This is a high quality 3D model of Haplophrentis, a fossil hyolith found in Burgess Shale, Canada.
Following the research of Joseph Moysiuk, the Hyoliths had to be filtering epibenthic organisms that lived extensively in the Paleozoic era.
Its flashy arms, called helens, served to elevate the opening of the shells above the sea floor, acting sort of like stilts, allowing the animal to raise during the search for food. Hyolith was probably a Lophophorate, a filter feeder; it fed by straining suspended matter and food particles from water.
 
The model accurately follows the last reconstruction and study, carried out by Joseph Moysiuk.