TRILOBITE
GENERA AND SPECIES LIST
(for
western
A to D:
Achlysopsis Fritz, 1968
A. liokata Fritz,
1968
A. hemitora Fritz, 1968
A. typicum (unconfirmed
– please contact us if you know this species)
A. n. sp. [Chisholm Shale]
A. n. sp. [Spence Shale]
A. sp. [Spence Shale]
Aciculolenus Palmer, 1965
A. palmeri Chatterton & Ludvigsen, 1998
Acidiphorus
Raymond, 1925 [Goniotelus Ulrich, 1927 is a junior synonym of Acidiphorus,
fide BRETT & WESTROP, 1996]
A.? lineotuberculatus Fortey and Droser, 1999
A. sp. (mentioned in Ross, 1951) (formerly Goniotelus sp.)
Agnostotes Opik, 1963
A. clavata (Lu in Wang, 1964)
Agnostus Brongniart, 1822 [This genus is not
recognized in Cambrian of western
A. bonnerensis Resser, 1938 [is now Peronopis]
A. brevispinus Deiss, 1939 [is now Peronopis]
A. hastatus Deiss, 1939 [reassigned
to Peronopis montis]
A. robustus Deiss, 1939 [reassigned to Peronopis montis]
Albertella Walcott, 1908
A. fritzi Eddy and McCollum, 1998
A. helena Walcott, 1908
A. highlandensis Eddy
and McCollum, 1998
A. longwelli Palmer in Palmer & Halley, 1979
A. microps Rasetti, 1951
A. proveedora Lochman 1952
A. schenki Resser,
1945
A. spectrensis Palmer in Palmer
& Halley, 1979
A. ? sp. [Langston Fm., Spence Shale]
A. sp. [Pioche Shale - not sure which
species this is]
A. ? sp. (Metaline Fm.)
Albertellina Palmer in
Palmer & Halley, 1979
A. aspinosa Palmer in Palmer & Halley, 1979
Albertelloides
Fritz, 1968
A. dispar (Resser, 1939b)
A. kitai Eddy and McCollum, 1998
A. maladensis (Resser, 1939b)
A. mischi Fritz, 1968
A. pandispinata Fritz, 1968
A. rectimarginatus
Palmer in Palmer & Halley, 1979
A. cf. rectimarginatus
Palmer in Palmer & Halley, 1979
A. sp. [Twin Knobs Fm.]
Alokistocare Lorenz,
1906
A. harrisi (see Altiocculus harrisi)
A. idahoense (see Amecephalus idahoense)
A. laticaudum (see Amecephalus laticaudum)
A. pananotatum Rasetti, 1951
A. scapegoatensis Deiss, 1939a [
A. septum Resser, 1939a
A. spencense
A. subcoronatum
(Hall & Whitfield, 1877)
A. swasii (Sundberg, 1994)
A. sp. [Wheeler Shale]
A. sp.
Alokistocarella
Resser, 1938b
A. brighamensis
Resser 1939b
A.
mexicana Lochman, 1952 [Arrojos
Fm.,
A.
occidens Resser 1939b
A. spencei Resser, 1939a
Altiocculus Sundberg, 1994
A. concavus Sundberg,
1994
A. drumensis
Sundberg, 1994
A. harrisi (Robison, 1971)
A. sp. [Wheeler Shale]
A. sp. [Marjum Fm.]
Amblycranium
Ross, 1951
A. cornutum Ross, 1951
A.? populus Ross,
1951
A. variabile Ross,
1951
Amecephalites
Eddy and McCollum,
1998
A. sundbergi Eddy and McCollum, 1998
Amecephalus Walcott,
1924 (includes Strotocephalus Resser, 1935)
A. agnesensis (Walcott, 1917b)
A. alta Fritz, 1968
A. althea Walcott, 1916
[Arrojos Fm.,
A. arrojosensis (Lochman,
1952) [Arrojos Fm.,
A. cleora (Walcott, 1917b)
A. diffundatus
A. gordonensis (Resser, 1935) [=S.
gordonensis Resser, 1935]
A. idahoense (Resser 1939a) (not idahoensis)
A. laticaudum
(Resser 1939a)
A. modestum (Lochman, 1952)
[Arrojos Fm.,
A. packi (Resser, 1935)
A.
piochensis (Walcott, 1886)
A. sp. A Sundberg
and McCollum, 2000
A. sp. unident.
A. sp. [Chisholm Shale]
A. sp. (
n. sp. aff. Piochaspis
[Chisholm Shale]
A. n. spp. [Spence Shale]
A. sp. 1 [Spence
Shale]
A.? sp. [Twin Knobs
Fm.]
