Sphaerocoryphe

Sphaerocoryphe cranium, copyright St Petersburg Paleontological Laboratory.

Belongs within: Deiphoninae.

Sphaerocoryphe is a genus of trilobites known from warm waters of the Middle and Late Ordovician of Eurasia, North American and Australia (Přibyl et al. 1985).

Characters (from Přibyl et al. 1985): Glabella spherical, bearing a pair of glabellar lobes 1L; thoracic segments with pleural furrows shallow, running longitudinally; pygidium with one or three pairs of spines.

<==Sphaerocoryphe Angelin 1854PVP85
    |--S. (Sphaerocoryphe)PVP85
    |    |--*S. (S.) dentata Angelin 1854PVP85
    |    |--S. (S.) akimbo Tripp 1967PVP85
    |    |--S. (S.) arachniformis Bradley 1930PVP85
    |    |--S. (S.) atlantiades Öpik 1937PVP85
    |    |--S. (S.) carinae Lindström 1953PVP85
    |    |--S. (S.) cranium (Kutorga 1854)PVP85
    |    |--S. (S.) erratica Männil 1958PVP85
    |    |--S. (S.) globiceps (Portlock 1843)PVP85
    |    |--S. (S.) godnovi Raymond 1905PVP85
    |    |--S. (S.) hastata Begg 1940PVP85
    |    |--S. (S.) huebneri (Schmidt 1881)PVP85
    |    |--S. (S.) kingi Ingham 1974PVP85
    |    |--S. (S.) ludvigseni Chatterton 1980PVP85
    |    |--S. (S.) major Ruedemann 1901PVP85
    |    |--S. (S.) maquoketensis Slocom 1913PVP85
    |    |--S. (S.) pemphis Lane 1971PVP85
    |    |--S. (S.) psiles Tripp 1954PVP85
    |    |--S. (S.) punctata Angelin 1854PVP85
    |    |--S. (S.) robusta Walcott 1875PVP85
    |    |--S. (S.) saba Tripp 1962PVP85
    |    |--S. (S.) salteri Billings 1866PVP85
    |    `--S. (S.) thomsoni (Reed 1906)PVP85
    `--S. (Hemisphaerocoryphe Reed 1896) [incl. Ellipsocoryphe Lu 1975]PVP85
         |--S. (*H.) pseudocranium (Nieszkowski 1859)PVP85
         |--S. (H.) dolichocephala (Schmidt 1881)PVP85
         |--S. (H.) elliptica (Lu 1975) [=*Ellipsocoryphe elliptica]PVP85
         |--S. (H.) exserta Webby 1974PVP85
         |--S. (H.) granulata Angelin 1854PVP85
         |--S. (H.) inflata (Nikolaisen 1961)PVP85
         |--S. (H.) schmidti Männil 1958PVP85
         `--S. (H.) sphaerica (Esmark 1837)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.

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