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Azolla tumida
Azolla tumida V.P. Nikitin in V.P. Nikitin, Hval' Paleobot., 2: 75. 2011
- Name
- Azolla tumida
- 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
- 75
- Year
- 2011
- Fossil Status
- sporae dispersae (megaspores & microspores)
- Stratigraphy
- Oligocene
- Strat. comment
- Novomikhailovian suite
- Location
- Medvezhinka village (Medvezhinsky), Severnyj 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
- 200/Н2683
- Diagnosis
- Megaspore complexes medium-sized, 0,4—0,47 mm long. Supraspore approximately as high as the infraspore. Basic fl oats 9. Lower fl oats 1,5—2 times smaller than the upper ones. Cap partially covering the supraspore. Columella present. Collar narrow to almost indistinct. Suprafi losum moderately developed to scarce. Infraspore surface fi nely granulate, uneven, with occasional large vermiform grains protruding from the surface and overlying the s ubjacent ones. Infrafilosum absent.
