Gastropoda - Murchisoniina - Lophospiridae

Full reference: J. S. Peel. 1975. Arjamannia, a new Upper Ordovician - Silurian pleurotomariacean gastropod from Britain and North America. Palaeontology 18(2):385-390

Parent taxon: Lophospiridae according to P. J. Wagner 1999

Sister taxa: Biarmeaspira, Donaldiella, Ectomaria, Frodospira, Gyronematinae, Hanusispira, Kawanamia, Longstaffia, Lophospira, Lophospirinae, Loxoplocus, Manzanospira, Paupospira, Platyworthenia, Ptychozone, Ruedemannia, Ruedemanninae, Triredimiculum, Worthenia, Yochelsonospira, Itimaspira

Subtaxa: Arjamannia aulangonensis, Arjamannia bellicarinata, Arjamannia cancellatula, Arjamannia inexpectans, Arjamannia pteronoides, Arjamannia sybellina, Arjamannia thraivensis, Arjamannia turrita, Arjamannia woodlandi

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Type: Murchisonia cancellatula

Ecology: facultatively mobile epifaunal suspension feeder