Classification of Mcintosh and Berman 1975

G. †Apatosaurus Marsh 1877
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Apatosaurus ajax Marsh 1877
Apatosaurus louisae Holland 1915
Invalid names: Brontosaurus Marsh 1879 [synonym]
G. †Astrodon Johnston 1859
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Invalid names: Pleurocoelus Marsh 1888 [synonym]
G. †Atlantosaurus Marsh 1877
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Atlantosaurus immanis Marsh 1878
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Invalid names: Apatosaurus laticollis Marsh 1879 [objective synonym]
Atlantosaurus montanus Marsh 1877