»  Classification of Trilobites of the Rochester Shale

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
*Bumastus sp. 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