A Biostratigraphic List of
Fossil Cephalopods in Utah
Cretaceous System
Late Cretaceous
Series
Campanian Stage
Didymoceras nebrascense Zone in the Sego Sandstone
Scaphites sp.
Baculites sp.
Didymoceras n. sp.
Oxybeloceras crassum (Whitfield)
Placenticeras sp. (? Intercalare Meek
1876b)
Baculites gregoryensis Zone in the Mancos Shale
Menuites portlocki Hall & Meek 1856
Baculites asperiformis Zone in the Buck Tongue of the Mancos
Shale
Baculites asperiformis? Meek 1876b
Placenticeras planum hyatt 1903 (P. syrtale ?)
Baculites obtusus Zone in the Mancos Shale
Trachyscaphites praespiniger Cobban & Scott 1964
Scaphites hippocrepis I Zone in the Mancos Shale
Haresiceras fisheri Reeside 1927b
Scaphites hippocrepis (DeKay) 1827
Scaphites nanus Reeside 1927b
Baculites aquilaensis Reeside 1927b
Baculites haresi Reeside 1927b
Santonian Stage
Desmoscaphites bassleri Zone in the Upper Mancos and Upper
Emery Sandstone
Desmoscaphites bassleri Reeside 1927b
Haresiceras mancosense (Reeside) 1927b
Scaphites leei Reeside 1927b
Baculites asperiformis ? Meek 1876b
Baculites thomi Reeside 1927b
Placenticeras guadalupae (Roemer) 1852 (P. syrtale ?)
Eutrephoceras alcesense Reeside 1927b
Clioscaphites vermiformis Zone in
the Lower Emery Sandstone and Garley Canyon Sandstone
Eutrephoceras alcesense Reeside 1927b
Clioscaphites vermiformis (Meek & Hayden) 1862
Baculites codyensis Reeside 1927a
Pseudobaculites wyomingensis Cobban 1952
Texanites texanus (Roemer) 1852
Placenticeras pseudocostatum (Johnson) 1903
Placenticeras planum Hyatt 1903
Coniacian Stage
Scaphites depressus Zone in the
Mancos Shale
Scaphites binneyi Reeside 1927a
Scaphites depressus Reeside 1927a
Allocrioceras burkhardti Kennedy and Cobban 1991
Phlycticrioceras trinodosus (Geinitz) 1850
Neocrioceras maximum Kennedy and Cobban 1991
Neocrioceras sp.
Baculites codyensis Reeside 1927a
Binneyites parkensis Reeside 1927a
Protexanites bourgeoisianus (d'Orbigny) 1850
Scaphites ventricosus Zone in the Mancos Shale
Scaphites tetonensis Cobban 1951b
Scaphites preventricosus Zone in
the Blue Gate Shale Member of the Mancos
Shale
Eutrephoceras n. sp.
Yezoites frontierensis (Cobban) 1951b
Scaphites impendicostatus Cobban 1951b
Scaphites preventricosus Cobban 1951b
Yezoites uintensis (Cobban) 1951b
Allocrioceras hazzardi Young 1963
Baculites mariasensis Cobban 1951a
Placenticeras fritschi de Grossouvre,
1894
Peroniceras dravidicum (Kossmat) 1895
Forresteria alluaudi (Boule, Lemoine & Thevenin) 1907
Turonian Stage
Scaphites whitfieldi Zone
in the Juana Lopez Member of the Mancos Shale
Scaphites whitfieldi Cobban 1951b
Prionocyclus novimexicanus (Marcou) 1858
Baculites yokoyamai Tokunaga and
Pteroscaphites
Scaphites ferronensis Zone
in the Juana Lopez Member of the Mancos Shale
Scaphites ferronensis Cobban 1951b
Pteroscaphites
Prionocyclus wyomingensis Meek 1876b
Baculites yokoyamai Tokunaga and
Placenticeras pseudoplacenta Hyatt 1903
Scaphites warreni Zone in the Juana Lopez Member of the
Mancos Shale and the Frontier Formation
Scaphites warreni Meek and Hayden 1860
Baculites sp.
