Primitive and weird’ fossil looks like a tulip By Brendan Lynch,
University of Kansas’ Biodiversity Institute, January 2, 2018
http://www.futurity.org/stalked-filter-feeder-siphusauctum-lloydguntheri-1644252-2/
The paper is:
Julien Kimmig, Luke C. Strotz,and Bruce S. Lieberman, 2017,
The stalked filter feeder Siphusauctum lloydguntheri n. sp. from
the middle Cambrian (Series 3, Stage 5) Spence Shale of Utah:
its biological affinities and taphonomy https://doi.org/10.1017/jpa.2017.57
Published online: 07 August 2017
http://www.bioone.org/doi/abs/10.1017/jpa.2017.57
https://www.cambridge.org/core/journals/journal-of-paleontology/article/stalked-filter-feeder-siphusauctum-lloydguntheri-n-sp-from-the-middle-cambrian-series-3-stage-5-spence-shale-of-utah-its-biological-affinities-and-taphonomy/
Yours,
Paul H.