Protozoa - Spumellaria - Angulobracchiidae
Named by Carter & Dumitrica.
Original description: Test small with a large slightly raised central area and three short stubby rays widely expanded and clubshaped at tips; each ray with a single short spine. Meshwork of test usually massive on central area and proximal part of arms, pore frames triangular to quadrangular or irregularly polygonal with nodes at vertices; meshwork slightly smaller towards ray tips. Lateral sides of rays vertical. Spines on ray tips triradiate at base then circular in axial section.
Original remarks: Paronaella curticrassa n. sp. differs from P. grahamensis Carter in having a larger central area and shorter rays with more widely expanded ray tips. The holotype appears to be morphologically intermediate between the two other specimens illustrated.
Etymology: From the Latin curtus - short and crassus fat, plump; adjective.
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 Paronaella according to S. Gorican et al. 2006
Sister taxa: Paronaella araneae, Paronaella bandyi, Paronaella beatricia, Paronaella bifida, Paronaella bona, Paronaella botanyensis, Paronaella broennimanni, Paronaella cava, Paronaella claviformis, Paronaella coalescenda, Paronaella communis, Paronaella corpulenta, Paronaella denudata, Paronaella fera, Paronaella gemmata, Paronaella grahamensis, Paronaella hirsuta, Paronaella impella, Paronaella inornata, Paronaella isariana, Paronaella kotura, Paronaella mulleri, Paronaella multifera, Paronaella norica, Paronaella notabilis, Paronaella obesa, Paronaella pacofiensis, Paronaella pessagnoi, Paronaella pristidentata, Paronaella pygmaea, Paronaella ravenensis, Paronaella skenaensis, Paronaella skowkonaensis, Paronaella snowshoensis, Paronaella solanoensis, Paronaella speciosa, Paronaella striata, Paronaella trammeri, Paronaella trifoliacea, Paronaella tripla, Paronaella triporosa, Paronaella tubulata, Paronaella turgida, Paronaella ultrabifida, Paronaella venusta, Paronaella yaogusensis, Sontonaella concinna, Sontonaella spongiosa, Archaeotriastrum dentatum, Archaeotriastrum mostleri
Type specimen: GSC 80574 (pl. PAR22, fig. 2, Carter et al. 1988, pl. 4, fig. 10). Its type locality is GSC loc. C-080577, Maude Island, which is in a Pliensbachian open shallow subtidal sandstone in the Fannin Formation of Canada.
Ecology: passively mobile planktonic omnivore
Distribution:
• Jurassic of Canada (1: British Columbia collection), United States (1: Oregon)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.