ABSTRACT -- INTRODUCTION -- GEOLOGIC SETTING -- LOCALITIES -- SYSTEMATIC PALEONTOLOGY -- Order DECAPODA Latreille, 1802 -- Infraorder ASTACIDEA Latreille, 1802 -- Superfamily NEPHROPOIDEA Dana, 1852 -- Family NEPHROPIDAE Dana, 1852 -- Genus Hoploparia McCoy, 1849 -- Hoploparia horrida new species -- Hoploparia tshudyi Schweitzer and Feldmann, 2001 -- Infraorder THALASSINIDEA Latreille, 1831 -- Superfamily CALLIANASSOIDEA Dana, 1852 -- Family CALLIANASSIDAE Dana, 1852 -- Genus Calliax de Saint Laurent, 1973 -- Calliax whiteavesi (Woodward, 1896) -- Genus Neocallichirus Sakai, 1988 -- Neocallichirus manningi new species -- Infraorder PALINURA Latreille, 1802 -- Superfamily PALINUROIDEA Latreille, 1802 -- Family PALINURIDAE Latreille, 1802 -- Genus Linuparus White, 1847 -- Subgenus Linuparus (Thenops) Bell, 1858 -- Linuparus (Thenops) canadensis (Whiteaves, 1884) -- Subgenus Linuparus (Eolinuparus) Mertin, 1941 -- Linuparus (Eolinuparus) vancouverensis (Whiteaves, 1895) -- Infraorder BRACHYURA Latreille, 1802 -- Section PODOTREMATA Guinot, 1977 -- Superfamily DROMIOIDEA de Haan, 1833 -- Family DYNOMENIDAE Ortmann, 1892 -- Genus Acanthodiaulax new genus -- Acanthodiaulax mclayi new species -- Family RANINIDAE de Haan, 1839 -- Subfamily PALAEOCORYSTINAE L˝orenthey in L orenthey and Beurlen, 1929 -- Genus Eucorystes Bell, 1863 -- Eucorystes platys Schweitzer and Feldmann, 2001 -- Subfamily LYREIDINAE Guinot, 1993 -- Genus Macroacaena Tucker, 1998 -- Macroacaena chica new species -- Section HETEROTREMATA Guinot, 1977 -- Superfamily DORIPPOIDEA Macleay, 1838 -- Family NECROCARCINIDAE Förster, 1968 -- Cenomanocarcinus Van Straelen, 1936 -- Cenomanocarcinus beardi new species -- Family ORITHOPSIDAE new family -- Genus Marycarcinus new genus -- Genus Paradoxicarcinus new genus -- Paradoxicarcinus nimonoides new species.

Superfamily PORTUNOIDEA Rafinesque, 1815 -- Family CARCINERETIDAE Beurlen, 1930 -- Genus Longusorbis Richards, 1975 -- Longusorbis cuniculosus Richards, 1975 -- Family PORTUNIDAE Rafinesque, 1815 -- Genus Megokkos Schweitzer and Feldmann,2000b -- Megokkos alaskensis (Rathbun, 1926a) -- Superfamily RETROPLUMOIDEA Gill, 1894 -- Family RETROPLUMIDAE Gill, 1894 -- Genus Archaeopus Rathbun, 1908 -- Archaeopus rostratus new species -- Archaeopus bicornutus new species -- PALEOBIOGEOGRAPHIC IMPLICATIONS -- EVOLUTIONARY AND BIOSTRATIGRAPHIC IMPLICATIONS -- ACKNOWLEDGMENTS -- REFERENCES -- APPENDIX.