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abrupta, Schizopea abrupta Ulrich & al., 1931 † (FOSSIL)
advena, Sinuopea advena (Winchell, 1864) † (FOSSIL)
aiens, Horiostomella aiens Sardeson, 1896 † - syn of: Cyclonema aiens (Sardeson, 1896) † (FOSSIL)
amphitrite, Euconia amphitrite (Billings, 1865) † (FOSSIL)
angulata, Schizopea angulata Ulrich & al., 1931 † - syn of: Schizopea typica Ulrich & al., 1931 † (FOSSIL)
appressa, Schizopea appressa Ulrich & al., 1931 † - syn of: Schizopea subrotunda Ulrich & al., 1931 † (FOSSIL)
basiplanata, Sinuopea basiplanata Ulrich & al., 1931 † (FOSSIL)
beekmanensis, Euconia beekmanensis Whitfield, 1889 † - syn of: Euconia etna (Billings, 1865) † (FOSSIL)
cingulata, Sinuopea cingulata Ulrich & al., 1931 † (FOSSIL)
conica, Euconia conica Heller, 1954 † (FOSSIL)
conicus, Jarlopsis conicus Heller, 1954 † - syn of: Euconia conica Heller, 1954 † (FOSSIL)
corrugata, Schizopea corrugata Ulrich & al., 1931 † - syn of: Schizopea normalis Ulrich & al., 1931 † (FOSSIL)
dives, Sellinema dives Perner, 1903 † (FOSSIL)
dubia, Schizopea dubia Ulrich & al., 1931 † (FOSSIL)
elevata, Schizopea elevata Ulrich & al., 1931 † (FOSSIL)
eminencensis, Sinuopea eminencensis (Ulrich & Bridge, 1931) † (FOSSIL)
eminencensis, Taeniospira eminencensis Ulrich & Bridge, 1931 † - syn of: Sinuopea eminencensis (Ulrich & Bridge, 1931) † (FOSSIL)
emminencis, Sinuopea emminencis Ulrich & al., 1931 † (FOSSIL)
etna, Euconia etna (Billings, 1865) † (FOSSIL)
frater, Sellinema frater Perner, 1903 † (FOSSIL)
grandis, Schizopea grandis Ulrich & al., 1931 † (FOSSIL)
humerosa, Sinuopea humerosa Butts, 1926 † (FOSSIL)
humilis, Sinuopea humilis Butts, 1926 † (FOSSIL)
intermedia, Schizopea intermedia Ulrich & al., 1931 † - syn of: Schizopea normalis Ulrich & al., 1931 † (FOSSIL)
leiosomella, Sinuopea leiosomella (Sardeson, 1896) † (FOSSIL)
mosheimensis, Euconia mosheimensis Butts, 1926 † (FOSSIL)
naticoides, Sinuopea naticoides Flower, 1968 † - syn of: Sinuopea emminencis Ulrich & al., 1931 † (FOSSIL)
nigricans, Umbospira nigricans Perner, 1903 † (FOSSIL)
normalis, Schizopea normalis Ulrich & al., 1931 † (FOSSIL)
obesa, Sinuopea obesa Butts, 1926 † (FOSSIL)
obtusa, Sellinema obtusa (Whiteaves, 1892) † (FOSSIL)
otiosa, Horiostomella otiosa Perner, 1903 † (FOSSIL)
parva, Sinuopea parva (Cleland, 1900) † (FOSSIL)
pervetusta, Euconia pervetusta (Conrad, 1838) † (FOSSIL)
primordialis, Schizopea primordialis (Winchell, 1864) † (FOSSIL)
ramseyi, Euconia ramseyi (Billings, 1859) † (FOSSIL)
regalis, Sinuopea regalis Ulrich & al., 1931 † - syn of: Sinuopea sweeti (Whitfield, 1882) † (FOSSIL)
sinuata, Euconia sinuata Flower, 1968 † (FOSSIL)
sinus, Naticasinus sinus Pan & Erwin, 2002 † (FOSSIL)
stclairi, Sinuopea stclairi Ulrich & al., 1931 † (FOSSIL)
subrotunda, Schizopea subrotunda Ulrich & al., 1931 † (FOSSIL)
sweeti, Sinuopea sweeti (Whitfield, 1882) † (FOSSIL)
thule, Euconia thule (Salter) † (FOSSIL)
transitans, Schizopea transitans Ulrich & al., 1931 † (FOSSIL)
typica, Schizopea typica Ulrich & al., 1931 † (FOSSIL)
typicalis, Sinuopea typicalis Butts, 1926 † (FOSSIL)
umbilicata, Euconia umbilicata Dake & Bridge, 1932 † (FOSSIL)
umbilicata, Sinuopea umbilicata Ulrich & al., 1931 † - syn of: Sinuopea vera Ulrich & al., 1931 † (FOSSIL)
vera, Sinuopea vera Ulrich & al., 1931 † (FOSSIL)
wanwankouensis, Schizopea wanwankouensis Yü & Yochelson, 1999 † (FOSSIL)
washburnei, Schizopea washburnei Butts, 1926 † - syn of: Schizopea washburnensis Butts, 1926 † (FOSSIL)
washburnensis, Schizopea washburnensis Butts, 1926 † (FOSSIL)
whittardi, Sinuopea whittardi Poulsen, 1937 † (FOSSIL)
yochelsoni, Umbospira yochelsoni Peel, 1977 † (FOSSIL)
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