|
| image = Helicoconchus branching.jpg | image_caption = ''Helicoconchus elongatus'' Wilson et al., 2011 from Lower Permian of Texas. | regnum = Animalia | phylum = ''incertae sedis'' | classis = Tentaculita† | ordo = Microconchida† | genus = ''Helicoconchus''† | genus_authority = Wilson, Yancey and Vinn, 2011 | subdivision = | subdivision_ranks =species }} ''Helicoconchus'' is a microconchid genus that occurs in the Lower Permian of Texas. It forms small reef-like bodies of tubes branching from a common origin. The impunctate tubes are greatly elongated for microconchids and have occasional diaphragms with central pits. The tubes branch in two ways: budding from the tube wall and binary fission. They lived in shallow, normal marine environments. == References == 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「Helicoconchus」の詳細全文を読む スポンサード リンク
|