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Tholodiscus

Protozoa - Spumellaria - Spongodiscidae

Taxonomy
Tholodiscus was named by Petrushevskaya and Kozlova (1972). It is extant. Its type is Stylodictya ocellata.

It was assigned to Spongodiscidae by De Wever et al. (2001).

Species
T. ocellatus
Species lacking formal opinion data
T. densus, T. fresnoensis, T. targaeformis

Synonymy list
YearName and author
1972Tholodiscus Petrushevskaya and Kozlova
2001Tholodiscus De Wever et al. p. 160

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RankNameAuthor
—Life
—Eukaryota()
classProtozoaGoldfuss 1820
subphylumSarcodinaSchmarda 1871
classReticulareaLankester 1885
RankNameAuthor
subclassRadiolaria(Müller 1858)
orderSpumellariaEhrenberg 1875
familySpongodiscidaeHaeckel 1862
genusTholodiscusPetrushevskaya and Kozlova 1972

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.

G. Tholodiscus Petrushevskaya and Kozlova 1972
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Tholodiscus ocellatus Ehrenberg 1874
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

Maximum range based only on fossils: base of the Middle Campanian to the top of the Selandian or 83.60000 to 59.24000 Ma
Minimum age of oldest fossil (stem group age): 72.2 Ma

Collections (41 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Campanian83.6 - 72.2Japan (Hokkaido) T. fresnoensis (95789)
Middle Campanian - Late/Upper Campanian83.6 - 72.2Japan (Hokkaido) T. fresnoensis (95790)
Early/Lower Maastrichtian72.2 - 66.0Japan (Hokkaido) T. fresnoensis (95791)
Late/Upper Maastrichtian72.2 - 66.0New Zealand (Marlborough) T. densus (95849 95888) T. densus, T. ocellatus (95884 95885 95886 95887) T. ocellatus (95845)
Late/Upper Maastrichtian72.2 - 66.0Czechia T. ocellatus (67451)
Danian66.0 - 61.66New Zealand (Marlborough) T. densus, T. ocellatus (95858 95859 95875 95877 95892 95893 95894 95896 95902 95903) T. densus, T. targaeformis (95904) T. densus, T. targaeformis, T. ocellatus (95905 95906 95907) T. ocellatus (95866 95870 95874 95876 95878 95879 95880 95881 95882 95883 95895 95897 95900 95901)
Selandian61.66 - 59.24New Zealand (Marlborough) T. densus, T. targaeformis, T. ocellatus (95909 95910)