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Ramoferis amalia
Ramoferis amalia S.-G. Hao, J.-Z. Xue Acta Geol. Sin. (Engl. ed.), 85(4): 766. Aug 2011
- Name
- Ramoferis amalia
- Rank
- Species
- Generic Name
- [Genus] Ramoferis
- Authors (Pub.)
- Hao S.-G.
Xue J.-Z.
- Publication
- A new zosterophyll plant, Ramoferis gen. nov., from the Posongchong Formation of Lower Devonian (Pragian) of southeastern Yunnan, China [2011/8]
- Journal
- Acta Geologica Sinica
- Volume
- 85
- Issue
- 4
- Page number
- 766
- Year
- 2011
- Fossil Status
- stems (with sporangia)
- Stratigraphy
- Pragian
- Strat. comment
- Posongchong Formation
- Location
- mountain outcrop approximately 400 m northwest of Changputang Village, Wenshan District, Yunnan Province, China
- Paleoregion
- Cathaysia (South)
Data for Holotypus
- Repository
- Beijing University, Department of Geology, Beijing, China
- Repository Number
- HG.C.R-01 + HG.C.R-01'
- Diagnosis
- Sterile axes 3.0-5.2 mm (av. 4.1 mm) wide, dividing at least 2-3 times. Fertile axes, 3.2-4.0 mm (av. 3.6 mm) wide, at least 11.6 cm long, branched at least 4-5 times, 4.2-19.0 mm apart, branching angles 30°-60°, finally forming distal-terminal branchlets usually less than I mm wide. Sporangia borne laterally on short stalks, inserted at narrow angles, or below branching point of main axis. Many could be gathered into a spike, which is 8-48 mm long and 6.2- 9.3 mm wide at the middle part. Sporangia, ovoid to pear-shaped in face view, usually 3.0-6.4 mm (av. 4.9 mm) wide and 2.5-5.0 mm (av. 4.2 mm) high. Sporangial stalks, 1.5-4.5 mm (av. 2.8 mm) long, 0.3-1.0 mm (av. 0.7 mm) wide at base where they depart from the axis, widening distally at the junction with sporangium to 1.3- 3.5 mm (av. 2.4 mm) wide. Rim of sporangium about 200 μm wide. Spores are 48-77 μmin diameter, subcircular to circular in outline; trilete rays distinct, 3/4 to whole radius, with curvaturae perfectae, exine thin, shagrenate.
