TRILOBITE GENERA AND SPECIES LIST
for Genera beginning with letter P

Paciphacops

Pachyaspis

Pachyaspis deborra (Lochman, 1952)
P. longa (Fritz, 1968)
P. gallagari (Fritz, 1968)
P. typicalis (Resser, 1939b)
P. sp. undet.

Pachycranium (Ross, 1951)

P. faciclunis (Ross, 1951)
P. sp. (Ross, 1951)

Paedeumias (Walcott, 1910)

Paedeumias granulatus (Palmer, 1964, or is it granulatus?)
Paedeumias sp. [Eager Formation]

Paenebeltella (Ross, 1951)

Paenebeltella. vultulata (Ross, 1951)

Pagetia (Walcott, 1916)

Pagetia arenosa (Fritz, 1968)
Pagetia clytia (Walcott, 1916)
Pagetia cf. fossula (Resser, 1938)
Pagetia maladensis (Fritz, 1968)
Pagetia mucrogena (Fritz, 1968)
Pagetia resseri (Kobayashi, 1943)
Pagetia rugosa (Rasetti, 1966)
Pagetia sp. [Swasey Formation]
Pagetia sp. [Carrara Formation, Pyramid Shale Formation]
Pagetia n. sp. [Spence Shale]
Pagetia sp. [Metaline Formation]

Paladin

Paladin sp. [Mount Mark Formation]

Palmettaspis

Esmeraldina / Palmettaspis sp. [Campito Formation]

Panacus (Eddy and McCollum, 1998)

Panacus palmeri (Eddy and McCollum, 1998)

Paraantagmus (Qiu, 1980)

Paraantagmus latus (Yuan & Li, 1999) (Reported in the Emigrant Formation by Sundberg & McCollum, 2003b)

Paracybantyx (Ludvigsen & Tripp, 1990)

Paracybantyx tegartensis (Norford, 1994)

Parahousia

Parahousia constricta n. gen., n. sp. (Palmer, 1960)

Parahystricurus (Ross, 1951)

Parahystricurus carinatus (Ross, 1951)
Parahystricurus fraudator (Ross, 1951)
Parahystricurus oculirotundus (Ross, 1951)
Parahystricurus pustulosus (Ross, 1951)
Parahystricurus.? sp. A (Ross, 1951)
Parahystricurus.? sp. B (Ross, 1951)
Parahystricurus.? sp. C (Ross, 1951)

Paralbertella (Palmer in Palmer & Halley, 1979)

Paralbertella bosworthi (Walcott, 1908)
Paralbertella eiliotys (Fritz, 1968)
Paralbertella judithi (Fritz, (1968)
Paralbertella. lata Fritz, (1968)
Paralbertella. sp. undet.

Parapoulsenia (Rasetti, 1957)

        P. lata Rasetti, 1957

Parehmania Deiss, 1939 [Montana]

        P. arcuate Deiss, 1939 [Montana]
        P. concave Deiss, 1939 [Montana]
        P. princeps Deiss, 1939 [Montana]
        P.? quadrata Deiss, 1939 [Montana]
        P. storeyi Deiss, 1939 [Montana]

        P. sp. (Langston Fm., Spence Tongue)

Parkaspis Rasetti, 1951

        P. drumensis Sundberg, 1994

        P. decamera Rasetti, 1951

        P. endecamera Rasetti, 1951

Peachella Walcott, 1910

        P. brevispina Palmer in Palmer & Halley, 1979

        P. iddingsi (Walcott, 1884)
        P. n. sp.

Peraspis Whittington, 1965

        P. erugata Ross, 1967

Periomma Resser, 1937

        P. n. sp. (see Mount, 1980) [Carrara Formation]

Peronopsis Hawle & Corda, 1847

        P. amplaxis

        P. bidens

        P. bonnerensis (Resser, 1938)

        P. brevispinus (Deiss, 1939) [Montana]

        P. brighamensis (Resser, 1939a)

        P. fallax

        P. gaspensis Rasetti, 1948

        P. intermedius

        P. interstrictus (or interstricta?)

        P. montis (Matthew, 1889)

        P. praecurrens (Westergard 1936)

        P. segmenta

Perrisopyge

        P. triangulata (Blaker and Nelson)

Phalacroma?

        P.? sp.

Phillipsia

        P. major Shumard

        P. peroccidens (Hall and Whitfield)

        P. trinucleata Herrick (?= Sevillia trinucleata)

        “P.” sp. (probably conspecific with Hesslerides arcentensis Brezinski, 2000) (Kelly Formation)

Phillibole

        P. planucauda (Brezinski, 1998)

Pilekia Barton, 1916

        P.? sp. (Ross, 1951)

Piltonia

        P. carlakertisae Brezinski, 2000

Pinctus?

          P.? spp. [Dunderberg Fm.]

