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Tetracyclus chankaicus
Tetracyclus chankaicus Dubrovina, Usolts., Pushkar, Likhacheva Diatom Res., 2014, 29(2(10.1080/0269249X.2013.833137)): [2] 112. 30 Oct 2013
- Name
- Tetracyclus chankaicus
- Rank
- Species
- Generic Name
- [Genus] Tetracyclus
- Authors (Pub.)
- Dubrovina Yu. F.
Usoltseva M. V.
Pushkar V. S.
Likhacheva O. Yu.
- Publication
- Tetracyclus chankaicus, a new species from Miocene sediments of the Khanka Lake, Primorye, Russia [2013/10]
- Journal
- Diatom Research
- Annee/Jahrgang
- 2014
- Volume
- 29
- Issue
- 2(10.1080/0269249X.2013.833137)
- Page number
- [2] 112
- Year
- 2013
- Fossil Status
- valves
- Stratigraphy
- Miocene
- Strat. comment
- Novokachalinskaya Formation
- Location
- Lake Khanka, Primorye Territory, Russian Federation
- Paleoregion
- Eurasia (Far East)
Data for Holotypus
- Repository
- Limnological Institute, Siberian Branch, Russian Academy of Sciences, Irkutsk, Russian Federation
- Repository Number
- Circled specimen on slide L02
Data for Isotypus
- Repository
- Academy of Natural Sciences, Drexel University, Philadelphia, USA
- Repository Number
- Circled specimen on slide ANSP GC 36340
- Diagnosis
- Valves circular, subcircular and occasionally elliptical, 11–49 μm in diameter. Striae very fine and delicate, with 20–25 in 10 μm in the central part of the valve and 40–50 in 10 μm in the polar region. Mantle deep, 3–7 μm in height. The cingulum consists of 14–23 bands with small pores arranged in vertical rows, 2–7 pores in each row. Two to three robust primary transapical ribs on each valve, with secondary ribs between them. No secondary ribs present in
the polar region. Sternum narrow. One to four rimoportulae.
