Katroma inflata Yeh 1987 (radiolarian)

Protozoa - Nassellaria - Syringocapsidae

Original description: Cephalis small, dome shaped, with long, well-developed horn. Horn circular in cross-section. Thorax and abdomen trapezoidal in outline. Caphalls, thorax, and abdomen closely spaced. Final post-abdominal chamber inflated and terminating in narrow, tubular extension. Test comprised predominantly of pentagonal and hexagonal pore frames. Pore frames small on earlier chamber, large on post-abdominal chambers. All pore frames with thin rims and sides. First post-abdominal chamber lacking circumferential spines and having small nodes at vertices (pl. 10, fig. 22).

Etymology: Inflatus-a-um (Latin, adj.) inflated.

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 Katroma according to K. Y. Yeh 1987

Sister taxa: Katroma angusta, Katroma aurita, Katroma bicornus, Katroma brevitubus, Katroma clara, Katroma elongata, Katroma hullae, Katroma inflatio, Katroma irvingi, Katroma milloti, Katroma neagui, Katroma pinquitudo, Katroma regina, Katroma sinetubus, Katroma tetrastyla, Katroma westermanni

Type specimen: NMNS (000127). Its type locality is Suplee-Izee area, OR-600M, which is in a Toarcian marine tuff/limestone in the Hyde Formation of Oregon.

Ecology: passively mobile planktonic omnivore

Distribution:

• Jurassic of Oman (1 collection), United States (1: Oregon)

Total: 2 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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