Protozoa - Nassellaria - Bagotidae
Original description: Test relatively short, spindle shaped, with five to six post-abdominal chambers. Cephatis conical with short rudimentary horn. Cephalis and thorax sparsely perforated, covered with layer of microgranular silica. Abdonmen and post-abdominal chambers trapezoidal to rectangular in outline, consisting of irregular polygonal pore frames with small pores apically and distally. Pore frames tending in linear alignment and with poorly developed short costae.
Original remarks: Noritus tenuis Yeh n. sp. differs from N. Pauxillus, n. sp. by having a shorter horn and by having a test with pore frames more uniform in size.
Etymology: Tenuis (Latin, adj.) thin.
Full reference: K. Y. Yeh. 1987. Taxonomic Studies of Lower Jurassic Radiolaria from East-Central Oregon. National Museum of Natural Science Special Publications 2:1-169
Belongs to Noritus according to K. Y. Yeh 1987
Sister taxa: Noritus lillihornensis, Noritus pauxillus
Type specimen: NMNS (000069). Its type locality is Suplee-Izee area, OR-589D, which is in a Toarcian marine mudstone/limestone in the Snowshoe Formation of Oregon.
Ecology: passively mobile planktonic omnivore
Distribution:
• Jurassic of United States (4: Oregon collections)
Total: 4 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.