†Arctospirifer Stainbrook 1950 (lamp shell)
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Rhynchonellata - Spiriferida - Echinospiriferidae
Parent taxon: Echinospiriferidae according to A. Williams et al. 2006
Sister taxa: Adolfispirifer, Echinospirifer, Enchondrospirifer, Hispidaria, Howittia, Indospirifer, Rigauxia, Sergunkovia
Subtaxa: none
Ecology: stationary epifaunal suspension feeder
Distribution: found only at Threeforks Shale, Jefferson Island Co., Montana (Devonian of Montana)
Specimen images are retrieved through the ePANDDA API.
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