Genus AgeRange Citation Year Order Family OriginalReference Superfamily
AALENIRHYNCHIA JURASSIC SHI & GRANT 1993 RHYNCHONELLA SUBDECORATA DAVIDSON1851 RHYNCHONELLACEA
ABERIA ORDOVICIAN MELOU 1990 ABERIA HAVLICEKI MELOU1990 ORTHACEA
ABORIGINELLA CAMBRIAN KONEVA 1983 ABORIGINELLA DENUDATA KONEVA1983 LINGULACEA
ABREKIA TRIASSIC DAGYS 1974 ABREKIA SULCATA DAGYS1974 RHYNCHONELLACEA
ABSENTICOSTA MISSISSIPPIAN LAZAREV 1991 ABSENTICOSTA ULDZEJTUENSIS SUURSUREN&LAZAREV1991 PRODUCTACEA
ABYSSORHYNCHIA RECENT ZEZINA 1980 HEMITHYRIS CRANEANA DALL1895 RHYNCHONELLACEA
ABYSSOTHYRIS TERTIARY-RECENT THOMSON 1927 TEREBRATULA WYVILLEI DAVIDSON1878 TEREBRATULACEA
ACAMBONA MISSISSIPPIAN WHITE 1865 ACAMBONA PRIMA WHITE1865 RETZIACEA
ACANTHALOSIA CARBONIFEROUS-PERMIAN WATERHOUSE 1986 ACANTHALOSIA DOMINA WATERHOUSE1986 STROPHALOSIACEA
ACANTHAMBONIA ORDOVICIAN COOPER 1956 ACANTHAMBONIA MINUTISSIMA COOPER1956 LINGULACEA
ACANTHATIA DEVONIAN MUIR-WOOD & COOPER 1960 HETERALOSIA NUPERA STAINBROOK1947 PRODUCTACEA
ACANTHOBASILIOLA RECENT ZEZINA 1981 RHYNCHONELLA DOEDERLEINI DAVIDSON1886 RHYNCHONELLACEA
ACANTHOCOSTA MISSISSIPPIAN ROBERTS 1971 ACANTHOCOSTA TEICHERTI ROBERTS1971 PRODUCTACEA
ACANTHOCRANIA ORDOVICIAN-PERMIAN WILLIAMS 1943 CRANIA SPICULATA ROWLEY1908 CRANIACEA
ACANTHOGLYPHA ORDOVICIAN WILLIAMS & CURRY 1985 STREPTIS AFFINIS REED1909 PORAMBONITACEA
ACANTHOPLECTA MISSISSIPPIAN MUIR-WOOD & COOPER 1960 PRODUCTA MESOLOBA PHILLIPS1836 PRODUCTACEA
ACANTHOPRODUCTUS DEVONIAN MARTYNOVA 1970 ACANTHOPRODUCTUS BOGDANOVI MARTYNOVA1970 PRODUCTACEA
ACANTHORHYNCHIA JURASSIC BUCKMAN 1918 ACANTHOTHYRIS PANACANTHINA BUCKMAN&WALKER1889 RHYNCHONELLACEA
ACANTHORTHIS ORDOVICIAN NEUMAN 1977 ACANTHORTHIS TERRENEUVENSIS NEUMAN1977 ORTHACEA
ACANTHOSPIRIFER SILURIAN MENAKOVA 1964 ACANTHOSPIRIFER EDELSCHTEINI MENAKOVA1964 SPIRIFERACEA
ACANTHOSPIRINA MISSISSIPPIAN SCHUCHERT & LEVENE 1929 SPIRIFERA ACICULIFERA ROWLEY1893 SPIRIFERINACEA
ACANTHOTHIRIS JURASSIC ORBIGNY 1850 ANOMIA SPINOSA LINNE1788 RHYNCHONELLACEA
ACANTHOTHYROPSIS JURASSIC KAMYSCHAN 1973 RHYNCHONELLA CROSSI WALKER1869 RHYNCHONELLACEA
ACANTHOTOECHIA ORDOVICIAN WILLIAMS & CURRY 1985 ACANTHOTOECHIA HIBERNICA WILLIAMS&CURRY1985 CLITAMBONITACEA
ACAREORTHIS CAMBRIAN ROBERTS 1990 ACAREORTHIS JELLI ROBERTS1990 BILLINGSELLACEA
