Orontium mackii Bogner, K.R.Johnson, Kvaček et Upchurch

Plant Fossil Names Registry Number: PFN001912

Act LSID: urn:lsid:plantfossilnames.org:act:1912

Authors: J. Bogner, K. R. Johnson, Z. Kvaček & G. R. Upchurch

Rank: species

Reference: Bogner, J., Johnson, K. R., Kvaček, Z. & Upchurch, G. R., Jr. (2007): New fossil leaves of Araceae from the Late Cretaceous and Paleogene of western North America. – Zitteliana, Ser. A 47: 133–147.

Page of description: 138

Illustrations or figures: figs 10–16


Holotype TXSTATE 1001, Paleobotanical Collections, Texas State University, San Marcos, Texas, USA
Figures: figs. 10, 11

Note: Paratypes: TXSTATE 1002, 1003, 1005, 1006, 1029 A, B (figs 12–16).

Original diagnosis/description

Leaves oblong elliptic, entire-margined, venation parallel-pinnate, with inconspicuous midrib, primaries arising near the leaf base, secondary laterals indistinctly differentiated in thickness, parallel with primaries, only primary cross veins developed, widely spaced, curved to sinuous, at highly variable angles, areolation dense, very narrow and elongate.


For Dr. Gregory H. Mack, discoverer of the localities that yield Orontium, and in recognition of his numerous contributions to the geology of New Mexico.


Cretaceous, Upper Cretaceous, Maastrichtian
McRae Formation, Jose Creek Member


United States
TXSTATE Paleobotanical Locality 9115, Near Truth-or-Consequences city, south-central New Mexico

Plant fossil remain

macro- and meso-fossils-embryophytes except wood


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