Trilobite distribution, upper Franconia Formation (Upper Cambrian), southeastern Minnestoa

R. E. Grant

1962

Article

Journal of Paleontology 36(5):965-998

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Taxa discussed in this work:

• Chariocephalus whitfieldi
• Conocephalites micros
• Drumaspis sabulosa
• Drumaspis tanycodia
• Ellipsocephaloides curtus
• Ellipsocephaloides pepinensis
• Idahoia serapio
• Idahoia wisconsensis
• Monocheilus anatinum
• Monocheilus micros
• Prosaukia ambigua
• Prosaukia misa
• Psalaspis marginata
• Psalaspis patersoni
• Pseudagnostus josephus
• Ptychaspis granulosa
• Ptychaspis miniscaensis
• Ptychaspis tuberosa
• Ptychoparia striata
• Ptychoparia tuberosa
• Saratogia hamula
• Stigmacephalus flexifrons
• Stigmacephalus hudsonensis
• Wilbernia explanatus
• Wilbernia pero

Taxonomy:

• Chariocephalus whitfieldi belongs to Chariocephalus - Hall (1863)
• Conocephalites micros belongs to Conocephalites - Hall (1863)
• Ptychaspis miniscaensis belongs to Ptychaspis - Hall (1863)
• Ptychaspis granulosa belongs to Ptychaspis - Whitfield (1878)
• Ptychoparia striata belongs to Ptychoparia - Whitfield (1878)
• Wilbernia pero belongs to Wilbernia - Walcott (1924)
• Idahoia serapio belongs to Idahoia - Walcott (1924)
• Prosaukia misa belongs to Prosaukia - Ulrich and Resser (1933)
• Prosaukia ambigua belongs to Prosaukia - Ulrich and Resser (1933)
• Wilbernia explanatus belongs to Wilbernia - Twenhofel et al. (1935)
• Ellipsocephaloides curtus belongs to Ellipsocephaloides - Kobayashi (1935)
• Psalaspis patersoni belongs to Psalaspis - Resser (1937)
• Monocheilus micros belongs to Monocheilus - Resser (1937)
• Monocheilus anatinum belongs to Monocheilus - Shimer and Shrock (1944)
• Stigmacephalus hudsonensis belongs to Stigmacephalus - Nelson (1951)
• Ptychoparia tuberosa belongs to Ptychoparia - Feniak (1952)
• Ptychaspis tuberosa belongs to Ptychaspis - Feniak (1952)
• Idahoia wisconsensis belongs to Idahoia - Bell et al. (1952)
• Stigmacephalus flexifrons belongs to Stigmacephalus - Feniak (1952)
• Drumaspis tanycodia belongs to Drumaspis - Grant (1962)
• Pseudagnostus josephus belongs to Pseudagnostus - Grant (1962)
• Ellipsocephaloides pepinensis belongs to Ellipsocephaloides - Grant (1962)
• Drumaspis sabulosa belongs to Drumaspis - Grant (1962)
• Saratogia hamula belongs to Saratogia - Grant (1962)
• Psalaspis marginata belongs to Psalaspis - Grant (1962)