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Kundurianthus mirabilis
Kundurianthus mirabilis Kodrul, N.P. Maslova, Tekl., Golovn. Palaeobotanist, 62(1): 126. 1 Mar 2013
- Name
- Kundurianthus mirabilis
- Rank
- Species
- Generic Name
- [Genus] Kundurianthus
- Authors (Pub.)
- Kodrul T. M.
Maslova N. P.
Tekleva M. V.
Golovneva L. B.
- Publication
- Platanaceous reproductive structures and leaves from the Cretaceous locality Kundur, Amur region, Russia [2013/3]
- Journal
- Palaeobotanist
- Volume
- 62
- Issue
- 1
- Page number
- 126
- Year
- 2013
- Fossil Status
- inflorescences (male)
- Stratigraphy
- Campanian
- Strat. comment
- Kundurian suite
- Location
- road cut of the Federal Highway ‘Amur’ Chita-Khabarovsk between the rivers Mutnaya and Udurchukan, near Kundur Town, Amur region, Russian Federation
- Paleoregion
- Eurasia (Far East)
Data for Holotypus
- Repository
- Geological Institute, Russian Academy of Sciences, Moscow, Russian Federation
- Repository Number
- 867-K16/6-39
- Diagnosis
- Staminate heads 5-10 mm in diameter, sessile or on a peduncle. Epidermal cells of the axis transversally elongated, trapezoid, square and arranged in indistinct rows. Trichomes lacking on the axis. Flower number about 30 per head. Flowers lacking perianth. Flower attachment scars distinct on the globular receptacular core, marked by small swellings of the proliferous core tissue. Flowers are mostly tetramerous, less often pentamerous. Stamens differing in size. Stamen filaments not pronounced. Pollen sacs spindle-shaped, pointed apically, differently sized in the flower. Pollen density in the sacs low. Apical extensions of the connectives not developed. One or rarely several fruitlets with long curved styles in the head, the fruitlets are developed to a different extent. The mature fruitlet sometimes reaches or exceedes the head diameter. The fruitlet body widely ovoid, ventral suture from the fruitlet base to the style tip. Pollen small, finely reticulate, semitectate, tricolpate or tricolporate with indistinct ora, columellate, the inner layer (foot layer and/or endexine) unequal in thickness throughout the pollen grain. Colpi long, about 0·6-0·7 of the polar axis length, the colpus margin with a sporopollenin rim, aperture membrane presumably smooth.
