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Xinhangia spina
Xinhangia spina J.-N. Yang, De-M. Wang Biology (Basel), 11(11, 1568): 2. 26 Oct 2022
- Name
- Xinhangia spina
- Rank
- Species
- Generic Name
- [Genus] Xinhangia
- Authors (Pub.)
- Yang J.-N.
Wang D.-M.
- Publication
- A new fern-like plant Xinhangia spina gen. et sp. nov. from the Upper Devonian of China [2022/10]
- Journal
- Biology (Basel)
- Volume
- 11
- Issue
- 11, 1568
- Page number
- 2
- Year
- 2022
- Fossil Status
- stems (wood)
- Stratigraphy
- Famennian
- Strat. comment
- Leigutai Member of Wutong Formation
- Location
- Yongchuan clay mine near Jianchuan village, Xinhang Town, Guangde
City, Anhui Province, China
- Paleoregion
- Cathaysia (South)
Data for Holotypus
- Repository
- Beijing University, Department of Geology, Beijing, China
- Repository Number
- not specified
- Diagnosis
- Main axes 1.8–6.0 mm wide and up to 111 mm long, with primary branches arranged at 45–70◦. Primary branches 0.7–3.0 mm wide and up to 65 mm long; secondary branches 0.3–1.0 mm wide and up to 50 mm long; tertiary branches 0.2–0.4 mm wide and up to 7 mm long. Sometimes a dichotomous aphlebia inserted at the base of primary and secondary branches. Spines on main axes and primary axes, 1–3 mm long. Basal axes within fertile ultimate appendages 0.2–0.4 mm wide. Sporangia 0.3–0.5 mm wide and 0.9–1.5 mm long. In main axes, xylem column 2 mm in diameter. Primary xylem 220–360 µm by 720–870 µm in transverse section. Tracheids in protoxylem, metaxylem and secondary xylem 10–25 µm, 30–51 µm, 32–73 µm in diameter, respectively.
