Biology:Mennerius
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Short description: Genus of single-celled organisms
| Mennerius | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota
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| (unranked): | Haptophyta
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| Class: | Prymnesiophyceae
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| Family: | Lapideacassaceae
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| Genus: | Mennerius Luljeva, 1967[1]
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| Synonyms | |
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Mennerius is a genus of haptophytes belonging to the family Lapideacassaceae.[2]
Diagnosis
The genus accommodates ‘bell-shaped’ to cylindrical nannoliths with their body consisting of one or more tiers of vertically elongated calcite plates and a rounded or somewhat pointed apical cone. One or more apical spines are often also present. The cross section of the body is round to polygonal.
Species
- M. asymmetricus (Perch-Nielsen in Perch-Nielsen & Franz, 1977)
- M. bispinosus (Perch-Nielsen in Perch-Nielsen & Franz, 1977)
- M. blackii (Perch-Nielsen in Perch-Nielsen & Franz, 1977)
- M. cornutus (Forchheimer & Stradner, 1973)
- M. glans (Black, 1971)
- M. longus Luljeva, 1967
- M. magnificus (Perch-Nielsen in Perch-Nielsen & Franz, 1977)
- M. mariae (Black, 1971)
- M. morosus Luljeva, 1967
- M. tricornus (Wind & Wise in Wise & Wind, 1977)
- M. trispinus (Perch-Nielsen in Perch-Nielsen & Franz, 1977)
- M. varius (Crux, 1981)
- M. wisei (Perch-Nielsen in Perch-Nielsen & Franz, 1977)
Distribution
The species of the genus occur sporadically but widely in the uppermost Lower and Upper Cretaceous and Palaeogene sediments in the Northern Hemisphere, South Atlantic, South Africa , Indian Ocean and Australia .
References
- ↑ Luljeva, S.A. (1967). "Coccolithophorids of the Turonian deposits of the Dnepr-Donetsk depression". Geological Journal 27 (6): 91–98.
- ↑ Ovechkina, M.N.; Jordan, R.W.; Mostovski, M.B. (2017). "On the validity, synonymy and distribution of some Lapideacassaceae (Haptophyta)". Phytotaxa 308 (1): 111–117. doi:10.11646/phytotaxa.308.1.10. https://www.biotaxa.org/Phytotaxa/article/view/phytotaxa.308.1.10.
Wikidata ☰ Q30682783 entry
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