Baculites undulatus d'Orbigny 1850
Baculites yokoyamai Tokunaga and
Prionocyclus wyomingensis Meek 1876b
Prionocyclus macombi Zone in the
Juana Lopez Member of the Mancos Shale and the Frontier Formation
Coilopoceras colleti Hyatt 1903
Coilopoceras inflatum Cobban and Hook 1980
Scaphites carlilensis Morrow 1935
Prionocyclus macombi Meek 1876a
Prionocyclus hyatti Zone in the
Ferron Sandstone Member of the Mancos Shale and the Tropic Shale
Scaphites carlilensis Morrow 1935
Placenticeras pseudoplacenta Hyatt 1903
Prionocyclus hyatti (
Prionocyclus albinus Fritsch 1872
Collignoniceras woollgari Zone
in the Tropic Shale and/or the Tununk Shale
Allocrioceras sp.
Baculites sp.
Baculites yokoyamai Tokunaga and
Collignoniceras woollgari (Mantell) 1822
Mammites nodosoides Zone in the Tropic Shale
Fagesia catinus (Mantell) 1822
Watinoceras devonense Cobban 1988b
Watinoceras sp.
Morrowites depressus (Powell) 1963
Vascoceras birchbyi Zone in the Tropic Shale
Vascoceras birchbyi Cobban and Scott 1972
Cenomanian Stage
Neocardioceras juddii Zone in the Tropic Shale
Neocardioceras juddii (Barrois and DeGuerne) 1878
Sciponoceras gracile Zone in the
Tropic Shale and/or Tununk Member of the Mancos Shale
Scaphites sp.
Allocrioceras annulatum (Shumard) 1860
Sciponoceras gracile (Shumard) 1860
Placenticeras cumminsi Cragin 1893
Euomphaloceras septemseriatum (Cragin) 1893
Pseudocalycoceras angolaense (Spath) 1931
Metoicoceras geslinianum (d'Orbigny) 1850
Metoicoceras sp.
Neogastroplites americanus Zone in the Mowry Shale
Neogastroplites americanus Reeside and Cobban 1960
Neogastroplites cornutus Zone in the Mowry Shale and Aspen
Shale
Neogastroplites cornutus Reeside and Cobban 1960
Jurassic System
Upper Jurassic
Series
Oxfordian Stage
Cardioceras distans Zone in the
Curtis Formation and Redwater Member of the Stump Formation
Lytoceras
Cardioceras ?
Cardioceras cf. C. (S.) obtusum Reeside 1919
Cardioceras cordiforme (Meek and Hayden)
Cardioceras hyatti Reeside 1919
Cardioceras sp.
Cardioceras stantoni Reeside 1919
Cardioceras wyomingense Reeside 1919
Goliathiceras hoveyi (Reeside) 1919
Goliathiceras russelli (Reeside) 1919
Pachyteuthis densus (Meek and Hayden) 1858
Middle Jurassic
Series
Bajocian Stage
Sohlites spinosus Zone in the Carmel Formation
Sohlites spinosus Imlay 1967
Megasphaeroceras rotundum Zone in
the Twin Creek Limestone
Parachondroceras andrewsi Imlay 1967
Parachondroceras filicostatum Imlay 1967
Eocephalites primus Imlay 1967
Eocephalites ? sp. undet. A
Eocephalites ? sp. undet. B
Eocephalites ? sp. undet. C
Megasphaeroceras rotundum Imlay 1962
Normannites ? cf. N. crickmayi (McLearn) 1927
Stemmatoceras arcicostum Imlay 1967
Stemmatoceras n. sp. aff. S. albertense McLearn 1928
Stephanoceras aff. S. nodosum (Quenstedt)
Spiroceras cf. S. orbignyi Baugier and Sauze
Triassic System
Early Triassic
Series
Spathian Stage
Columbites Beds in the Thaynes
Group (Virgin Limestone & equiv.)
'
Phaedrysmocheilus idahoensis (Kummel) 1953
Columbites parisianus Hyatt and Smith 1905
Idahocolumbites nevadi (Kummel) 1969
?
Cordillerites sp.
Pseudosageceras multilobatum Noetling 1905
Prohungarites ? sp.
Tirolites cassianus (Quenstedt)
Ussurites hosei Kummel 1969
Bajarunia Beds in the Thaynes Group
Jeanbesseiceras jacksoni (Hyatt and Smith) 1905
Xenoceltites spencei (Hyatt and Smith) 1905
Tirolites pacificus
Bajarunia confusionensis Guex et. al. 2005
Cowboyiceras farwestense Guex et. al. 2005
Smithian Stage
Glyptophiceras sinuatum/Pseudosageceras augustum Beds
Xenoceltites subevolutus/douglasensis
Glyptophiceras sinuatum
Pseudosageceras
augustum/compressus
Xenoceltites sp.
