosiphocone, simicircular in cross section. In this sense ''Allocotoceras'' seems to resemble the genus ''Najaceras''.
==References==

*Teichert, C. 1964. Endoceratoidea. Treatise on Invertebrate Paleontology, Part K. Endoceratoidea, Actinoceratoidea, Nautiloidea. Geological Soc. of America and Univ. Kansas Press.
*(''Allocotoceras'' -Paleodb )

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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