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Azolla theganica
Azolla theganica V.P. Nikitin in V.P. Nikitin, Hval' Paleobot., 2: 72. 2011
- Name
- Azolla theganica
- Rank
- Species
- Generic Name
- [Genus] Azolla
- Authors (Name)
- Nikitin V. P.
- Authors (Pub.)
- Nikitin V. P.
Hval' A. V.
- Publication
- Reproduktivnye struktury Azolla v kajnozoe Zapadnoj Sibiri [2011]
- Journal
- Paleobotanika
- Volume
- 2
- Page number
- 72
- Year
- 2011
- Fossil Status
- sporae dispersae (megaspores)
- Stratigraphy
- Eocene
- Strat. comment
- Tavdinian suite
- Location
- Yarki village, Dovolensky district, Novosibirsk region, Russian Federation
- Paleoregion
- Eurasia (W Siberia)
Data for Holotypus
- Repository
- Komarov Botanical Institute, Russian Academy of Sciences, St.-Petersburg, Russian Federation
- Repository Number
- 206/Н1802
- Diagnosis
- Megaspore complexes small, 0,35—0,45 mm long. Supraspore approximately as high as the infraspore or more often distinctly shorter. Basic fl oats 9. Lower fl oats 1,5—2 times smaller than the upper ones. Cap partially or almost completely covering the supraspore. Columella present. Collar narrow. Suprafi losum moderately developed. Infraspore surface fi nely granulate, with fused grains on various levels united into a more or less pronounced coral-like structure forming a fi nely pitted pattern, and with occasional, often large, outgrowths formed by merging and vertical enlargement of adjacent grains. Infrafilosum absent.
