''Acuticarpus'' is an extinct genus of

cornute Cornuta is an extinct order of echinoderms. Along with the mitrate Mitrates are an extinct group of stem group echinoderms, which may be closely related to the hemichordates. Along with the cornutes, they form one half of the Stylophora. ...

stylophora The stylophorans are an extinct, possibly polyphyletic group allied to the Paleozoic Era echinoderms, comprising the prehistoric cornutes and mitrates. It is synonymous with the subphylum Calcichordata. Their unusual appearances have led to a va ...

n known from the

Late Cambrian The Furongian is the fourth and final Epoch (geology), epoch and Series (stratigraphy), series of the Cambrian. It lasted from to million years ago. It succeeds the Miaolingian series of the Cambrian and precedes the Lower Ordovician Tremadocia ...

of the Snowy Range Formation,

Wyoming Wyoming ( ) is a landlocked U.S. state, state in the Mountain states, Mountain West subregion of the Western United States, Western United States. It borders Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho t ...

, US.

Etymology

The generic name derives from the combination of the Latin '' acutus'', meaning "sharp edge", and the Greek '' carpos'', meaning "sac", in reference to the sharp edge of its left thecal margin. The specific epithet of ''A. delticus'' references the triangular outline of the theca, while the one of ''A. republicensis'' references Republic Creek, Wyoming, the collection place of its holotype.

References

Carboniferous echinoderms Prehistoric echinoderm genera Taxa described in 1997 {{Paleo-echinoderm-stub