Hedenstroemia
sp.
Anasibirites Beds in the Thaynes
Group (Sinbad Limestone, Timpoweap, & equiv.)
'Kashmirites' subarmatus Diener 1913
Xenoceltites douglasensis (Mathews) 1929
Xenoceltites hannai (Mathews) 1929
Xenoceltites matheri (Mathews) 1929
Xenoceltites sp.
Cordillerites compressus Mathews 1929
Pseudosageceras multilobatum Noetling 1905
Meekoceras davisi Mathews 1929
Meekoceras hertleini Mathews 1929
Hemiprionites typus (Waagen) 1895
Anasibirites kingianus (Waagen) 1895
Anasibirites multiformis Welter 1922
Gurleyites smithi Mathews 1929
Wasatchites perrini Mathews 1929
Inyoites Horizon of the Owenites
Beds in the Thaynes Group
Churkites noblei Jenks 2007
Guodunites hooveri (Hyatt and Smith) 1905
Xenoceltites cordilleranus (Smith) 1932
Dieneroceras dieneri (Hyatt and Smith) 1905
Pseudosageceras multilobatum Noetling 1905
Juvenites thermarum (Smith) 1927
Inyoites oweni Hyatt and Smith 1905
Owenites koeneni Hyatt and Smith 1905
Owenites carpenteri Smith 1932
Parussuria compressa (Hyatt and
Smith) 1905
Lanceolites compactus Hyatt and Smith 1905
Lanceolites
bicarinatus Smith 1932
Xiaoqiaoceras americanum Brayard
Bylund & Jenks 2013
Lower Owenites Beds Horizons and Beds below in the Thaynes Group
Meekoceras gracilitatis White 1879
Submeekoceras mushbachanum (White) 1879
Dieneroceras dieneri (Hyatt and Smith) 1905
Aspenites acutus Hyatt
andSmith 1905
Wyomingites aplanatus White 1879
Meekoceras gracilitatis White 1879
Arctoceras tuberculatum (Smith) 1932
Permian System
Late Permian Series
From the Kaibab Formation and/or the Black Box Dolomite
Liroceras
Metacoceras
Gastrioceras ?
Early Permian
Series
Roadian Stage
From the
Stenolobulites sinuosus Mikesh, Glenister and Furnish
1988
Tentacle
Hooks
Glochinomorpha stifeli Gordon 1971a
Carboniferous System
? Late Mississippian or ? Early
Pennsylvanian Series
From the Oquirrh Formation
Rayonnoceras ? cf. R.? excentricum Gordon 1965
Reticycloceras sp.
From the Ely Limestone
Zephyroceras friscoense (Miller and Owen) 1944
Late Mississippian
Series
Arnsbergian Stage
Eumorphoceras girtyi Zone
in the Chainman Shale and
Rayonnoceras cf. R. solidiforme Croneis 1926
Euloxoceras
Reticycloceras
Nautilus sp.
Stroboceras texanum (Miller and Youngquist) 1948
Metacanites
Eumorphoceras girtyi Elias 1956
Cravenoceras sp.
Richardsonites richardsonianus
Eosyngastrioceras inexpectans Titus 2000
Syngastrioceras websteri Titus 2000
Tylonautilus sp.
Eumorphoceras rotuliforme Zone
in the Chainman Shale
Rayonnoceras
Delepinoceras californicum Gordon 1964
Glaphyrites millardensis Titus 2000
Proshumardites cf. P. delepinei Schindewolf 1939
Eosyngastrioceras hesperium (Miller and Furnish) 1940
Eumorphoceras rotuliforme Ruan 1981
Pericleites pilatus Ruan 1981
Cryptotyloceras gordoni Titus 2000
Dombarocanites sp.
Metadimorphoceras sp.
Pendleian Stage
Paracravenoceras barnettense Zone
in the Chainman Shale
Rayonnoceras sp.
Valhalites ornatus Girty 1911
Pronorites ? sp.
Edmooroceras plummeri (Miller and Youngquist) 1948
Girtyoceras sp.
