Protozoa - Spumellaria - Pantanelliidae
Named by Carter.
Original description: Cortical shell relatively large, spherical to subspherical with medium-sized pores and very low rounded nodes at pore frame vertices. Pore frames pentagonal and hexagonal, thicker in Z direction than in Y direction; five pore frames visible along AA, six visible along BB. Polarspines very short, less than one-quarter diameter of test; spines strongly tapering, one slightly longer than the other. Spines usually triradiate in axial section with three, narrow ridges and three relatively wide grooves.
Original remarks: Pantanellium brevispinum n. sp. differs from P. haidaense Pessagno & Blome by having much shorter polar spines, and lower nodes at pore frame vertices.
Etymology: From the Latin brevis spinus, -a, -um (with short spines).
Full reference: S. Gorican, E. S. Carter, P. Dumitrica, P. A. Whalen, R. S. Hori, P. De Wever, L. O'Dogherty, A. Matsuoka, and J. Guex. 2006. Catalogue and systematics of Pliensbachian, Toarcian and Aalenian radiolarian genera and species 446
Belongs to Pantanellium according to S. Gorican et al. 2006
Sister taxa: Pantanellium bangaense, Pantanellium berriasianum, Pantanellium browni, Pantanellium cantuchapai, Pantanellium carlense, Pantanellium coronense, Pantanellium danaense, Pantanellium deflectum, Pantanellium fischeri, Pantanellium formosum, Pantanellium fosteri, Pantanellium foveatum, Pantanellium freboldi, Pantanellium heimi, Pantanellium inornatum, Pantanellium josephinense, Pantanellium kluense, Pantanellium kungaense, Pantanellium meraceibaense, Pantanellium newkluense, Pantanellium nodaculeatum, Pantanellium oligoporum, Pantanellium parvulum, Pantanellium pinguisfloreus, Pantanellium quintachillaense, Pantanellium ranchitoense, Pantanellium rarum, Pantanellium riedeli, Pantanellium silberlingi, Pantanellium sincerum, Pantanellium sixi, Pantanellium skedansense, Pantanellium skidegatense, Pantanellium squinaboli, Pantanellium tanuense, Pantanellium tierrablancaense, Pantanellium tozeri, Pantanellium ultrasincerum, Pantanellium westermanni, Pantanellium whalenae, Pantanellium wui
Type specimen: GSC 111730. Its type locality is Rennell Junction, Graham Island; GSC loc. C-080611, which is in a Pliensbachian marine shale in the Ghost Creek Formation of Canada.
Ecology: passively mobile planktonic omnivore
Distribution:
• Jurassic of Canada (7: British Columbia collections), Japan (3)
Total: 10 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.