The INTERNATIONAL FOSSIL PLANT NAMES INDEX
Global registry of scientific names of fossil organisms covered by the International Code of Nomenclature for Algae, Fungi, and Plants and the International Code of Zoological Nomenclature © 2014-2024

IDNAME urn:idName:ifpni.org:species:5E057999-D643-477F-B58E-0EE3BAC61BF9 species
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Azolla asiatica

Azolla asiatica V.P. Nikitin in V.P. Nikitin, Hval' Paleobot., 2: 56. 2011
Name
Azolla asiatica
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
56
Year
2011
Fossil Status
sporae dispersae (megaspores)
Stratigraphy
Eocene
Strat. comment
Tavdinian suite
Location
Lesnaja poljana station (Zakholustnoe), 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
224/Н1249
Diagnosis
Megaspore complexes small, 0,35—0,42 mm long. Supraspore approximately as high as the infraspore or longer. Basic floats 9. Lower floats 1,5 times smaller than the upper ones. Cap partially covering the supraspore. Columella present. Collar narrow to almost indistinct. Suprafilosum moderately developed to scarce. Infraspore surface fi nely granulate with dense conical to elongated rugged outgrowths formed by merging and vertical enlargement of adjacent grains, as well as with large vermiform grains protruding from the surface and overlying the subjacent ones. Infrafilosum absent.

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