ACCULINA ORDOVICIAN MISIUS 1977 ACCULINA ACCULINA MISIUS1977 PLECTAMBONITACEA
ACHUNOPRODUCTUS CARBONIFEROUS USTRITSKY 1971 PRODUCTUS ACHUNOWENSIS STEPANOV1948 PRODUCTACEA
ACIDOTOCARENA CAMBRIAN LIU 1979 ACIDOTOCARENA OXYRIA LIU1979 UNCERTAIN
ACOLOSIA PERMIAN COOPER & GRANT 1976 ACOLOSIA GLABRA COOPER&GRANT1976 RHYNCHONELLACEA
ACOSARINA PERMIAN COOPER & GRANT 1969 ACOSARINA DORSISULCATA COOPER&GRANT1969 ENTELETACEA
ACRITOSIA PERMIAN COOPER & GRANT 1969 ACRITOSIA MAGNA COOPER&GRANT1969 STROPHALOSIACEA
ACROBELESIA RECENT COOPER 1983 GRYPHUS COOPERI HONDT1976 TEREBRATULACEA
ACROBROCHUS TERTIARY-RECENT COOPER 1983 LIOTHYRELLA VEMA COOPER1973 TEREBRATULACEA
ACROSACCUS ORDOVICIAN-SILURIAN WILLARD 1928 ACROSACCUS SHULERI WILLARD1928 DISCINACEA
ACROSPIRIFER DEVONIAN HELMBRECHT & WEDEKIND 1923 SPIRIFER PRIMAEVUS STEINIGER1853 SPIRIFERACEA
ACROTHELE CAMBRIAN LINNARSSON 1876 ACROTHELE CORIACEA LINNARSSON1876 ACROTRETACEA
ACROTHYRA CAMBRIAN MATTHEW 1901 ACROTRETA PROAVIA MATTHEW1899 ACROTRETACEA
ACROTHYRIS DEVONIAN HOU 1963 ACROTHYRIS KWANGSIENSIS HOU1963 STRINGOCEPHALACEA
ACROTRETA CAMBRIAN-ORDOVICIAN KUTORGA 1848 ACROTRETA SUBCONICA KUTORGA1848 ACROTRETACEA
ACROTRETELLA SILURIAN IRELAND 1961 ACROTRETELLA SILURIANA IRELAND1961 ACROTRETACEA
ACTINOCONCHUS MISSISSIPPIAN MCCOY 1844 ACTINOCONCHUS PARADOXUS MCCOY1844 ATHYRIDACEA
ACTINOMENA ORDOVICIAN OPIK 1930 STROPHOMENA ORTA OPIK1930 STROPHOMENACEA
ACUMINOTHYRIS MISSISSIPPIAN ROBERTS 1963 ACUMINOTHYRIS TRIANGULARIS ROBERTS1963 SPIRIFERACEA
ACUTATHECA DEVONIAN STAINBROOK 1945 ACUTATHECA PROPRIA STAINBROOK1945 SPIRIFERACEA
ACUTELLA DEVONIAN LJASCHENKO 1973 UCHTOSPIRIFER ANGULOSUS LJASCHENKO1959 SPIRIFERACEA
ACUTILINEOLUS SILURIAN AMSDEN 1978 EOSPIRIFER ACUTOLINEATUSACUTOLINEATUS AMSDEN1968 CYRTIACEA
ACUTORIA DEVONIAN COOPER & DUTRO 1982 ACUTORIA ANGULATA COOPER&DUTRO1982 SPIRIFERACEA
ADAIRIA MISSISSIPPIAN GORDON,HENRY & TREWORGY 1993 PRODUCTUS ADAIRENSIS DRAKE1897 PRODUCTACEA
ADAPTATRYPA DEVONIAN STRUVE 1980 ADAPTATRYPA HECKERI STRUVE1980 ATRYPACEA
ADECTORHYNCHUS MISSISSIPPIAN HENRY & GORDON 1985 STREPTORHYNCHUS SUSPECTUM GIRTY1929 DAVIDSONIACEA
ADENSU ORDOVICIAN POPOV & RUKAVISCHNIKOVA 1986 ADENSU MONOSTRATUM POPOV&AL1986 TRIMERELLACEA
