TRILOBITE GENERA AND SPECIES LIST
for Genera beginning with letter P

Pachyaspis

        P. 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

        P. granulatus Palmer, 1964 (or is it granulatus?)

        P. sp. [Eager Fm.]

Paenebeltella Ross, 1951

        P. vultulata Ross, 1951

Pagetia Walcott, 1916

        P. arenosa Fritz, 1968

        P. clytia Walcott, 1916

        P. cf. fossula Resser, 1938

        P. maladensis Fritz, 1968

        P. mucrogena Fritz, 1968

        P. resseri Kobayashi, 1943

        P. rugosa Rasetti, 1966

        P. sp. [Swasey Formation]

        P. sp. [Carrara Fm., Pyramid Shale Mbr.]

        P. n. sp. [Spence Shale]

        P. sp. (Metaline Fm.)

Paladin

        P. sp. [Mount Mark Fm.]

Palmettaspis

        Esmeraldina / Palmettaspis sp. (Campito Fm.)
Panacus Eddy and McCollum, 1998

        P. palmeri Eddy and McCollum, 1998

Paraantagmus Qiu, 1980

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

Paracybantyx Ludvigsen & Tripp, 1990

        P. tegartensis Norford, 1994

Parahousia

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

Parahystricurus Ross, 1951

        P. carinatus Ross, 1951

        P. fraudator Ross, 1951

        P. oculirotundus Ross, 1951

        P. pustulosus Ross, 1951

        P.? sp. A Ross, 1951

        P.? sp. B Ross, 1951

        P.? sp. C Ross, 1951
Paralbertella Palmer in Palmer & Halley, 1979

        P. bosworthi (Walcott, 1908)

        P. eiliotys (Fritz, 1968)

        P. judithi Fritz, (1968)

        P. lata Fritz, (1968)

        P. 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 Fm.]

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 Fm.)

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 Fm, California

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

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 Fm.]

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 Fm.]

Pseudomexicella Sundberg, 1994

        P. hestia Sundberg, 1994

Pseudophalacroma Pokrovskaya, 1958

        P. lundgreni (Tullberg, 1880) [Geddes Fm. & 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

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

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

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

        P. akanthodes Robison, 1964 [Marjum Fm., Utah]

        P. atavus (Tullberg, 1880) [Wheeler Shale, Marjum Fm., Utah]

        P. germanus Opik, 1979 [Wheeler Shale, Marjum Fm., Utah]

        P. gibbus (Linnarsson, 1869) [basal Wheeler Shale, Utah]

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

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

        P. michaeli (Marjum Fm.)

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

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

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

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

        P. sp. (Wheeler Formation)

        P. sp. (Weeks Formation)

Ptychaspis

        P. granulusa (Owen)

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

        P. antique

        P. candace

        P. 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)