|
| image = TentaculitidDevonian.jpg | image_caption = Tentaculitids from the Devonian of Maryland. | authority = von Schlotheim 1820 }} Tentaculites is an extinct genus conical fossil of uncertain affinity, known from Lower Ordovician to Upper Devonian deposits〔 both as calcitic shells with a brachiopod-like microstructure and carbonaceous 'linings'.〔Wood, G.D., Miller, M.A., and Bergstrom, S.M. 2004. Late Devonian (Frasnian) tentaculite organic remains in palynological preparations, Radom−Lublin region, Poland. Memoirs of the Association of Australian Palaeontologists 29: 253–258.〕 The "tentaculites" (i.e. tentaculita) are also referred to as the styliolinids. == Affinity== The taxonomic classification of tentaculitids is uncertain, but some group them with pteropods. They may also be related to other conical shells of uncertain affinity including cornulitids, microconchids and trypanoporids. Their shell microstructure has warranted their comparison with the brachiopods and phoronids.〔 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「Tentaculites」の詳細全文を読む スポンサード リンク
|