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Discinites baculiformis
Discinites baculiformis Jun Wang bis, Pfefferk., Z. Feng, G.-L. Shen Int. J. Pl. Sci., 165(6): 1108. Nov 2004
- Name
- Discinites baculiformis
- Rank
- Species
- Generic Name
- [Genus] Discinites
- Authors (Pub.)
- Wang J.
Pfefferkorn H. W.
Feng Z.
Shen G.-L.
- Publication
- A new species of Discinites (Noeggerathiales) associated with a new species of Yuania from the Lower Permian of Inner Mongolia, China [2004/11]
- Journal
- International Journal of Plant Sciences
- Volume
- 165
- Issue
- 6
- Page number
- 1108
- Year
- 2004
- Fossil Status
- strobili
- Stratigraphy
- Asselian
- Strat. comment
- Shanxi Formation
- Location
- Wuda Coal District (N39°28′53′′, E106°38′08′′) near Wuda, Inner Mongolia, China
- Paleoregion
- Cathaysia (North)
Data for Holotypus
- Repository
- Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China
- Repository Number
- PB20252a, 20252b
Data for Paratypus
- Repository
- Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China
- Repository Number
- PB20253–20258, 20268
- Diagnosis
- Strobilus more than 31 cm long, 1.5–2.0 cm in diameter, with a long pedicel; axis ca. 3.5–4.0 mm wide. Bases of sporophylls decurrent around the axis; proximal parts united to form a disk, with a right angle to the axis; distal parts upturned and parallel to the axis, deeply dissected into more than 50 teeth ca. 8–10 mm long and 2 mm wide at the base, with a single vein in the middle of the teeth. Sporangia elliptical, ca. 2.5–3.0 mm long and 0.7–1.0 mm wide, alternate and radiately arranged, forming four to five circles on the adaxial side of the disks. There are ca. 80–90 sporangia per disk. Epidermal cells of sporophyll are rectangular, 20–50 mm wide and 60–150 mm long, or polygonal, 20 3 40 mm to 40 3 85 mm in size, with long axes parallel to
the radius of the disk. Spores are in tetrads. The spores are ca. 50–80 mm in diameter.