Tumulites varians McCaleb, Quinn and Furnish 1964
Cravenoceras kingi (Hall and Whitfield) 1877
Paracravenoceras barnettense (Plummer and Scott) 1937
Stenoglaphyrites merriami (Youngquist) 1949
Hematites barbarae Flower and Gordon 1959
Hematites burbankensis Flower and Gordon 1959
Eosyngastrioceras quadratum Titus 2000
Reticycloceras
Brigantian Stage
Lusitanoceras granosum Zone in
the Chainman Shale
Mitorthoceras perfilosum Gordon 1960
Bactrites cf. B. carbonarius Smith 1903
Pronorites baconi (Miller Youngquist and Nielsen) 1952
Glyphiolobus pseudodiscrepans (
Sulcogirtyoceras ornatissimum (Miller and Youngquist)
1948
Choctawites choctawensis (Shumard) 1863
Lusitanoceras granosum (Portlock) 1843
Lusitanites subcircularis (Miller) 1889
Pachylyroceras utahense (Miller Youngquist and Nielsen)
1952
Goniatites eganensis Zone in the
Chainman Shale
Girtyoceras
hamiltonense Korn & Titus 2011
Praedaraelites
loeblichi (Miller & Furnish) 1940
Goniatites
sowerbyi Korn & Titus 2011
Goniatites
eganensis Korn & Titus 2011
Kazakhoceras
bylundi Korn & Titus 2011
Metadimorphoceras
richardsi Korn & Titus 2011
Goniatites deceptus Zone in the
Chainman Shale
Girtyoceras gordoni Korn & Titus 2011
Girtyoceras gordoni Zone in the
Chainman Shale
Girtyoceras
gordoni Korn & Titus 2011
Dimorphoceras rileyi Korn &
Titus 2011
Praedaraelites
loeblichi (Miller & Furnish) 1940
Goniatites
americanus Gordon 1971b
Kazakhoceras
bylundi Korn & Titus 2011
Girtyoceras primum Zone in the
Chainman Shale
Bactrites sp.
Praedaraelites loeblichi (Miller
& Furnish) 1940
Dimorphoceras rileyi
Korn & Titus 2011
Calygirtyoceras arcticum (Gordon) 1957
Girtyoceras primum Korn
&
Titus
2011
Entogonites acus Korn & Titus 2011
Goniatites americanus Gordon 1971b
Metadimorphoceras mangeri Korn
& Titus 2011
Kazakhoceras bylundi Korn & Titus 2011
Reticycloceras
Calygirtyoceras arcticum Zone in the
Chainman Shale
Bollandoceras
occidentale Korn & Titus 2011
Calygirtyoceras
arcticum (Gordon) 1957
Calygirtyoceras confusionense Korn & Titus 2011
Entogonites borealis Gordon 1957
Entogonites burbankensis Korn & Titus
2011
Praedaraelites
loeblichi (Miller & Furnish) 1940
Goniatites
americanus Gordon 1971b
Kazakhoceras
bylundi Korn & Titus 2011
Metadimorphoceras
mangeri Korn & Titus 2011
Dimorphoceras
rileyi Korn & Titus 2011
Dimorphoceras
worki Korn & Titus 2011
Calygirtyoceras confusionense Zone in
the Chainman Shale
Calygirtyoceras
confusionense Korn & Titus 2011
Entogonites
borealis Gordon 1957
Goniatites
americanum Gordon 1971b
Dimorphoceras
rileyi Korn & Titus 2011
Early
Mississippian Series
Chadian Stage
From the Delle Member of the
Dzhaprakoceras djaprakense (Librovitch) 1927
Dzhaprakoceras gordoni Petersen, Korn & Kullman 2000
Kinderhookian Stage
Protocanites lyoni (Meek and Worthen) 1860
Gattendorfia sp.
Pericyclus sp. indet.
Rotopericyclus brazerensis Gordon 1986
Devonian System
Late Devonian
Series
Famennian Stage
From the Pinyon Peak Limestone
Cyrtoclymenia sp.
From the Pilot Shale
Clymeniid
Dolorthoceras sp.
Imitoceras sp.
Frasnian Stage
From the Guilmette Formation
Manticoceras sp.
Silurian System
Niagaran Stage
From the Laketown Dolomite
Huronia vertebralis Stokes 1824
Ordovician System
Whiterockian Series
Chazyan Stage
Zone O in the
unprepared
unprepared
Kanoshian Stage
Zone N in the Upper Kanosh Shale or
Lehman Formation
Adamsoceras lehmanense Flower 1968a
Wutinoceras davisi Flower 1968a
Ignoceras obliquum Flower 1976
Kiotoceras gilesae Flower 1976
Kiotoceras ibexense Flower 1976
Kiotoceras ? multiseptatum Flower 1976
Aethiosolen
Diestoceras ?
