Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Bistarkum saginatum

Protozoa - Spumellaria - Angulobracchiidae

Discussion

Description: Rays extremely short, wide, subellipsoidal in cross-section, with large subtriangular to hemispherical tips. Test comprised of nearly uniformly sized irregular polygonal pore frames. Pore frames without prominent nodes at vertices. Short spines occurring on distal surface of tips and sides of rays.

Etymology: Saginatus-a-um (Latin, adj.) fattened.

Taxonomy
Bistarkum saginatum was named by Yeh (1987). Its type specimen is NMNS (000047) and is a 3D body fossil. Its type locality is Suplee-Izee area, OR-589D, which is in a Toarcian marine mudstone/limestone in the Snowshoe Formation of Oregon.

Sister species lacking formal opinion data
B. equalum

Synonymy list
YearName and author
1987Bistarkum saginatum Yeh p. 44 figs. Pl. 22, fig. 13, 16

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
—Life
—Eukaryota()
classProtozoaGoldfuss 1820
subphylumSarcodinaSchmarda 1871
classReticulareaLankester 1885
RankNameAuthor
subclassRadiolaria(Müller 1858)
orderSpumellariaEhrenberg 1875
familyAngulobracchiidaeBaumgartner 1980
genusBistarkum
speciessaginatum

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Bistarkum saginatum Yeh 1987
show all | hide all
Diagnosis
No diagnoses are available