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Zosterophyllum minifertillum
Zosterophyllum minifertillum S.-G. Hao, J.-Z. Xue Early Dev. Posongchong Fl. Yunnan 94. 2013
- Name
- Zosterophyllum minifertillum
- Rank
- Species
- Generic Name
- [Genus] Zosterophyllum
- Authors (Pub.)
- Hao S.-G.
Xue J.-Z.
- Publication
- The Early Devonian Posongchong flora of Yunnan [2013]
- Book
- The Early Devonian Posongchong flora of Yunnan
- Page number
- 94
- Year
- 2013
- Fossil Status
- stems (with sporangia)
- Stratigraphy
- Pragian
- Strat. comment
- Posongchong Formation
- Location
- Mountain outcrop approximately 600 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
- PUH.09-Z.mi.1
- Diagnosis
- Axes 0.6-1.3 mm wide, with isotomous or anisotomous branches, branching angles 15°-60°. Fertile axes isotomously branch at least three times, intervals between successive branches 1.4-2.4 cm, each final one terminating in a spike. Spikes, 7.2-20 mm long and 3-3.8 mm wide, usually composed of 6-23 sporangia. Sporangia spirally and closely arranged along the fertile axis, generally in three rows. Sporangia flattened, round to elliptical in face view, 1.4-3.0 mm high and 1.8-3.6 mm wide. Stalks, 0.7-1.2 mm long and 0.3-0.7 mm wide, departing from the axis at an angle of 20°-40°. Sometimes, concave junction between sporangial body and stalk clear. Dehiscence along the entire margin of sporangium; thickened border, up to about 0.7 mm wide at distal margin and gradually tapering proximally into stalk
