Classification of Trilobites of the Rochester Shale main content.

Classification of Trilobites of the Rochester Shale

Modified from Whiteley et al. 2002. Trilobites of New York. Cornell University Press

Order Phacopida
 Suborder Cheirurina
 Family Cheiruridae
Cheirurus sp.
 ? Deiphon pisum (Foerste 1893)
Staurocephalus sp.
 Suborder Phacopina
 Superfamily Dalmanitoidea
 *Dalmanites limulurus (Green 1832) Maximum: 8.9 cm
 Suborder Calymenina
 Family Calymenidae
Calymene sp.
 *Calymene niagarensis (Hall 1852) Maximum: 4.1 cm
 *Diacalymene sp. Maximum: 6.35 cm
 Family Homalonotidae
 *Trimerus delphinocephalus (Green 1832) Maximum: 24 cm

Order Corynexochida
 Suborder Illaenina
 Family Illaenidae
 *Bumastus ioxus (Hall 1852) Maximum: 3.8 cm
 *Bumastoides Maximum: 10.4 cm
 *Illaenoides cf. triloba (Weller 1907) Maximum: 11.4 cm

Order Lichida
 Superfamily Lichoidea
 Family Lichidae
Acanthopyge sp.
 * Arctinurus boltoni (Bigsby 1825) Maximum: 19 cm
 * Dicranopeltis nereus (Hall 1863) Maximum: 10.2 cm
Trochurus halli (Foerste 1917)

Order Proetida
 Superfamily Aulacopleuroidea
 Family Aulacopleuridae
Maurotarion sp.
 Superfamily Bathyuroidea
 Family Brachymetopidae
 *Radnoria bretti (Adrain & Tetreault 2005) Maximum: 2.29 cm
 Superfamily Proetoidea
 Family Proetidae
 *Decoroproetus corycoeus (Conrad, 1842) maximum: 3.18 cm

* Trilobites found at Caleb's Quarry