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Class: GASTROPODA
--- Taxon Tree: HETEROBRANCHIA [Subclass]-OPISTHOBRANCHIA [Infraclass]-CEPHALASPIDEA [Order]
------ Family: CEPHALASPIDAE Huxley, 1861 † (Sea) (FOSSIL)
DB counters=35, Genus=5, Subgenus=0, Species=24, Subspecies=0, Synonyms=5, Images=2
DB counters include Fossil taxa: Species=24, Subspecies=0
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acadica, Cephalaspis acadica Robertson, 1936 † (FOSSIL)
altus, Cylindrites altus Morris & Lycett, 1851 † - syn of: Rugalindrites altus (Morris & Lycett, 1851) † (FOSSIL)
angulatus, Cylindrites angulatus Morris & Lycett, 1851 † (FOSSIL)
blakei, Cylindrites blakei Cox & Arkell, 1950 † (FOSSIL)
brevispira, Cylindrites brevispira Hudleston, 1896 † (FOSSIL)
bullatus, Cylindrites bullatus Morris & Lycett, 1851 † - syn of: Goniocylindrites bullatus (Morris & Lycett, 1851) † (FOSSIL)
campbelltonensis, Cephalaspis campbelltonensis Whiteaves, 1881 † (FOSSIL)
canadensis, Cephalaspis canadensis Robertson, 1936 † (FOSSIL)
cylindricus, Cylindrites cylindricus Morris & Lycett † (FOSSIL)
dawsoni, Cephalaspis dawsoni Lankester, 1870 † (FOSSIL)
deserti, Cylindrites deserti Douvillé, 1916 † (FOSSIL)
excavatus, Cylindrites excavatus Morris & Lycett, 1851 † - syn of: Sinespirites excavatus (Morris & Lycett, 1851) † (FOSSIL)
formosus, Cylindrites formosus Cragin, 1893 † - syn of: Globiconcha formosa (Cragin, 1893) † (FOSSIL)
grindrodi, Didymaspis grindrodi Lankester, 1867 † (FOSSIL)
jexi, Cephalaspis jexi Traquair, 1893 † (FOSSIL)
laticeps, Cephalaspis laticeps Traquair, 1890 † (FOSSIL)
lightbodii, Cephalaspis lightbodii Lankester, 1870 † (FOSSIL)
lyelli, Cephalaspis lyelli (Agassiz, 1835) † (FOSSIL)
murchisoni, Cephalaspis murchisoni Egerton, 1857 † (FOSSIL)
novaescotiae, Cephalaspis novaescotiae Denison, 1955 † (FOSSIL)
pagei, Cephalaspis pagei Lankester, 1870 † (FOSSIL)
powriei, Cephalaspis powriei Lankester, 1870 † (FOSSIL)
pustulifera, Eukeraspis pustulifera (Agassiz, 1839) † (FOSSIL)
pyriformis, Cylindrites pyriformis Morris & Lycett † (FOSSIL)
richardsoni, Trochactaeonina richardsoni Newton, 1895 † (FOSSIL)
salweyi, Cephalaspis salweyi Egerton, 1857 † (FOSSIL)
striatus, Cylindrites striatus Lissajous, 1923 † (FOSSIL)
westolli, Cephalaspis westolli Russell, 1954 † (FOSSIL)
whiteavesi, Cephalaspis whiteavesi Traquair, 1890 † - syn of: Cephalaspis campbelltonensis Whiteaves, 1881 † (FOSSIL)
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