Amechilus
Ross, 1951
A. palaora Ross, 1951
Ameropiltonia
A perplexa Brezinski, 2000
Ameura
A. sangamonensis
(Meek &
Worthen)
Ammagnostus Opik, 1967
A. beltensis
Ampyxina Ulrich, 1922 (or Ampyxoides?
Whittington, 1965)
A. n. sp. [
Ampyxoides Whittington, 1965
A. cf. occipitalis Dean, 1973
A. trigranulatus Palmer, 1960
Anomalocephalus Deiss, 1939 [
A. ornatus Deiss, 1939 [= Ehmaniella ornatus (Deiss, 1939)] [
Anomocare Angelin, 1851
A. sp. [Langston Fm., Spence Shale]
Anoria Walcott, 1924
A. baton Walcott, 1916b [
A. tontoensis (Walcott, 1916) [
Apatolichas Whittington, 1963
A. cf. jukesi (
A. sp. [
Aphelaspis [Labiostria is a junior
synonym of Aphelaspis, fide PALMER, 1965, although this is debated (see
Chatterton & Ludvigsen, 1998)]
A. westropi (Labiostria
westropi)
Arapahoia
A. sp. (Weeks Fm.)
Archaeaspis Repina in Khomentovskii and
Repina, 1965
A. macropleuron Lieberman, 2002
A. nelsoni Lieberman, 2002
Arcuolenellus Palmer & Repina, 1993
A. arcuatis (Palmer, in Palmer & Halley
1979)
A. cf. megafrontalis (Vaccari)
Asaphellina Munier-Chalmas & Bergeron in
Bergeron, 1889
A.? sp. Ross, 1951
Asaphellus
Callaway, 1877
A.? eudocia (Walcott, 1925)
A.? sp. A Ross,
1951
A.? sp. B Ross,
1951
Asaphiscus Meek, 1873
A. wheeleri
Meek, 1873
Aspidagnostus
A. sp. (Weeks Fm.)
Athabaskia Raymond,
1928
A. belus (Walcott, 1916b) [
A. bithus
(Walcott, 1916)
A. howelli (Walcott, 1886)
A. wasatchensis
(Resser, 1939b)
A. n. sp.
A. n. sp. [Spence Shale]
Australosutura
A. llanoensis Brezinski, 1998
A. sp. (in Brezinski, 2000)
Baltagnostus Lochman in Lochman & Duncan,
1944
Basilicus
Salter, 1849
B.? sp. Ross, 1951
Bathynotus
Hall, 1860
B. holopygus (Hall, 1859)
Bathyocos Sundberg, 1994
B. housensis Sundberg, 1994
Bathyuriscidella Rasetti, 1948
B. amplicauda
Bathyuriscus
Meek, 1873
B. adaeus Walcott, 1916
B. atossa Walcott, 1916 [
B. brighamensis
Resser 1939a
B. elegans
B. fimbriatus Robison, 1964
B. formosis Deiss,
1939 = B. haydeni Meek, 1873 [fida Robison, 1964]
B. haydeni Meek, 1873 [
B. rotundatus (Rominger, 1887)
B. rugosus Deiss, 1939 = B.
haydeni Meek, 1873 [fida Robison, 1964]
B. wasatchensis
(Resser 1939b)
B. sp.
[Metaline Fm.]
Bellefontia Ulrich in Walcott, 1924b
B. acuminiferentis Ross,
1951
B. chamberlaini
B. cf. B.
chamberlaini
Benthamaspis Poulsen, 1946
B. sera Fortey and Droser, 1999
Biceratops Pack & Gayle, 1971
B. nevadensis Pack
& Gayle, 1971 [Type from the Bright Angle Shale,
Bienvillia Clark, 1924
B. papulosa (Fortey,
1974)
Blountia
B. sp. (Weeks Fm.)
Bolaspidella Resser, 1937b
B. contracta Robison,
1964
B. drumensis Robison, 1964
B. housensis
(Walcott, 1886)
B. resseri (Miller, 1936) [Pika Fm.]
B.
