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Dalembia bolschakovae
Dalembia bolschakovae E.L. Lebedev, A.B. Herman Rev. Palaeobot. Palynol., 59(1-4): 83. 21 Jun 1989
- Name
- Dalembia bolschakovae
- Rank
- Species
- Generic Name
- [Genus] Dalembia
- Authors (Pub.)
- Lebedev E. L.
Herman A. B.
- Publication
- A new genus of Cretaceous angiosperms — Dalembia [1989/6]
- Journal
- Review of Palaeobotany and Palynology
- Volume
- 59
- Issue
- 1-4
- Page number
- 83
- Year
- 1989
- Fossil Status
- leaves
- Stratigraphy
- Cenomanian
- Strat. comment
- Amkinsky horizon
- Location
- Okhotsk-Chukotsk volcanogenic belt,
Uliya trough, Magadan region, Russian Federation
- Paleoregion
- Eurasia (Far East)
Data for Holotypus
- Repository
- Geological Institute, Russian Academy of Sciences, Moscow, Russian Federation
- Repository Number
- N 3389-153/1
- Diagnosis
- Leaflets from ovate to rounded,
lobed; 60 x 40 mm to 110 x 80 mm. Pinnate venation;
particularly developed is a pair of lateral
veins second from the base, going out from
midrib near the base; going out below them are
fainter basal veins. Lateral veins and some
tertiary veins run into apices of main and
subsidiary lobes. Coming to sinuses
bordered by a fimbrial vein are branches of
lateral veins or branches from the lower-lying
veins fuse with the fimbrial one slightly above
the sinus bottom. The quaternary
veins form relatively large polygonal cells.
Particularly developed is the basal pair of
lobes complicated from the lower side by subsidiary, smaller lobes (up to 3-4 pairs); in
higher-lying lobes there is occasionally observed
at the lower side a small, teeth-like lobe.
Apices of lobes and leaflets are rounded,
blunted, truncate or faintly notched, occasionally
triangularly-attenuated, with points of
going-out veins. Leaflet (?) base is
truncate or faintly wedge-shaped.