ADIAPHRAGMA DEVONIAN XIAN 1978 ADIAPHRAGMA GANXIENSIS WAN1978 PLECTAMBONITACEA
ADMINICULORIA MISSISSIPPIAN WATERHOUSE & GUPTA 1979 SPIRIFER MIDDLEMISSI DIENER1915 DELTHYRIDACEA
ADMIXTELLA ORDOVICIAN ROZMAN 1978 ADMIXTELLA ORIENTALIS ROZMAN1978 CLITAMBONITACEA
ADMODORUGOSUS MISSISSIPPIAN BRUNTON,MUNDY & LAZAREV 1993 ADMODORUGOSUS CRACOENSIS BRUNTON,MUNDY&LAZAREV1993 PRODUCTACEA
ADNATIDA TERTIARY RICHARDSON 1991 MAGASELLA DEFORMIS TATE1880 TEREBRATELLACEA
ADOLFIA DEVONIAN GURICH 1909 SPIRIFER DEFLEXUS ROEMER1843 SPIRIFERACEA
ADOLFISPIRIFER DEVONIAN KRYLOVA 1962 SPIRIFER JEREMEJEWI TSCHERNYSCHEW1887 SPIRIFERACEA
ADRENIA DEVONIAN CHATTERTON 1973 ADRENIA EXPANSA CHATTERTON1973 STRINGOCEPHALACEA
ADRIANA PERMIAN GREGORIO 1930 ADRIANA OSIENSIS GREGORIO1930 LYTTONIACEA
ADVENINA CRETACEOUS SANDY 1986 ADVENINA OWENI SANDY1986 TEREBRATELLACEA
ADYGELLA TRIASSIC DAGYS 1959 ADYGELLA CUBANICA DAGYS1959 DIELASMATACEA
ADYGELLOIDES TRIASSIC DAGYS 1959 ADYGELLOIDES LABENSIS DAGYS1959 DIELASMATACEA
ADYGELLOPSIS TRIASSIC SUN & SHI 1985 ADYGELLOPSIS PENTAGONALIS SUN&SHI1985 DIELASMATACEA
AEGIRIA SILURIAN OPIK 1933 AEGIRIA NORVEGICA OPIK1933 PLECTAMBONITACEA
AEGIROMENA ORDOVICIAN HAVLICEK 1961 LEPTAENA AQUILA BARRANDE1848 PLECTAMBONITACEA
AEGIRONETES ORDOVICIAN HAVLICEK 1967 STROPHOMENA TRISTIS BARRANDE1879 PLECTAMBONITACEA
AEMULA CRETACEOUS STEINICH 1968 AEMULA INUSITATA STEINICH1968 TEREBRATELLACEA
AENIGMASTRICKLANDIA SILURIAN ZIEGLER 1966 AENIGMASTRICKLANDIA CONTORTA ZIEGLER1966 PENTAMERACEA
AENIGMASTROPHIA SILURIAN BOUCOT 1971 AENIGMASTROPHIA COOPERI BOUCOT1971 STROPHOMENACEA
AENIGMATHYRIS TERTIARY COOPER 1971 AENIGMATHYRIS STEARNSI COOPER1971 TEREBRATULACEA
AEQUSPIRIFERINA TRIASSIC YANG & YIN 1962 AEQUSPIRIFERINA MULTIPLICATA YANG&YIN1962 SPIRIFERINACEA
AEROTHYRIS RECENT ALLAN 1939 MAGELLANIA MACQUARIENSIS THOMSON1918 TEREBRATELLACEA
AESOPOMUM DEVONIAN HAVLICEK 1965 STROPHOMENA AESOPEA BARRANDE1879 ORTHOTETACEA
AETHEIA TERTIARY-RECENT THOMSON 1915 WALDHEIMIA SINUATA HUTTON1873 RHYNCHONELLACEA
AETHIRHYNCHIA JURASSIC SHI 1990 AETHIRHYNCHIA LENTICULATA SHI1990 RHYNCHONELLACEA
AFGHANOSPIRIFER PERMIAN PLODOWSKI 1968 AFGHANOSPIRIFER BURGUTSCHENSIS PLODOWSKI1968 SPIRIFERACEA