wellsvillensis (Lochman & Denson, 1944)
B. n. sp. [Marjum Fm.]
B. sp. [Marjum Formation]
B. sp.
Bolaspis Resser, 1935
B. globulifera Deiss, 1939 [
B. grandis Deiss, 1939 [
B. labrosa (Walcott, 1916) [All of
the Deiss 1939 species should be synonymized]
B. minuta Deiss, 1939 [
B.? unica Deiss, 1939 [
B. vera Deiss, 1939 [
Bolbolenellus Palmer & Repina,
1993
B. brevispinus
Palmer, 1998 [Type from the Pioche Shale, eastern
B. euryparia (Palmer, in Palmer & Halley 1979)
[=O. euryparia Palmer, in Palmer & Halley 1979]
B. n. sp. 1 [
Bonnia Walcott, 1916
B. caperata
Palmer, 1964
B. copia Fritz, 1968
B. sp. (see Fritz, 1992) [Mural Fm.]
Brachyaspidion Miller, 1936
B. microps
Robison, 1971
B. sulcatum
Robison, 1964
Brachymetopus
B. indianwellensis Brezinski, 2000
B. cf. pseudometopina
Gauri and Ramovs [Mount Mark Fm.]
Bradyfallotaspis Fritz, 1972
Gen. aff. B. sp. (see Fritz, 1992) [Mural Fm.]
Breviphillipsia
B. semeretis Hessler, 1963
B. sp. (Baird Fm.)
Bristolia Harrington, 1956
B. anteros Palmer in Palmer & Halley, 1979
"Bristolia" brachyoma
(Palmer)
B. bristolensis
(Resser, 1928)
B. fragilis Palmer in Palmer & Halley, 1979
B. harringtoni Lieberman,
1999
B. insolens
(Resser, 1928)
B. mohavensis (Resser, 1928)
(not sure about the correct author, spelling, or generic assessment of this
species)
B. mohavensis (Crickway, 1933) = Olenellus
mojavensis (Crickway, 1933)
"B." mohavensis (Resser,
1928)
B. n. sp. (Mount,
1980, fig. 16) [Latham Shale]
B. n. sp. 1
[
B. n. sp. 2 [
B. n. sp. 3 [
B. n. sp. 4 [
B. n. sp. 5 [
Burlingia Walcott, 1908
B. sp. [Swasey
Formation]
Burnetiella Lochman, 1958
B. leechi
Chatterton & Ludvigsen, 1998
Bynumina
B. globosa (Walcott)
Bynumiella [Bynumiella is a junior
synonym of Clelandia, fide PALMER, 1965]
B.? acuminata Palmer, 1960 [=Clelandia
acuminata]
Bythicheilus
Resser, 1939a
B. alveatum Resser, 1939a [Fritz, 1968, p. 229 notes that B.
alveatum may be conspecific with the type, B. typicum]
B. typicum
Resser, 1939a
Caborcella
Lochman, 1948
C. arrojosensis Lochman, 1948
C. collaris Rasetti, 1951
C. pseudaulax
Palmer in Palmer & Halley, 1979
C. reducta Palmer in Palmer & Halley, 1979
C. n. sp. [Spence Shale]
C. sp. [Langston
Fm., Spence Shale]
Cambroinyoella
Lieberman, 2001
C. wallacei
Lieberman, 2001
Carolinites
Kobayashi, 1940
C. angustagena (= sibiricus)
C. genacinaca Ross, 1951
Carolinites sp. aff. C. genacinaca Ross, 1951
[Fillmore Fm.]
C. sibiricus Chugaeva, 1964
C. n. sp. (see
Fortey and Droser, 1999) [Antelope Valley Fm.]
Cedaria Walcott, 1924
C. minor (Walcott, 1916)
[C. sp. (Weeks Fm.)] = "Gerospina schachti"
Cernuolimbus
C. depressus Palmer, 1960
C.
orygmatos Palmer, 1960
C.
