Obamacarpa edenensis B.A.Atk., Stockey et G.W.Rothwell

Plant Fossil Names Registry Number: PFN001681

Act LSID: urn:lsid:plantfossilnames.org:act:1681

Authors: B. A. Atkinson, R. A. Stockey & G. W. Rothwell

Rank: species

Genus: Obamacarpa B.A.Atk., Stockey et G.W.Rothwell

Reference: Atkinson, B. A., Stockey, R. A. & Rothwell, G. W. (2017): Tracking the initial diversification of asterids: anatomically preserved cornalean fruits from the early Coniacian (Late Cretaceous) of western North America. – International Journal of Plant Sciences 179(on–line): 21–35., link

Page of description: 27

Illustrations or figures: figs 3, 4

Name is type for

Obamacarpa B.A.Atk., Stockey et G.W.Rothwell 2017


Holotype P14604 B top, University of Alberta (UAPC-ALTA), Edmonton, Canada
Figures: figs 3A, 4A, B

Note: Paratypes: F-554732F-55477 (Condon Museum); P14604 A bot, P145345 D top, P13527 H top (University of Alberta Paleobotanical Collections – UAPC-ALTA).

Original diagnosis/description

Fruits ovoid, 5.0 mm long, 3.0 mm wide. Endocarp with elongate persistent style, smooth external surface, three locules. Transition zone of slightly lignified cells between endocarp and mesocarp, one to four cells thick. Mesocarp of radially elongate thin-walled parenchyma. Up to 10 vascular bundles surrounded by fibers within mesocarp near periphery of endocarp. Epicarp one cell layer thick.


The specific epithet refers to the locality where the fossils were recovered.


Cretaceous, Upper Cretaceous
Comox Formation, early Coniacian, Late Cretaceous (∼89 Ma)


Eden Main: The Ditch (lat. 49°49ʹ39.40''N, long. 125°25ʹ43.50''W), Vancouver Island, British Columbia

Plant fossil remain

macro- and meso-fossils-embryophytes except wood


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