Monoplacophorans
Monoplacophorans are a group of mollusks that were known as fossils before they were discovered to still be alive today. They have a distinctive cap-shaped shell.
Scenella radians is a species of monoplacophoran from the Cambrian of Utah. It was first described as a jellyfish-like animal (chondrophoran hydrozoan), but it is now considered a mollusk by many paleontologists.
Gallery of Monoplacophorans
Note: Marks on all scale bars are centimeters (cm).
Scenella radians Babcock & Robison, 1988
KUMIP 204350 (Holotype) - Spence Shale Member of the Langston Formation, Wellsville Mountains, Box Elder County, Utah. Figure 4.1 in Babcock & Robison (1988).
KUMIP 204347 (Paratype) - Spence Shale Member of the Langston Formation, Wellsville Mountains, Box Elder County, Utah. Figure 4.4 in Babcock & Robison (1988).
KUMIP 204348 (Paratype; part and counterpart) - Chisholm Formation, Drum Mountains, Millard County, Utah. Figures 4.3a, 4.3b in Babcock & Robison (1988).
KUMIP 204349 (Paratype) - Chisholm Formation, Drum Mountains, Millard County, Utah. Figure 4.2 in Babcock & Robison (1988).
KUMIP 204351 (Paratype) - Spence Shale Member of the Langston Formation, Wellsville Mountains, Box Elder County, Utah. Figure 4.5 in Babcock & Robison (1988).
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