Hyrokybe

Partial cephalon of Hyrokybe globiceps, from Ramsköld (1983).

Belongs within: Acanthoparyphinae.

Hyrokybe is a genus of trilobites known from Eurasia and North America during the Llandovery and Wenlock epochs of the Silurian. Members of this genus have the rostrum fused with the hypostome (Přibyl et al. 1985).

<==Hyrokybe Lane 1972 PVP85
    |--*H. pharanx Lane 1972 PVP85
    |--H. alaica (Weber 1932) PVP85
    |--H. canadensis (Billings 1860) PVP85
    |--H. copelandi (Perry & Chatterton 1977) [=Youngia copelandi] PVP85
    |--H. douglasi (Lamont 1978) PVP85
    |--H. globiceps (Lindström 1885) PVP85
    |--H. hadnagyi Chatterton & Perry 1984 PVP85
    |--H. inermis (Lindström 1885) PVP85
    |--H. julli Chatterton & Perry 1984 PVP85
    |--H. lenzi Chatterton & Perry 1984 PVP85
    |--H. meliceris Lane & Owens 1982 PVP85
    `--H. uralica (Tschernyschew 1893) PVP85

*Type species of generic name indicated

REFERENCES

[PVP85] Přibyl, A., J. Vaněk & I. Pek. 1985. Phylogeny and taxonomy of family Cheiruridae (Trilobita). Acta Universitatis Palackianae Olomucensis Facultas Rerum Naturalium Geographica-Geologica XXIV 83: 107–193.

Ramsköld, L. 1983. Silurian cheirurid trilobites from Gotland. Palaeontology 26 (1): 175–210.