门: 古虫动物门
纲: 异形虫纲
目: 未定
科: 未定
属: 班府虫属
种: 收缩班府虫
描述:
身体分为长度大致相等的两部分。后体细密分节多达40节，较前节更为灵活。口部在最前端，周围存在冠状纵向褶皱，肛门位于末端尾部的一个小切口之间。从正面看，后体呈顺时针旋转。
Phylum: Vetulicolia Shu et al., 2001
Class: Heteromorphida Shu, 2005
Order：unknown
Family: unknown
Genus：Banffia Walcott, 1911
Specie: Banffia constricta Walcott, 1911
Description:
The body is divided into two broad sections of roughly equal length. The posterior section is finely segmented with up to 40 segments and is clearly more flexible than the anterior section. The mouth is at the front with a crown-like element around it and the anus is terminal and ends between a small caudal notch. The posterior section is twisted along a spiral, turning clockwise as seen from the front.
时代：寒武系乌溜阶
主要产地: 加拿大布尔吉斯页岩生物群
Age: Cambrian Wuliuan Stage
Principal localities: Burgess Shale, Canada
Caron J.B. 2005. Banffia constricta, a putative vetulicolid from the Middle Cambrian Burgess Shale. Transactions of the Royal Society of Edinburgh: Earth Sciences, 96, 95-111.
McMenamin M.A.S. 2019. Cambrian Chordates and Vetulicolians. Geosciences, 9, 354.
裴文瑞. 2021. 寒武纪早期澄江生物群古虫动物门口部结构新知. 西北大学.