AFILASMA DEVONIAN STEHLI 1961 AFILASMA BEECHERI STEHLI1961 DIELASMATACEA
AGALATASSIA ORDOVICIAN POPOV & HOLMER 1994 AGALATASSIA TRIANGULARIS POPOV&HOLMER1994 LINGULACEA
AGARHYNCHA SILURIAN HAVLICEK 1982 TEREBRATULA FAMULA BARRANDE1847 RHYNCHONELLACEA
AGASTAPLEURA ORDOVICIAN XU 1978 AGASTAPLEURA AENINA XU1978 UNCERTAIN
AGELESIA PERMIAN COOPER & GRANT 1969 AULOSTEGES TRIAGONALIS KING1931 AULOSTEGACEA
AGERINELLA JURASSIC PAJAUD & PATRULIUS 1965 AGERINELLA LYRATA PAJAUD&PATRULIUS1965 THECIDEACEA
AGERITHYRIS JURASSIC RADULOVIC 1991 AGERITHYRIS MINIMA RADULOVIC1991 UNCERTAIN
AGRAMATIA DEVONIAN SOKOLSKAJA 1948 PRODUCTUS AGRAMATI NALIVKIN1934 PRODUCTACEA
AGULHASIA RECENT KING 1871 AGULHASIA DAVIDSONII KING1871 TEREBRATULACEA
AGYREKIA CAMBRIAN KONEVA 1979 AGYREKIA ALTA KONEVA1979 KUTORGINACEA
AHTIELLA ORDOVICIAN OPIK 1932 AHTIELLA LIRATA OPIK1932 PLECTAMBONITACEA
AIDYNKULIRHYNCHIA JURASSIC OVTSHARENKO 1983 AIDYNKULIRHYNCHIA AIDYNKULENSIS OVTSHARENKO1983 RHYNCHONELLACEA
AIKARHYNCHA DEVONIAN HAVLICEK 1990 RHYNCHONELLA PRAECOX BARRANDE1879 RHYNCHONELLACEA
AIRTONIA MISSISSIPPIAN COPE 1934 AIRTONIA HUDSONI COPE1934 CHONETACEA
AJUKUZELLA JURASSIC OVTSHARENKO 1983 AJUKUZELLA AJUKUZENSIS OVTSHARENKO1983 TEREBRATELLACEA
AKATCHANIA PERMIAN KLETS 1988 AKATCHANIA PLANA KLETS1988 PRODUCTACEA
AKELINA ORDOVICIAN SEVERGINA 1967 AKELINA AKELINA SEVERGINA1967 PLECTAMBONITACEA
AKMOLINA CAMBRIAN POPOV & HOLMER 1994 AKMOLINA OLENTENSIS POPOV&HOLMER1994 ACROTRETACEA
AKOPOVORHYNCHIA CRETACEOUS SMIRNOVA 1990 AKOPOVORHYNCHIA AKOPOVI SMIRNOVA1990 RHYNCHONELLACEA
AKSARINAIA CAMBRIAN KONEVA 1992 AKSARINAIA TRIQUIETRA KONEVA1992 LINGULACEA
AKTASSIA ORDOVICIAN POPOV 1976 AKTASSIA TRIANGULARIS POPOV1976 ACROTRETACEA
ALA MISSISSIPPIAN NALIVKIN 1979 ALA TAU NALIVKIN1979 SPIRIFERACEA
ALABUSHEVOTHYRIS CRETACEOUS SMIRNOVA 1994 ALABUSHEVOTHYRIS ANGUSTA SMIRNOVA1994 CLATHRITHYRIDACEA
ALASKOSPIRA SILURIAN KIRK & AMSDEN 1952 ALASKOSPIRA DUNBARI KIRK&AMSDEN1952 CYRTIACEA
ALATIFORMIA DEVONIAN STRUVE 1963 SPIRIFER ALATIFORMIS DREVERMANN1907 SPIRIFERACEA
ALATOCHONETES PERMIAN LIANG 1990 ALATOCHONETES ALATA LIANG1990 CHONETACEA
ALATOPRODUCTUS PERMIAN CHING & ZHU 1978 ALATOPRODUCTUS TRUNCTUS CHING&ZHU1978 STROPHALOSIACEA
ALATORTHOTETINA PERMIAN HE & ZHU 1985 ALATORTHOTETINA SICHUANENSIS HE&ZHU1985 ORTHOTETACEA
