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Fantus exiguus

Protozoa - Nassellaria - Hsuidae

Discussion

Original description: Test wide, short, moderate in size, lobated distally Cephalis broad, dome-shaped, slightly nodosed, sparsely perforated and covered with layer of microgranular silica. Thorax and subsequent chambers consisting of square to rectangular pore frames setting with circular to elliptical pores. Pore frames medium in size, slightly increasing in width distally but with final post-abdominal chamber decreasing in width.

Original remarks:Fantus exiguus n. sp. can be distinguished from other Fantus spp. in this report by having a short, wide, and lobated test.

Etimology: Exiguus-a-um (Latin, adj.) short.

Taxonomy
Fantus exiguus was named by Yeh (1987). It 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
1987Fantus exiguus Yeh p. 62 figs. Pl. 28, figs. 19, 21

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RankNameAuthor
Life
Eukaryota()
classProtozoaGoldfuss 1820
subphylumSarcodinaSchmarda 1871
classReticulareaLankester 1885
subclassRadiolaria(Müller 1858)
RankNameAuthor
superorderPolycystina(Ehrenberg 1838)
orderNassellariaEhrenberg 1875
superfamilyArchaeodictyomitraceaPessagno 1976
familyHsuidae
genusFantusYao 1982
speciesexiguus

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.

Fantus exiguus Yeh 1987
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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: one only


Time interval Ma Country or state Original ID and collection number
Early/Lower Toarcian183.0 - 182.0USA (Oregon) Fantus exiguus (type locality: 124334)