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Uralostrobus voltzioides
Uralostrobus voltzioides Naug. Geobios (Lyon), 47(5): 318. 2 Oct 2014
- Name
- Uralostrobus voltzioides
- Rank
- Species
- Generic Name
- [Genus] Uralostrobus
- Authors (Pub.)
- Naugolnykh S. V.
- Publication
- A new genus of male cones of voltzialean affinity, Uralostrobus voltzioides nov. gen., nov. sp., from the Lower Permian of the Urals (Russia) [2014/10]
- Journal
- Geobios
- Volume
- 47
- Issue
- 5
- Page number
- 318
- Year
- 2014
- Fossil Status
- cones (male)
- Stratigraphy
- Kungurian
- Location
- Chekarda village, Chekarda-1 locality, left bank of Sylva River, directly below the mouth of the Chekarda River, Perm' Territory, Russian Federation
- Paleoregion
- Angarida
Data for Holotypus
- Repository
- Geological Institute, Russian Academy of Sciences, Moscow, Russian Federation
- Repository Number
- 3773(11)/179a(89) and 3773(11)/179(89) (counterpart)
- Diagnosis
- Male cones consisting of microsporophylls attached
to central axis. Microsporophylls arranged in spiral order and
forming regular parastichi. Each cone has 14–15 oblique subhorizontally
disposed lines of microsporophylls, and 4–5 subvertical
lines of microsporophylls disposed on each side of cone,
making one complete cone bearing ca. 150 microsporophylls. Microsporophyll consists of basal stalk and shield attached to stalk
at right angle. Microsporophyll rhombic to subtriangular in shape,
with acute apex and rounded base. Distal margins of sporophylls
may have small acute lobes. Surface of microsporophyll shield
covered by narrow ribs corresponding to vascular bands located
inside mesophyllous tissues of microsporophyll. Vascular bundles
(veins) dichotomizing up to two or three times. Vascular bands
consist of tracheids with laxus spiral thickenings. There are resin
bodies inside microsporophyll shields. Microsporangia long,
narrow, attached to the base of the microsporophyll shield. Each
microsporophyll has at least two microsporangia containing
bisaccate pollen grains of Illinites or Alisporites type.
