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Trilobite Genera / Species I Trilobite Formations I Trilobite Locations


TRILOBITE GENERA AND SPECIES LIST
for Genera beginning with letter O

Ogygopsis (Walcott, 1889)

Ogygopsis batis (Walcott, 1916)
Ogygopsis elongata (McLaughlin and Enbysk, 1950) [old name Taxioura elongata McLaughlin and Enbysk, 1950}
Ogygopsis klotzi (Rominger, 1889 – or 1887?)
Ogygopsis spinulosa (Rasetti, 1951)
Ogygopsis typicalis (Resser, 1939b)

Olenellus (Hall, 1861)

Olenellus arcuatis (Palmer, in Palmer & Halley 1979) [Palmer & Repina, 1993 made this species the type species of Arcuolenellus]
Olenellus argentus (Walcott, 1910) [=Esmeraldina argenta Walcott, 1910 (in L. Bohach, unpubl. dissertation)]
Olenellus brachyomma (Palmer, in Palmer & Halley 1979)
Olenellus chiefensis (Palmer, 1998)
Olenellus clarki (Resser, 1928) = Olenellus (Paedeumias) clarki
Olenellus (Mesonacis) cylindricus (Palmer)
[Olenellus euryparia (Palmer, in Palmer & Halley) 1979] = Bolbolenellus euryparia (Palmer, in Palmer & Halley 1979)
Olenellus fowleri (Palmer, 1998)
Olenellus fremonti (Walcott, 1910) = Olenellus (Mesonacis) fremonti
Olenellus gilberti (Meek, 1874) or is it Meek in White, 1874?
Olenellus gilberti sensu (Best, 1952) = Olenellus schucherti
Olenellus granulatus (Palmer)
Olenellus howelli (Meek, 1874) or is it Meek in White, 1874?
Olenellus sp. cf. Olenellus laxocules (Fritz, 1972) [Mural Formation]
Olenellus mojavensis (Crickway, 1933) = Bristolia mohavensis (Crickway, 1933)
Olenellus multinodus (Palmer, in Palmer & Halley 1979) [Palmer & Repina, 1993 made this species the type species of Nephrolenellus]
Olenellus muralensis (Fritz, 1992)
Olenellus nevadensis (Walcott, 1910) = Olenellus (Paedeumias) nevadensis
Olenellus puertoblancoensis (Lochman, 1952) [Type from the Buelna Formation, Caborca, Mexico and reported from the Gold Ace Limestone Member, Carrara Formation by Palmer & Halley (1979) and the top of the Mule Spring Limestone, western Nevada by Sundberg & McCollum (2003b)]
Olenellus schofeldi (Best)
Olenellus schucherti (Resser and Howell, 1938)
Olenellus (Paedeumias) cf. transitans (Walcott)
Olenellus (Paedumias) terminatus (Palmer, 1998)
Olenellus terminatus (Palmer, 1998)
Olenellus truemani (Walcott, 1913)
Olenellus truncatooculatus (Fritz, 1992)
"Olenellus" cf. turmalis (Cowie)
Olenellus sp. [Gold Ace Limestone Member, [Carrara Formation]
Olenellus new species A (see Mount, 1980) [Latham Shale Formation]
Olenellus new species B (see Mount, 1980) [Chambless Limestone Formation]
Olenellus new species C (see Mount, 1980) [Cadiz Formation]
Olenellus species indeterminate (see Mount, 1980) [Zabriskie Formation]
Olenellus sp. (see Fritz, 1992) [Mural Formation]
Olenellus sp. [Emigrant Formation]
"Olenellus" n. sp. 1 [Carrara Formation]
"Olenellus" n. sp. 2 (cf. robsonensis Burling) [Carrara Formation]
Olenellus (Olenellus) n. sp. 1 [Carrara Formation]
Olenellus (Olenellus) n. sp. 2 [Carrara Formation]
Olenellus (Olenellus) n. sp. 3 [Carrara Formation]
Olenellus (Mesonacis) n. sp. 1 [Carrara Formation]
Olenellus (Mesonacis) n. sp. 2 [Carrara Formation]
Olenellus (Mesonacis) n. sp. 3 [Carrara Formation]
Olenellus (Paedeumias) n. sp. 1 [Carrara Formation]
Olenellus (Paedeumias) n. sp. 2 [Carrara Formation]

Olenoides (Meek, 187)

Olenoides brighamensis
Olenoides cf. serratus
Olenoides decorus
Olenoides evansi (Resser, 1939a)
Olenoides expansus
Olenoides maladensis (Resser, 1939b)
Olenoides marjumensis
Olenoides nevadensis (Meek, 1870)
Olenoides pugio (Walcott, 1908)
Olenoides cf. Olenoides pugio (Walcott, 1908) [Pika Formation]
Olenoides serratus
Olenoides steptoensis (Fritz, 1968)
Olenoides superbus
Olenoides tricephalus
Olenoides trispinus - should be in “quotes” as it is not yet published (or is it?) ?
Olenoides wasatchensis
Olenoides n. sp. (Marjum (Chisholm?) Formation)
Olenoides sp. (Weeks Formation)
Olenoides spp. (see Palmer, 1964) [Saline Valley Formation, Harkless Formation]
Olenoides n. sp. [Spence Shale]

Olenus?