Piochaspis Levi-Setti, 1993

        P. sellata Levi-Setti, 1993

Piochiella Sundberg and McCollum, 2003a

        P. peasleensis Sundberg and McCollum, 2003a

Plagiura Resser, 1935

        P. cercops (Walcott, 1917)

        P. extensa Palmer in Palmer & Halley, 1979
        P. minor Palmer in Palmer & Halley, 1979

        P. retracta Palmer in Palmer & Halley, 1979

        P.? cf. P. retracta Palmer and Halley, 1979 [Pika Fm.]

Platycolpus Raymond, 1931 [Platycolpus RAYMOND, 1913a [preocc. replaced by Rasettia].

        P.? sp. Ross, 1951 [=Rasettia? sp. (Ross, 1951)]

Podowrinella Clarkson et al, 1977

        P. rossi Norford, 1994

Poliella Walcott, 1916b

        P. anteros Walcott, 1916b

        P. caranus

        P. denticulata Rasetti, 1951 [Canada & Nevada]
        P. germana (Resser, 1939)
        P. cf. germana (Resser, 1939b) [Spence Fm.]

        P. leipalox Fritz, 1968

        P. lomataspis Palmer in Palmer & Halley, 1979

        P. ovala Sundberg and McCollum, 2003a
        P. prima (Walcott, 1908) [B.C.]

        P. cf. prima (Walcott, 1908) [Pioche Shale, Nevada]

        P. sp. [Dome Limestone]

        P.? sp. [Chisholm Shale]

        P. sp. [Metaline Formation]

Poliellaites Sundberg and McCollum, 2003a

        P. gloriosa Sundberg and McCollum, 2003a

Polypleuraspis Poulsen, 1927

        P. insignis Rasetti 1951 [B.C.]

Poronileus Fortey, 1975

        P. fistulosis Fortey, 1975

        P. vallancei Fortey, 1975

Prehousia

        P. semicircularis n. gen., n. sp. Palmer, 1960

Presbynileus Hintze, 1954

        P. ibexensis (Hintze, 1953)

Presbynileus (Presbynileus)

        P. (P.) elongatus (formerly Paranileus) [Zone H, Utah]

        P. (P.) ibexensis (formerly Paranileus) [Zone I, Utah]

Proagnostus Butts, 1926

        P. sp. (Weeks Fm.)

Proehmaniella Sundberg, 1994

        P. basilica (Resser, 1945)

        P. eldoradensa Sundberg, 1994

        P? granulosa Sundberg, 1994

        P. sp. [Ute Fm., Utah]

Proetides

        P. sp. (in Brezinski, 2000)

Proetus

        P. bairdi

        P. sp. indet. (Gazelle Fm.)

Prohedinia Lermontova & Chernysheva in Chernysheva, 1950

        P. maladensis (Resser, 1939b)

        P. sp. [Langston Fm., Spence Shale]

        P.? n. sp. [Spence Shale]

Proliostracus Poulsen, 1932

        P. contractus Fritz, 1972

        P. sp. (see Fritz, 1992) [Mural Fm.]

Protocalymene Ross, 1967

        P. mcallisteri ROSS, 1967 Antelope Valley Formation, California

        P. n. sp. A (see Fortey and Droser, 1999) [Antelope Valley Formation]

Protopliomerella

        P. contracta (Ross, 1951) [formerly Protopliomerops contracta Ross, 1951]

Protopliomerops Kobayashi, 1934

        P. celsaora Ross, 1951

        P. contracta Ross, 1951 [= Protopliomerella contracta]

        P. superciliosa Ross, 1951

Protopresbynileus Hintze, 1954

        P. cf. glaber Fortey, 1975

        P. utahensis

        P. n. sp. [Antelope Valley Fm., Ninemile Formation]

Psalikilus Ross, 1951

        P. typicum Ross, 1951

        P.? sp. Ross, 1951

Pseudagnostus Jaekel, 1909

        P.? acutus (Kobayashi)

        P. communis (Hall & Whitfield, 1977)

        cf. P. communis Hall and Whitfield, 1877

        P. prolongus (Hall and Whitfield)

        P. sp. 1 of Chatterton & Ludvigsen, 1998

Pseudoalokistocare Sundberg, 1994 is synonymous with Alokistocare (see Sundberg, 1999)

