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

Zartus stellatus

Protozoa - Spumellaria - Pantanelliidae

Discussion

Named by S. Gorican & A. Matsuoka.

Original description: Cortical shell subspherical with relatively small hexagonal and pentagonal pore frames. Five to six pore frames visible along AA(prime). Median band bears several (more than four, usually seven) long massive triradiate secondary spines, pyramidal in shape. Polar spines long and robust, approximately equal in length; width constant through most of the length, then decreasing more rapidly towards spine tips. Polar spines triradiate with three rounded ridges alternating with three deep grooves.

Original remarks: Zartus stellatus n. sp. differs from all other Zartus species by having larger polar spines and numerous long secondary spines on median band.

Etymology: Stellatus-a-um (Latin, adj.) - stellate, arranged like a star, radiating.

Taxonomy
Zartus stellatus was named by Gorican et al. (2006). Its type specimen is MA 11322 and is a 3D body fossil.

Sister species lacking formal opinion data
Z. dickinsoni, Z. imlayi, Z. jonesi, Z. mostleri, Z. praejonesi

Synonymy list
YearName and author
2006Zartus stellatus Gorican et al. p. 410 figs. Pl. ZRT03

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

RankNameAuthor
—Life
—Eukaryota()
classProtozoaGoldfuss 1820
subphylumSarcodinaSchmarda 1871
classReticulareaLankester 1885
subclassRadiolaria(Müller 1858)
RankNameAuthor
orderSpumellariaEhrenberg 1875
familyPantanelliidaePessagno 1977
subfamilyPantanelliinaePessagno 1977
genusZartusPessagno and Blome 1980
speciesstellatus

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.

†Zartus stellatus Gorican et al. 2006
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 183.00000 to 182.00000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Toarcian183.0 - 182.0Japan Zartus sp. A0 (51710) Zartus stellatus (124830)
Early/Lower Toarcian183.0 - 182.0Slovenia Zartus stellatus (67150)