Beckspringia communis Licari

Plant Fossil Names Registry Number: PFN000269

Act LSID: urn:lsid:plantfossilnames.org:act:269

Author: G. R. Licari

Rank: species

Reference: Licari, G. R. (1978): Biogeology of the late pre-Phanerozoic Beck Spring Dolomite of eastern California. – Journal of Paleontology 52(4): 767–792.

Page of description: 779

Illustrations or figures: pl. 1, figs 3–6, ?7

Name is type for

Types

Original diagnosis/description

Trichomes as described for the genus but of relatively small diameter (mean 2.5 μm of 109 trichomes measured) and possessing heterocyst-like cells. Morphologic characteristics are given in Table 2.

Etymology

Refers to the great abundance of the small diameter trichomes.

Stratigraphy

Proterozoic, Mesoproterozoic
The fossiliferous outcrops occur 2,900 m below the lowest metazoan trace fossils, are younger than 1.7 b.y. and are correlated to the Apache Group of Arizona, bracketed between radiometric ages of 1.2 and 1.4 b.y.

Locality

United States
Locality 3 of 8/11/68 – Black laminated chert from partially silicified stromatolites within the top one meter of exposed outcrop of the Beck Spring Dolomite on the north slope of the Kingston Range, south side of road 0.5 km east-southeast of Horse Thief Springs, north-eastern San Bernardino County, California. Unsurveyed NE¼ sec. 2, T19N, R10E, of Horse Thief Springs Quadrangle, California-Nevada (1:62,500). Elevation about 1,344 m.