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・ Stereospermum colais
・ Stereospermum kunthianum
・ Stereosphaeria
・ Stereospondyli
・ Stereospondylomorpha
・ Stereostele nevilli
・ Stereosternum
・ Stereosticha
・ Stereostoma
・ Stereotactic biopsy
・ Stereotactic injection
・ Stereotactic radiation therapy
・ Stereotactic surgery
・ Stereotaxic atlas
・ Stereotaxy
Stereotoceras
・ Stereotomy
・ Stereotomy (descriptive geometry)
・ Stereotype
・ Stereotype (album)
・ Stereotype (disambiguation)
・ Stereotype (Karl Wolf album)
・ Stereotype (printing)
・ Stereotype (UML)
・ Stereotype Be
・ Stereotype content model
・ Stereotype embodiment theory
・ Stereotype fit hypothesis
・ Stereotype space
・ Stereotype threat


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


''Stereotoceras'' is a Middle_ and Upper Devonian genus in the oncocerid family Brevicoceratidae that formed a smooth, depressed, gyroconic shell with the dorsum much flatter that the venter. Sutures are straight ventrally but have dorsal lobes. Growth lines outline a ventral hyponomic sinus but are otherwise transverse. The siphuncle in ventral, nummuloidal, with discrete, irregular, actinosiphonate deposits at the septal foramina.
==''References''==

*Sweet. W. C. 1964. Nautiloidea-Oncocerida; Treatise on Invertebrate Paleontology, Part K. Geol Soc of America and Univ Kansas press, R.C. Moore (Ed)

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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