†Ehmaniella fronsplanata concava Sundberg 1994 (trilobite)
Artiopoda - Ptychopariida - Alokistocaridae
Full reference: F. A. Sundberg. 1994. Corynexochida and Ptychopariida (Trilobita, Arthropoda) of the Ehmaniella biozone (Middle Cambrian), Utah and Nevada. Contributions in Science 446:1-137
Belongs to Ehmaniella fronsplanata according to F. A. Sundberg 1994
Sister taxa: Ehmaniella fronsplanata convexa, Ehmaniella fronsplanata fronsplanata
Type specimen: LACMIP 11799, a cephalon/head
Ecology: fast-moving epifaunal detritivore
Distribution: found only at Snake Range, LACMIP 15554 (Cambrian of Nevada)