Full reference: J. A. Barron, D. Bukry, and R. Z. Poore. 1984. Correlation of the middle Eocene Kellogg Shale of northern California. Micropaleontology 30(2):138-170
Belongs to Helicosphaera according to J. A. Barron et al. 1984
Sister taxa: Helicosphaera burkei, Helicosphaera carteri, Helicosphaera cateri, Helicosphaera compacta, Helicosphaera ethologa, Helicosphaera euphratis, Helicosphaera intermedia, Helicosphaera lophota, Helicosphaera obliqua, Helicosphaera orientalis, Helicosphaera pacifica, Helicosphaera papillata, Helicosphaera parallela, Helicosphaera perchnielseniae, Helicosphaera reticulata, Helicosphaera rhomba, Helicosphaera sellii, Helicosphaera seminulum, Helicosphaera stalis, Helicosphaera truncata, Helicosphaera walbersdorfensis, Helicopontosphaera heezenii, Helicopontosphaera wilcoxonii, Helicopontosphaera minima, Helicopontosphaera hyalina, Helicopontosphaera ampliaptera, Helicopontosphaera granulata, Helicopontosphaera dinesenii, Helicopontosphaera bramlettei
Type specimen: USNM 347046, a test. Its type locality is Camino Diablo Road, which is in a Lutetian/Bartonian marine shale in the Kellogg Formation of California.
Ecology: passively mobile planktonic "photoautotroph"
Distribution: found only at Camino Diablo Road
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.