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Vetulicola
''Vetulicola'' is a genus of small, Early Cambrian urochordate animals from the Chengjiang biota of China.
==Description==
The type species, ''Vetulicola cuneata'' (Hou, 1987) has a body composed of two distinct parts of approximately equal length. The anterior part is rectangular with a carapace-like structure of four rigid cuticular plates, with a large mouth at the front end. The posterior section is slender, strongly cuticularised and placed dorsally. Paired openings connecting the pharynx to the outside run down the sides. These features are interpreted as possible primitive gill slits. ''Vetulicola cuneata'' could be up to 9 cm long. The ''Vetulicola'' are thought to have been swimmers that were either filter feeders or detritivores.
Other ''Vetulicola'' species described are ''Vetulicola rectangulata'' (Luo & Hou, 1999), ''V. gantoucunensis'' (Luo et al., 2005), ''V. monile'' (Aldridge, Hou, Siveter, Siberet and Gabbott, 2007), and ''V. longbaoshanensis''. The mouth openings of all the other species are smaller, and do not protrude as in ''V. cuneata''. All other species, with the stark exception of ''V. gantoucunensis'', are smaller than the type species.
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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