Bullasphaera variegata Licari

Plant Fossil Names Registry Number: PFN000279

Act LSID: urn:lsid:plantfossilnames.org:act:279

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: 789

Illustrations or figures: pl. 3, fig. 4-8

Name is type for


Holotype n/n, Biogeology Clean Laboratory, University of California, Santa Barbara, California, USA
Figures: pl. 3, fig. 6

Note: Licari (1978): The holotype is on thin section C74(9) from the Cloud Collection. Coordinates (13.4, 6.7).

Original diagnosis/description

As for the genus. Of the 245 spheres measured. 67% have diameters be tween 3.1 and 5 μm. Table 1 summarizes morphologic characteristics of the taxon.


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.


United States
Locality 3 of 24/11/66 – Black laminated chert beds 18.5 m below the upper contact of the Beck Spring Dolomite in the southern Alexander Hills, northeastern San Bernardino County, California, 1 km due east of the Acme Talc Mine in saddle of ridge at about 903 m elevation, unsurveyed NE¼, sec. 9, T19N, R8E, of Tecopa Quadrangle, California (1:62,500).

Plant fossil remain

algae - other


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