Protozoa - Nassellaria - Syringocapsidae
Named by Dumitrica & Gorican.
Original description: Test composed of three segments and a tubular extension. Cephalis and thorax short, broadly conical, collar stricture not well pronounced externally. Apical horn indistinct, short, circular in cross-section. Cephalothorax bears small circular pores. Abdomen inflated, spherical, much larger than cephalothorax, covered with mediumsized hexagonal and pentagonal pore frames. Abdomen without circumferential spines. Tubular extension short, inverted conical, porous. Pores similar in size to those of abdomen. Tubular extension closed; in well-preserved specimens it ends with a short spine, circular in crosssection.
Original remarks: Katroma brevitubus n. sp. differs from K. angusta Yeh by having a much shorter terminal tube. It differs from Katroma ninstintsi Carter by having a shorter cephalothorax, more expanded abdomen, and shorter terminal tube.
Etymology: From Latin: brevis,-e (short) and tubus,-i (tube); noun.
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 Katroma according to Dumitrica and Gorican 2006
Sister taxa: Katroma angusta, Katroma aurita, Katroma bicornus, Katroma clara, Katroma elongata, Katroma hullae, Katroma inflata, Katroma inflatio, Katroma irvingi, Katroma milloti, Katroma neagui, Katroma pinquitudo, Katroma regina, Katroma sinetubus, Katroma tetrastyla, Katroma westermanni
Type specimen: SG 022014
Ecology: passively mobile planktonic omnivore
Distribution:
• Jurassic of Austria (1 collection), Japan (4)
Total: 5 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.