Cordaites minshallensis Šimůnek
Plant Fossil Names Registry Number: PFN000360
Act LSID: urn:lsid:plantfossilnames.org:act:360
Authors: Z. Šimůnek
Reference: Šimůnek, Z. (2018): Cuticular analysis of new Westphalian and Stephanian Cordaites species from the USA. – Review of Palaeobotany and Palynology 253: 1–14.
Page of description: 9
Illustrations or figures: figs 1d, 2b; pls VIII, IX
Holotype 698234, United States National Museum, Washington, USA
Figures: pl. VIII, IX
Note: slides prepared from holotype: 344/1–3
Lanceolate leaves with parallel margins. Venation fine, small difference between “thick” vascular strands and “thin” sclerenchymatous bundles. Stomatal complexes on adaxial cuticle prominent, isolated, formed of two reniform lateral, and two small polar subsidiary cells. Stomatal complexes on abaxial cuticle arranged in stomatiferous bands. Lateral subsidiary cells gibbous, typically reniform. Polar subsidiary cells small, more-or-less rounded. Circular crypt developed above the stomatal opening.
After the Minshall coal bed of Indiana, USA.
Shales belowtheMinshall coal bed, Brazil Formation, Bolsovian
USNM 38878; Brazil Coal and Clay Company, Saline Pit #1, Clay County, Indiana
Plant fossil remain
macro- and meso-fossils-embryophytes except wood