†Penosphyllum cordatum Ward 1885
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Angiospermae - Malvales - Sterculiaceae
Alternative combination: Pterospermites cordatus
Belongs to Penosphyllum according to L. J. Hickey 1977
See also Knowlton 1919
Sister taxa: none
Type specimen: USNM 4201, a leaf
Ecology: "photoautotroph"
Distribution:
• Eocene of United States (2: Colorado, Wyoming collections)
• Clarkforkian of United States (2: North Dakota, Wyoming)
• Paleocene of United States (11: Colorado, Montana, New Mexico, North Dakota, Wyoming)
Total: 15 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
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