Aenigmacaris
| Aenigmacaris | |
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| †Aenigmacaris cornigerum SCHRAM & HORNER 1979 from the Mississippian (Serpukhovian) Heath Formation of Bear Gulch, Montana. | |
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| Genus: | Aenigmacaris Schram and Horner, 1978  | 
Aenigmacaris is an extinct genus of malacostracan crustacean, which includes the species Aenigmacaris cornigerum and Aenigmacaris minima. Their closest extant relatives are the mantis shrimp.