Angiospermae - Malvales - Sterculiaceae
Parent taxon: Sterculiaceae according to F. H. Knowlton 1919
See also Knowlton 1899 and Liu et al. 1996
Sister taxa: Brachychiton, Byttneriophyllum, Commersonia, Dombeya, Dombeyoxylon, Firmianites, Florissantia, Fremontia, Heritiera, Penosphyllum, Pterospermoxylon, Pterospermum, Reevesia, Sezannella, Sphinxia, Sterculinium, Sterculiocarpus, Sterculioxylon, Sterculioxylon, Sterculiphyllum, Tarrietioxylon, Triplochitioxylon
Subtaxa: Pterospermites alaskana Pterospermites carolinensis Pterospermites credneriifolius Pterospermites cupanioides Pterospermites dentatus Pterospermites grandidentatus Pterospermites haguei Pterospermites longeacuminatus Pterospermites magnifolia Pterospermites minor Pterospermites modestus Pterospermites neomexicanus Pterospermites nervosus Pterospermites obovatus Pterospermites spectabilis Pterospermites sternbergii Pterospermites undulatus Pterospermites vagans Pterospermites wardii Pterospermites whitei
Type: Pterospermites vagans
Ecology: "photoautotroph"
Distribution:
• Eocene of Canada (1: British Columbia collection), United States (1: Wyoming)
• Paleocene of China (1), United States (6: North Dakota)
• Cretaceous of United States (8: Alabama, North Dakota)
Total: 17 collections including 20 occurrences
Specimen images are retrieved through the ePANDDA API.
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