Graciloceras
Litoceras
Litoceras adamsi Flower 1968b
Plectolites
Plectolites costatus Flower 1968b
Zone M in the Kanosh Shale and
Rossoceras sp.
Rangerian Stage
Zone L in the Juab Limestone
and/or Garden City Formation
Juaboceras brathwaitei Flower 1968b
Cameroceras compressum Gil 1988
Cameroceras manueli Gil 1988
Cameroceras n. sp.
Cameroceras sp. indeterminate
cf.
Cameroceras
indet.
Cacheoceras trifidum Flower 1968b
Cacheoceras uninodum Flower 1976
Williamsoceras adnatum Flower 1964b
Williamsoceras ankhiferum Flower 1968b
Williamsoceras cf. ellipticum Flower 1976
Williamsoceras cf. pedunculatum Flower 1968b
Williamsoceras cf. W. adnatum Flower 1964b
Williamsoceras cf. W. ankhiferum Flower 1968b
Williamsoceras compressum Flower 1976
Williamsoceras ellipticum Flower 1976
Williamsoceras pedunculatum Flower 1968b
aff.
Rossoceras
cf.
Rossoceras
Evencoceras raymondi Gil 1988
Rossoceras cf. circulatum Gil 1988
Rossoceras cf. lamelliferum Flower 1964b
Rossoceras circulatum Gil 1988
Rossoceras dentiferum Flower 1968b
Rossoceras lamelliferum Flower 1964b
Rossoceras n. sp.
Rossoceras sp.
Catoraphiceras colon (White) 1877
Walcottoceras monsense (Walcott) 1924
Baltoceratid
indeterminate
Cyptendoceras cf. C. rhythmicum Flower 1964a
Cyptendoceras cf. C. ruedemani Ulrich and Foerste 1936
gen.
sp. indeterminate
Buttsoceras williamsi Flower 1962
indet.
Michelinoceras sp. indet.
Plectolites sp.
Ibexian Series
Blackhillsian Stage
Zone K in the Wah Wah Limestone
Phragmosiphon ? sp.
unnamed
new genus new species
Michelinoceras spp.
Zone J in
the Wah Wah Limestone
Catoraphiceras cf. C. pearsonae Hook and Flower 1977
Catoraphiceras cf. C. stacyae Hook and Flower 1977
Catoraphiceras ibexense Hook and Flower 1977
Catoraphiceras pearsonae Hook and Flower 1977
Catoraphiceras spp.
Protocycloceras aff. P. laswelli Hook and Flower 1977
Protocycloceras laswelli Hook and Flower 1977
Protocycloceras sp. B
Protocycloceras sp. E
Rudolfoceras russelli Hook and Flower 1977
Rudolfoceras ? sp.
Amsleroceras gracile Hook and Flower 1977
Baltoceratid
genus
and
species
indeterminate
Cyptendoceras ? sp.
Rangeroceras hintzei Hook and Flower 1977
Rhabdiferoceras planiseptatum Hook and Flower 1977
Rioceras ? sp.
unnamed
Baltoceratid
Veneficoceras susanae Hook and Flower 1977
Buttsoceras aff. B. novemexicanum Flower 1962
Tajaroceras ? sp.
Tajaroceras spp.
Tajaroceras wardae Hook and Flower 1976
Troedssonellid
genus
and
species
indeterminate
Wardoceras orygoforme Hook and Flower 1977
Curtoceras
Trocholitidae
n. gen.
Trocholitoceras
Deltoceras
Pionoceras
Enigmoceras diaboli Hook and Flower 1977
Bakeroceras wahwahense Hook and Flower 1977
Zone I in the Fillmore Formation
Cyclostomiceras
Tulean Stage
Zone G2 in the Fillmore Formation
Tarphyceras
Protocyclocerid
Zone G1 in the Fillmore Formation
Protocyclocerid
Zone F in the Fillmore Formation
Baltoceratid
Protocyclocerid
Stairsian Stage
Zone E in the Fillmore Formation
Campbelloceras
Bassleroceras
Bisonoceras
Dartonoceras
Zone D in the Fillmore Formation
Clitendoceras
Proendoceras
Manitouoceras
Aphetoceras