Full reference: L. J. Hickey. 1977. Stratigraphy and paleobotany of the Golden Valley Formation (Early Tertiary) of western North Dakota. The Geological Society of America Memoir 150:1-183
Belongs to Protophyllum according to L. J. Hickey 1977
Sister taxa: Protophyllum boreale, Protophyllum crassum, Protophyllum crednerioides, Protophyllum crenatum, Protophyllum denticulatum, Protophyllum dimorphum, Protophyllum haydenii, Protophyllum integerrimum, Protophyllum leconteanum, Protophyllum minus, Protophyllum mudgii, Protophyllum multinerve, Protophyllum nanaimo, Protophyllum nebrascense, Protophyllum obovatum, Protophyllum praestans, Protophyllum pseudospermoides, Protophyllum pterospermifolium, Protophyllum quadratum, Protophyllum querciforme, Protophyllum rugosum, Protophyllum sternbergii, Protophyllum undulatum
Type specimen: USNM 43608. Its type locality is Western Pit of Hebron Brick Co. (USNM 14053), which is in a Wasatchian channel claystone in the Golden Valley Formation of North Dakota.
Distribution:
• Eocene of United States (1: North Dakota collection)
• Paleocene of United States (1: North Dakota)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.