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Elatocladus heerianus
Elatocladus heerianus Nosova, Kiritch. in Nosova, Kiritch., E.I. Kostina Paleobot., 8: 8. 2017
- Name
- Elatocladus heerianus
- Rank
- Species
- Generic Name
- [Genus] Elatocladus
- Authors (Name)
- Nosova N. V.
Kiritchkova A. I.
- Authors (Pub.)
- Nosova N. V.
Kiritchkova A. I.
Kostina E. I.
- Publication
- Oblistvennye pobegi i mikrostrobily khvojnykh iz sredneyurskikh otlozhenij Irkutskogo ugol'nogo bassejna [2017]
- Journal
- Paleobotanika
- Volume
- 8
- Page number
- 8
- Year
- 2017
- Fossil Status
- leafy twigs
- Stratigraphy
- Aalenian
- Strat. comment
- upper subformation of the Prisayan Formation
- Location
- Irkutsk Coal Basin, Irkutsk Reservoir, Irkutsk region, Russian Federation
- Paleoregion
- Eurasia (Siberia)
Data for Holotypus
- Repository
- Komarov Botanical Institute, Russian Academy of Sciences, St.-Petersburg, Russian Federation
- Repository Number
- 1434/312
- Diagnosis
- Shoots with helically arranged leaves. Leaves sessile and dorsoventrally flattened, linear
to lanceolate, falcate, bending upward distally, base broad and decurrent, apex acute. Leaves hypostomatic.
Cells of the adaxial surface quadrangular, elongated, anticlinal cell walls straight. Cells of the abaxial surface
quadrangular to polygonal, and short to elongated, anticlinal cell walls straight to undulating. Periclinal
cell walls of both adaxial and abaxial surfaces smooth, sometimes with cuticular thickenings in the
stomatal bands. Stomata crowded in two narrow bands. Stomata orientated transversely or irregularly.
Subsidiary cells without papillae.