ALATOTHYRIS PERMIAN WATERHOUSE & GUPTA 1986 SPIRIFER HAUERI STACHE1878 ATHYRIDACEA
ALDANISPIRIFER DEVONIAN ALEKSEEVA 1967 ALDANISPIRIFER HELENAE ALEKSEEVA1967 SPIRIFERACEA
ALDANOTRETA CAMBRIAN PELMAN 1977 ALDANOTRETA SUNNAGINENSIS PELMAN1977 PATERINACEA
ALDINGIA TERTIARY-RECENT THOMSON 1916 TEREBRATELLA FURCULIFERA TATE1880 TEREBRATELLACEA
ALEKSEEVAELLA DEVONIAN BARANOV 1980 ALEKSEEVAELLA SULCATA BARANOV1980 RHYNCHONELLACEA
ALEXENIA PENNSYLVANIAN IVANOVA 1935 ALEXENIA RETICULATA IVANOVA1935 PRODUCTACEA
ALICHOVIA ORDOVICIAN GORJANSKY 1969 ALICHOVIA RAMISPINOSA GORJANSKY1969 SIPHONOTRETACEA
ALICONCHIDIUM SILURIAN ST.JOSEPH 1942 ALICONCHIDIUM YASSI ST.JOSEPH1942 PENTAMERACEA
ALIMBELLA ORDOVICIAN ANDREEVA 1960 ALIMBELLA ARMATA ANDREEVA1960 PORAMBONITACEA
ALIPUNCTIFERA TRIASSIC WATERHOUSE 1975 SPIRIFERINA KAIHIKUANA TRECHMANN1918 SPIRIFERINACEA
ALIQUANTULA TERTIARY RICHARDSON 1991 WALDHEIMIA INSOLITA TATE1880 TEREBRATELLACEA
ALISINA CAMBRIAN ROWELL 1962 OBOLELLA ATLANTICA WALCOTT1890 OBOLELLACEA
ALISPIRA SILURIAN NIKIFOROVA 1961 ZYGOSPIRA GRACILIS NIKIFOROVA1961 ATRYPACEA
ALISPIRIFER PENNSYLVANIAN CAMPBELL 1961 ALISPIRIFER LAMINOSUS CAMPBELL1961 SPIRIFERACEA
ALISPIRIFERELLA PERMIAN WATERHOUSE & WADDINGTON 1982 SPIRIFER KEILHAVIIORDINARIA EINOR1939 SPIRIFERACEA
ALITARIA MISSISSIPPIAN COOPER & MUIR-WOOD 1967 PRODUCTUS EXPANSUS KONINCK1842 PRODUCTACEA
ALITHYRIS CRETACEOUS SUN 1981 ALITHYRIS SHIQUANHEENSIS SUN1981 TEREBRATULACEA
ALLANELLA DEVONIAN CRICKMAY 1953 SPIRIFER ALLANI WARREN1944 SPIRIFERACEA
ALLANETES DEVONIAN BOUCOT & JOHNSON 1967 ALLANETES NEOZELANICA BOUCOT&JOHNSON1967 CHONETACEA
ALLORHYNCHOIDES DEVONIAN SAVAGE,EBERLEIN & CHURKIN 1978 ALLORHYNCHOIDES KIRKI SAVAGE&AL1978 RHYNCHONELLACEA
ALLORHYNCHUS MISSISSIPPIAN-PERMIAN WELLER 1910 RHYNCHONELLA HETEROPSIS WINCHELL1865 RHYNCHONELLACEA
ALMERARHYNCHIA CRETACEOUS CALZADA 1974 ALMERARHYNCHIA VIRGILIANA CALZADA1974 RHYNCHONELLACEA
ALMIRALTHYRIS TERTIARY CALZADA 1994 TEREBRATULA SAMPELAYOI BATALLER1943 TEREBRATULACEA
ALMORHYNCHIA JURASSIC OVTSHARENKO 1983 RHYNCHONELLA URTABUSENSIS MOISSEIEV1935 RHYNCHONELLACEA
ALOROSTRUM DEVONIAN SAVITSKII 1992 ALOROSTRUM ELEGANS SAVITSKII1992 RHYNCHONELLACEA
ALPHACHORISTITES