Crucella beata Yeh 1987 (radiolarian)

Protozoa - Spumellaria - Hagiastridae

Description: Test thick with four wide rays. Rays subellipsolidal in cross section, medium in length, with five to six external beans and four to five sublinearly arranged rows of rectangular pore frames. Central area large with irregularly arranged subtriangular or rectangular pore frames. Primary spines medium in length, moderately thick, circular in axial section. Test with or without patagium.

Remarks: Pseudocrucella beata, n. sp., differs from P. jurassica. n. sp., by having a wider test with rays which are ellipsoidal in axial section and by lacking a central cavity.

Etymology: Beatus-a-um (Latin, adj.) happy.

Alternative combination: Pseudocrucella beata

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 Crucella according to Baumgartner 1995

Sister taxa: Crucella angulosa, Crucella cachensis, Crucella carteri, Crucella cavata, Crucella collina, Crucella concinna, Crucella espartoensis, Crucella flowerpotensis, Crucella hettangica, Crucella irwini, Crucella jadeae, Crucella kaisunensis, Crucella magna, Crucella messinae, Crucella mexicana, Crucella mijo, Crucella mirabunda, Crucella plana, Crucella prisca, Crucella spongase, Crucella squama, Crucella tenuis, Crucella theokaftensis

Type specimen: NMNS (000019). 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 (4: Oregon collections)

Total: 4 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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