Classification of the genus Pterospermites
G. †Pterospermites Heer 1859
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†Pterospermites alaskana Knowlton 1904
†Pterospermites carolinensis Berry 1907
†Pterospermites credneriifolius Berry 1907
†Pterospermites cupanioides Newberry 1868
†Pterospermites dentatus Heer 1868
†Pterospermites grandidentatus Lesquereux 1888
†Pterospermites haguei Knowlton 1899
†Pterospermites longeacuminatus Lesquereux 1891
†Pterospermites magnifolia Knowlton 1904
†Pterospermites minor Ward 1885
†Pterospermites modestus Lesquereux 1891
†Pterospermites neomexicanus Knowlton 1916
†Pterospermites nervosus Knowlton 1918
†Pterospermites obovatus Newberry 1896
†Pterospermites spectabilis Heer 1869
†Pterospermites sternbergii Lesquereux 1872
†Pterospermites undulatus Knowlton 1900
†Pterospermites vagans Heer 1859
†Pterospermites wardii Knowlton 1900
†Pterospermites whitei Ward 1885