        P. swasii Sundberg, 1994

        P. cf. paranotatum Rasetti, 1951

Pseudoclelandia Ross, 1951

        P. cornupsittaca Ross, 1951

        P. fluxafissura Ross, 1951

        P. lenisora Ross, 1951

Pseudocybele Ross, 1951

        P. altinasuta

        P. lemurei

        P. nasuta Ross, 1951

Pseudohystricurus Ross, 1951

        P. obesus Ross, 1951

        P. rotundus Ross, 1951

        P. sp. Ross, 1951

Pseudomera Holliday, 1942

        P. arachnopyge

        P. cf. barrandei (Billings) [Antelope Valley Limestone, Nevada]

        P. sp. indet. (see Fortey and Droser, 1999) [Antelope Valley Formation]

Pseudomexicella Sundberg, 1994

        P. hestia Sundberg, 1994

Pseudophalacroma Pokrovskaya, 1958

        P. lundgreni (Tullberg, 1880) [Geddes Formation & Secret Canyon Shale, Eureka, Nevada]

Pseudosaratogia

        Pseudosaratogia abnormis Palmer, 1960

        Pseudosaratogia leptogranulata Palmer, 1960

Ptarmigania Raymond, 1928

        P. exigua Resser, 1939b

        P. gordonensis Resser,

        P. rossensis (Walcott, 1917) [B.C.]

P. sp. [Metaline Limestone, Washington State]

Ptarmiganoides Rasetti, 1951

        P. araneicauda Fritz, 1968

        P. bowensis Rasetti, 1951 [B.C.]

        P. crassaxis Palmer in Palmer & Halley, 1979

        P. hexacantha Palmer in Palmer & Halley, 1979

        Ptarmiganoides propinqua (Resser 1939b) (=P. communis)

        P. sp. [Chisholm Shale]

        P.? sp.

Pterocephalia Resser, 1938c

        P. concava Palmer, 1960

        P. elongata Palmer, 1960

        P. norfordi Chatterton & Ludvigsen, 1998

        P. sanctisabae Roemer

        P. n. sp.? (McKay Group)

Ptychagnostus Jaekel, 1909

        Ptychagnostus. acidusus Opik, 1979 [Secret Canyon Shale, Eureka, Nevada]

Ptychagnostus aculeatus (Angelin, 1851) [Lincoln Peak Fm., eastern Nevada]

        Ptychagnostus affinis (Brogger, 1878) [Marjum Fm., Utah; Lincoln Peak Fm., eastern Nevada]

        Ptychagnostus akanthodes Robison, 1964 [Marjum Formation, Utah]

        Ptychagnostus atavus (Tullberg, 1880) [Wheeler Shale, Marjum Formation, Utah]

        Ptychagnostus germanus Opik, 1979 [Wheeler Shale, Marjum Formation, Utah]

        Ptychagnostus gibbus (Linnarsson, 1869) [basal Wheeler Shale Formation, Utah]

        Ptychagnostus hintzei Robison, 1984 [Emigrant Springs & Lincoln Peak Fms., Nevada]

        Ptychagnostus intermedius (Tullberg, 1880) [basal Wheeler Shale, Utah]

       Ptychagnostus michaeli (Marjum Fm.)

        Ptychagnostus occultatus Opik, 1979 [Wheeler Shale, Marjum Fm., Utah]

        Ptychagnostus praecurrens (Westergard, 1936) [Burgess Shale quarry, B.C.]

        Ptychagnostus punctuosus (Angelin, 1851) [Marjum Fm., Utah; Geddes Limestone, Nevada]

        Ptychagnostus seminula (Whitehouse, 1939) [basal Wheeler Shale, Utah]

        Ptychagnostussp. (Wheeler Formation)

        Ptychagnostus sp. (Weeks Formation)

Ptychaspis

        Ptychaspis granulusa (Owen)

Ptychoparella Poulsen, 1927 [Blaker & Peel, 1997 synonymized Syspacephalus Resser, 1936; Elrathina Resser, 1937; Eoptychoparia Rasetti, 1955]

        Ptychoparella antique

        Ptychoparella candace

        Ptychoparella convexa

        P. cordillerae (Rominger, 1887) [formerly Elrathina cordillerae (Rominger, 1887)]

        P. crassus (Rasetti, 1951) [=S. crassus Rasetti, 1951]

        P. erecta

        P. fecunda

        P. gregarius Rasetti, 1951 [=S. gregarius Rasetti, 1951)

        P. hybrida

        P. laticeps Rasetti, 1951 [=S. laticeps Rasetti, 1951]

        P. lickensis

        P. longus [= S. longus Palmer in Palmer & Halley 1979]

        P. nodulosa

        P. obscurus  (Palmer in Palmer & Halley 1979 ) [=S. obscurus Palmer in Palmer & Halley 1979] (currently being worked on)

        P. oculineata

        P. offula

        P. pylas

        P. spencei (Resser 1939a) [=S. spencei (Resser 1939a)]

        P. variosus Sundberg & McCollum, 2003b [=S. variosus Sundberg & McCollum, 2003b]

        P. wheeleri
        P. sp. unident.

        P.? sp. (see Palmer, 1964) (Harkless Fm.) [=S.? sp. (see Palmer, 1964)]

Ptyocephalus Whittington, 1948 [Kirkella Kobayashi, 1942 is a junior synonym of Ptyocephalus, fide WHITTINGTON, 1948]

        P. declivita (Ross, 1951) [formerly Kirkella declevita Ross, 1951

        P. vigilans (Pogonip Fm.)

        P. yersini

        P. sp. [Antelope Valley Fm.? & Ninemile Fm.]

        P. sp. Ross, 1951 [formerly Kirkella sp. (Ross, 1951)]

Pudoproetus

        P. fernglenensis (Weller, 1909)