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

Sontonaella spongiosa

Protozoa - Spumellaria - Angulobracchiidae

Discussion

Description: Test comprised of small irregular polygonal pore frames without prominent nodes at vertices. Rays unequal in length, increasing gradually in width distally. Two longer rays expanded distally without prominent bulbous tips, one shorter ray terminating in short bifurcating tip with minute spines at distal surface.

Remarks: Sontonaella spongiosa, n. sp.differs from S. blfurcata,n. sp, by lacking well-developed bulbous tips at distal ends of two longer rays, by having three rays unequal in length, and by having a test consisting of small irregular spongy mesh work.

Etymology: Spongiosus-a-um (Latin, adj.) spongy.

Taxonomy
Sontonaella spongiosa was named by Yeh (1987). Its type specimen is NMNS (000057) 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.

Synonymy list
YearName and author
1987Sontonaella spongiosa Yeh p. 47 figs. Pl. 21, figs. 4,16

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
genusSontonaellaPessagno 1971
speciesspongiosa

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.

show all | hide all
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: silicap
Environment: marinep
Locomotion: passively mobilep
Life habit: planktonicp
Diet: omnivorep
Created: 2005-01-28 01:13:47
Modified: 2005-01-28 03:13:47
Source: p = phylum
Reference: Kiessling 1999

Age range: Early/Lower Toarcian or 184.20000 to 182.90000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Toarcian184.2 - 182.9USA (Oregon) Sontonaella spongiosa (124333 type locality: 124334)