Protozoa - Nassellaria - Hsuidae
Original description: Test as with genus, relatively narrow, with slightly stricture at joints and with six to seven post-abdominal chambers. Cephalis broadm dome-shaped, often with small nodes. Cephalis and most part of thorax imperforate, covered with layer of microgranular silica. Abdomen and post-abdominal chambers consisting of linearly aligned small tetragonal pore frames. Final post-abdominal chamber decreasing in width rapidly.
Original remarks: Fantus schoolhousensis n. sp. differs from Broctus ruesti n. sp. by having a narrower, elongater test with smaller pore frames without massive costae.
Etimology: This species is named for the Schoolhouse Gulch, near its type locality.
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 Fantus according to K. Y. Yeh 1987
Sister taxa: Parahsuum carpathicum, Parahsuum edenshawi, Parahsuum formosum, Parahsuum hiconocosta, Parahsuum izeense, Parahsuum longiconicum, Parahsuum mostleri, Parahsuum officerense, Parahsuum ovale, Parahsuum primitivum, Parahsuum publicum, Parahsuum simplum, Parahsuum vizcainoense, Lupherium nitidum, Lupherium snowshoense, Fantus exiguus, Drulanta bella, Drulanta pulchra
Type specimen: NMNS (000081). 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 (3: Oregon collections)
Total: 3 collections including 4 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.