Bill's Fossil Museum

Trilobites of Canada (Ontario):
the cheirurids - Page 1
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Family CHEIRURIDAE  Hawle and Corda, 1847
Subfamily CHEIRURINAE  Hawle and Corda, 1847

bufoceraurus_neg.jpg (19499 bytes)
copyright W.A. Hessin, 1999
copyright W.A. Hessin, 1999

Middle Ordovician
(Blackriverian-Franklinian)

upper Gull River and Bobcaygeon formations

Genus Bufoceraurus Hessin, 1989

Bufoceraurus bispinosus
(Raymond and Barton, 1913)

bufoceraurus_color.jpg (7770 bytes)

gabriceraurus_neg.jpg (16628 bytes)
copyright W.A. Hessin, 1999
copyright W.A. Hessin, 1999

Middle Ordovician
(Franklinian)

Bobcaygeon and lower Verulam formations

Genus Gabriceraurus Pribyl and Vanek, 1985

Gabriceraurus hirsuitus
(Ludvigsen, 1979)

gabriceraurus_bw.jpg (5891 bytes)

ceraurus_plattinensis_neg.jpg (14627 bytes)
copyright W.A. Hessin, 1999
copyright W.A. Hessin, 1999

Middle Ordovician
(Franklinian)

Bobcaygeon and lower Verulam formations

Genus Ceraurus Green, 1832

Ceraurus plattinensis
Foerste, 1920

ceraurus_plattinensis_bw.jpg (8247 bytes)

ceraurus_cf._globulobatus_neg.jpg (13631 bytes)
copyright W.A. Hessin, 1999
copyright W.A. Hessin, 1999

Middle Ordovician
(Franklinian)

Bobcaygeon and lower Verulam formations

Genus Ceraurus Green, 1832

Ceraurus cf. globulobatus
Bradley, 1930

ceraurus_cf._globulobatus_bw.jpg (5941 bytes)

ceraurus_milleranus_neg.jpg (12984 bytes)
copyright W.A. Hessin, 1999
copyright W.A. Hessin, 1999

Upper Ordovician
(Edenian)

Cobourg Formation (Hallowell and lower Hillier members)

Genus Ceraurus Green, 1832

Ceraurus milleranus
Miller and Gurley, 1893

ceraurus_milleranus_color.jpg (6622 bytes)

ceraurus_n.sp._neg.jpg (11182 bytes)
copyright W.A. Hessin, 1999
copyright W.A. Hessin, 1999

Upper Ordovician
(Edenian)

Cobourg Formation (Hillier Member)

Genus Ceraurus Green, 1832

Ceraurus matranseris

ceraurus_n.sp._bw.jpg (7409 bytes)

leviceraurus_neg.jpg (12041 bytes)
copyright W.A. Hessin, 1999
copyright W.A. Hessin, 1999

Upper Ordovician
(Edenian)

Cobourg Formation

Genus Leviceraurus Hessin, 1988

Leviceraurus mammilloides
Hessin, 1988

leviceraurus_bw.jpg (4795 bytes)

VANCOUVER ISLAND TRILOBITES