Back
Thalassiosira kozyrenkoae
Thalassiosira kozyrenkoae G.V. Kovaleva, Gogorev Novosti Sist. Nizsh. Rast., 55(1): 24. 2021
- Name
- Thalassiosira kozyrenkoae
- Rank
- Species
- Generic Name
- [Genus] Thalassiosira
- Authors (Pub.)
- Kovaleva G. V.
Gogorev R. M.
- Publication
- Thalassiosira kozyrenkoae sp. nov. (Bacillariophyta) from the outcrops on the Taman Peninsula (Russia) [2021]
- Journal
- Novosti Sistematiki Nizshikh Rastenii
- Volume
- 55
- Issue
- 1
- Page number
- 24
- Year
- 2021
- Fossil Status
- valves
- Stratigraphy
- Messinian
- Strat. comment
- Late Sarmatian to the Early Maeotian
- Location
- Cape Panagia (45°08′26.0″N, 36°38′00.5″E), Taman Peninsula, Krasnodar Territory, Russian Federation
- Paleoregion
- Eurasia (Europe)
Data for Holotypus
- Repository
- Southern Scientific Centre, Russian Academy of Sciences, Rostov-na-Donu, Russian Federation
- Repository Number
- specimen on slide No. 7
Data for Isotypus
- Repository
- Komarov Botanical Institute, Russian Academy of Sciences, St.-Petersburg, Russian Federation
- Repository Number
- Slide LE A0000299 (No. 716)
- Diagnosis
- Valves flat, slightly concave in center, 20–61 μm in diam., with a rather high mantle. Areolae pattern radial and fasciculated, 12–13 (rarely 14) areolae in 10 μm, 26–30 areolae in 10 μm on valve mantle. Foramina of areolae big, round in center. Rarely, foramina are smaller, slit-like, tri- or quadrangular near the margin. Cribrum round to elongated ellipsoid with 18–24 cribrum pores in 1 μm (n = 23). One central strutted process with 5 satellite pores, with external short tube and usually surrounded by 1–2 larger areolae. Marginal strutted processes with 4 satellite pores in a ring, 6 in 10 μm; rarely 4–5 in 10 μm on great valves (45–60 μm in diam.). External marginal processes with rather long tubes, sometimes surrounded by extension (coil) at the end and with internal very short tubes inside the valve. Single rimoportula between two marginal strutted processes, on external surface with external tube longer than in marginal processes, 1.9–2.7 μm long; internal slit of labiate process about 1 μm long, located radially.