Olenus? granulatus (Palmer, 1960)
Olenus? wilsoni (Henningsmoen)

Oligometopus

        Oligometopus breviceps (Walcott)

Onchocephalites (Rasetti, 1957)

Onchocephalites claytonensis (Sundberg & McCollum, 2003b)
Onchocephalites sp. (Sundberg and McCollum, 2003)

Onchocephalites laevis (Rasetti, 1957)
Onchocephalites sp. unident.
Onchocephalites? sp.

Onchocephalus (Walcott, 1917)

Onchocephalus depressus (Rasetti, 1951)
Onchocephalus fieldensis (Rasetti, 1951)
Onchocephalus maior (Rasetti, 1951)
Onchocephalus thia (Walcott, 1917b)
Onchocephalussp. [Twin Knobs Formation]
Onchocephalus? n. sp. [Spence Shale]
Onchocephalus sp. (Bonnia-Olenellus Biozone, Inyo-White Mountains)

Onymagnostus (Opik, 1979)

Onymagnostus hybridus (Brogger, 1878) [Marjum Formation, Utah; Secret Canyon Formation, Nevada]
Onymagnostus seminula (Whitehouse, 1939) [Marjum Formation, Utah; Secret Canyon Formation, Nevada]
Onymagnostus seminula (Whitehouse, 1939) [Wheeler Formation]

Oopsites

Oopsites cf. Oopsites hibernicus

Opipeuter (Fortey, 1974)

Opipeuter sp. [Reported by Fortey and Droser, 1999 from the Antelope Valley Formation, Nevada]

Oryctocara (Walcott, 1908)

Oryctocara geikiei (Walcott, 1908)

Oryctocephalites (Resser, 1939b)

Oryctocephalites orientalis (Saito, 1934) [Type from Korea, also reported by Sundberg & McCollum, 2003b from the Monola Formation in eastern California & the Emigrant Formation, western Nevada]
Oryctocephalites palmeri (Sundberg and McCollum, 1997) [From the Pioche Shale in eastern Nevada]
Oryctocephalites rasettii (Sundberg and McCollum, 1997) [Reported from the Pioche Shale only from the Highland Range, eastern Nevada]
Oryctocephalites resseri (Rasetti, 1951) [Type from the Mount Whyte Fm. in B.C., also reported by Sundberg & McCollum, 2003b from the Monola Formation in eastern California]
Oryctocephalites runcinatus (Shergold, 1969) [Type from Australia, also reported by (Sundberg & McCollum, 2003b) from the Emigrant Formation, western Nevada]
Oryctocephalites typicalis (Resser, 1939b)
Oryctocephalites walcotti (Resser 1938) [Type is from the Lakeview Limestone, northern Idaho and from the Spence Shale, southern Idaho & northern Utah]

Oryctocephalus (Walcott, 1886)

Oryctocephalus americanus (Sundberg & McCollum, 2003b) [Type from the Emigrant Formation]; also Oryctocephalus americanus from the Monola Formation
Oryctocephalus indicus (Reed, 1910) [Type from India, also reported by (Sundberg & McCollum, 1997); Oryctocephalus indicus 2003b from the Monola Formation in eastern California & the Emigrant Formation, western Nevada]
Oryctocephalus? maladensis (Resser, 1939b
)
Oryctocephalus nyensis (Palmer, in Palmer & Halley 1979) [Monola Formation]
Oryctocephalus orientalis (Saito, 1934) [Asia & western Nevada]; also Oryctocephalus orientalis from the Monola Formation in eastern California
Oryctocephalus primus (Walcott, 1886) [Type from the Pioche Shale, eastern Nevada and reported by (Sundberg & McCollum, 1997) from only two localities near the town of Pioche]
Oryctocephalus sp. unident.

Oryctocephalusn. sp.
Oryctocephalus new species (see Mount, 1980) [Latham Shale]
Oryctocephalus sp. A [Emigrant Formation]

Orygmaspis

Orygmaspis contracta
Orygmaspis n. sp.
(McKay Group)

Ovatoryctocara?

Ovatoryctocara? sp.