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Minocapsa globosa

Protozoa - Nassellaria - Williriedellidae

Discussion

Original description: Shell of four segments, pyriform. Cephalis spherical; thorax and abdomen truncate conical. The proximal three segments form a conical proximal part. The fourth segment large, subspherical without aperture. Collar and lumber strictures indistinct externally. Joint between abdomen and fourth segment marked by rapid change in contour from the conical proximal part to spherical distal part. Pores circular to subcircular, densely spaced and set in polygonal (largely hexagonal) pore frames. Pores around distal end slightly larger than those on the rest of shell and surrounded by rims. Small nodes situated at the pore frame vertices in some specimens.

Original remarks: This species is compared to Minocapsa cylindrica, n. sp. under the latter species.

Etymology: The specific name is derived from the Latin globosus-a-um (spherical).

Taxonomy
Minocapsa globosa was named by Matsuoka (1991). Its type specimen is NU MR 0044 and is a 3D body fossil. Its type locality is Mino Terrane, Nanjo Massif, Imajo Unit, sample MNA-10, which is in a Toarcian basinal (siliceous) mudstone in Japan.

Synonymy list
YearName and author
1991Minocapsa globosa Matsuoka p. 735 figs. 11-1a-4b

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RankNameAuthor
Life
Eukaryota()
classProtozoaGoldfuss 1820
subphylumSarcodinaSchmarda 1871
classReticulareaLankester 1885
subclassRadiolaria(Müller 1858)
RankNameAuthor
superorderPolycystina(Ehrenberg 1838)
orderNassellariaEhrenberg 1875
familyWilliriedellidaeDumitrica 1970
genusMinocapsa
speciesglobosa

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.

Minocapsa globosa Matsuoka 1991
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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 184.20000 to 182.90000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Toarcian184.2 - 182.9Japan Minocapsa globosa (51710 type locality: 124830)