Zingiberopsis isonervosa L.Hickey

Plant Fossil Names Registry Number: PFN000837

Act LSID: urn:lsid:plantfossilnames.org:act:837

Rank: species

Reference: Hickey, Leo J. (1977): Stratigraphy and paleobotany of the Golden Valley Formation (Early Tertiary) of western North Dakota. – Memoirs of the Geological Society of America 150: 1–181, 55 pls.

Page of description: 115

Illustrations or figures: pl. 10, figs 1, 2, 4

Name is type for

Zingiberopsis L.Hickey 1977

Types

Holotype USNM 43066, National Museum of Natural History, Smithsonian Institution, Washington, D.C., United States
Figures: pl. 10, fig. 2

Note: Paratypes: USNM 43067 (pl. 10, fig. 4) housed in United States National Museum, Washington, USA and PU 20047, housed in Princeton University, Princeton, USA.

Original diagnosis/description

Leaves elliptic to lanceolate; thus far found only as fragments; l estimated at as much as 50 cm; w from 5 to an estimated 18 cm; base unknown. Leaf texture chartaceous to subcoriaceous.
Venation pinnate; midrib massive, as much as 5 mm wide, extending about three-fourths of the way to the apex; secondaries numerous, spaced 0.33 to 0.5 mm apart, parallel, diverging from the midrib at an angle between 20° and 30°. Tertiaries fine, consisting of nearly straight, approximately perpendicular cross-connections between adjacent secondaries, spaced 1 / mm ro 2 / mm.

Etymology

The specific name is derived from iso (Greek, equal) plus nervosa (Latin, full of nerves).

Stratigraphy

Paleogene, Eocene
Camels Brutte Member, Golden Valley Formation

Locality

United States
loc. 14048 (USNM number)

Plant fossil remain

macro- and meso-fossils-embryophytes except wood

Comments

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