Protozoa - Spumellaria - Angulobracchiidae
Description: Test with narrow, long rays. Rays nearly equal in length
and width. One ray slightly shorter than other two and terminating in short bifurcate tip, the other two rays terminating in ellipsoidal tips. Test comprised of triangular and other irregular polygonal (tetragonal or pentagonal) pore frames. Pore frames relatively uniform
in size. Distal surface of tips flanking with several small spines.
Etymology: Concinnus-a-um (Latin, adj.) neat, elegant.
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 Sontonaella according to K. Y. Yeh 1987
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 curticrassa, 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, Archaeotriastrum dentatum, Archaeotriastrum mostleri, Sontonaella spongiosa
Type specimen: NMNS (000051). Its type locality is Suplee-Izee area, OR-536J, which is in a Pliensbachian marine mudstone/limestone in the Nicely Formation of Oregon.
Ecology: passively mobile planktonic omnivore
Distribution:
• Jurassic of United States (3: Oregon collections)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.