semigranulosus Palmer, 1960
Chancia Walcott, 1924
C. angusta (Resser, 1939a)
C. coriacea (Resser, 1939a)
C. ebdome Walcott,
1924
C. cf.
ebdome Walcott, 1924
C. evax Walcott, 1924
C. venusta (Resser,
1939b)
Chanciaopsis
Sundberg, 1994
C. heteromorphos Sundberg, 1994
Cheilocephalus
C. sp.
Cheirurus Beyrich,
1845
C. cf. C. insignus Beyrich
C. cf. C. niagarensis (of Norford, 1962) = Radiurus
avalanchensis
“Chiasmacantha” (not
formally published (in Beebe,1990,
unpublished dissertation))
“C. cecrops” (not formally
published (in Beebe,1990, unpublished dissertation))
Cirquella
Clappaspis Deiss, 1939
[This genus is a junior synonym of Ehmaniella]
[C. concava] = Ehmaniella concava
[C. convexa] =
Ehmaniella convexa
[C. coriacea] = Ehmaniella coriacea
[C. dotis] = Ehmaniella dotis
[C. hebetis] =
Ehmaniella hebetis
[C. idahoensis] = Ehmaniella idahoensis
[C. lanata] = Ehmaniella lanata
[C. lickensis] =
Ehmaniella lickensis
[C. mcnairi] =
Ehmaniella mcnairi
[C. obscura] =
Ehmaniella obscura
[C. papulata] =
Ehmaniella papulata
[C. singularis] =
Ehmaniella singularis
[C. spencei] = Ehmaniella spencei
[C. striata] =
Ehmaniella striata
[C. typica] =
Ehmaniella typica
Clavaspidella Poulsen,
1927 [Many species of this genus were reassigned to Athabaskia]
C. anax
C. bela
C. bithus
Clelandia Cossman,
1902 [=Bynumiella] [Bynumiella
is a junior synonym of Clelandia, fide PALMER, 1965]
C. acuminata
C. utahensis Ross, 1951
Cliffia Wilson,
1951
C. cf. latagenae (
Cloacaspis Fortey,
1974
C. tesselata Fortey and Droser, 1999
Coelaspis Deiss,
1939 [This genus is a junior synonym of Elrathiella]
C. prima Deiss, 1939 [
Comptonaspis
C. swallowi (Shumard, 1855)
Coosella Lochman,
1936
C. sp. type 1 [Weeks Fm.]
C. sp. type 2 [Weeks Fm.]
Corynexochides Rasetti,
1948
C. prolatus Frizt, 1968
Crassifimbra Lochman,
1947
C. walcotti Resser, 1937
C. n. sp. (see
Mount, 1980) [Carrara Fm.]
C. sp. (Bonnia-Olenellus Biozone,
Crusoia
Cybelopsis Poulsen, 1927
C. cf. C. speciosus Poulsen, 1927
Cybelurus Levitsky, 1962
C. halo Fortey,
1980
Daguinaspis
Delamarina Eddy and
McCollum, 1998
D. brevispinaspis Eddy and McCollum, 1998
Deltina Sundberg, 1994
D. angustigena Sundberg,
1994
D.
limba Sundberg, 1994
“Democephalus” (not
formally published (in Beebe,1990,
unpublished dissertation))
“D. granulatus”
(not formally published (in Beebe,1990,
unpubl. dissertation)) = "Genevievella"
granulatus (Walcott, 1916) (in Shanan Peters dissertation, 2003,
unpubl.)
Densonella Shaw,
1952 (Densonella
is a j.s.s. of Menomonia, fide PRATT, 1992)
[D. semele] (Walcott, 1916) = Menomonia semele
[D. sp.] (Weeks
Fm., not yet described) = Menomonia sp.
Dicanthopyge
?D. sp. (McKay
Group)
Dicranopeltis
D. cf. C. decipiens (Weller, 1907)
Dimeropygiella Ross,
1951
D. caudanodosa Ross, 1951
Ditomopyge
D. parvulus (Girty)
Dixiphopyge
D. armata (Vogdes, 1891)
Dokimocephalus
D. pernasutus Walcott
Dorypyge Dames, 1883
D. swasii Sundberg,
1994
D. n. sp. [SpenceShale]
Dresbachia Walcott, 1916
D. amata Walcott, 1916
D. sp. (Weeks Fm.)
Dunderbergia
D. bigranulosa n. sp. Palmer, 1960
D. nitida (Hall and Whitfield)
D. polybothra n. sp. Palmer, 1960
D.
variagranula Palmer
*Note: not
all of the species are valid and errors in synonomy will be present. We do our
best to keep up to date, but it is difficult to locate all changes. Also, not
all of the authors' names are included, and may not be correct with respect to
(brackets) for generic name changes. Please excuse any mistakes, as this
species list is a meant as a first guide only.
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