IDNAME urn:idName:fossilplants.info:species:385ED692-A4F6-4CBD-9040-86557B9C0442 species
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Dibracophyton acrovatum

Dibracophyton acrovatum S.-G. Hao, J.-Z. Xue, X. Zhu, D.-M. Wang Rev. Palaeobot. Palynol., 171: 74. 1 Feb 2012
Name
Dibracophyton acrovatum
Rank
Species
Generic Name
[Genus] Dibracophyton
Authors (Pub.)
Hao S.-G. Xue J.-Z. Zhu X. Wang D.-M.  
Publication
A new genus of Early Devonian plants with novel strobil...
Journal
Review of Palaeobotany and Palynology
Volume
171
Page number
74
Year
2012

Fossil Status
stems (with sporangia)

Stratigraphy
Pragian
Strat. comment
Posongchong Formation
Location
Zhichang village, Wenshan District, Yunnan Province, China
Paleoregion
Cathaysia (South)
Data for Holotypus
Repository
Beijing University, Department of Geology, Beijing, China
Repository Number
PKU-Zh. Di-01
Diagnosis
Characters as for the genus. Basal axes creeping, thicker than the vegetative and fertile axes which arise at a nearly vertical angle. Vegetative axes branching dichotomously at angles ca. 40°; lateral appendages up to at least 16 mm long, departing at angles of 60°–90° from the vegetative axes at irregular intervals; lateral appendages not planated, once to thrice divided at angles of 70°–90°. A few lateral appendages, distributed on lower regions of fertile axes. Strobili, long-cylindrical in shape, up to 83 mm in length. Fertile units, ca. 6.7 mm long and ca. 2.8 mm wide, variable in shape, equal to the length of the bracts and equal to the width of sporangia when bracts are thinner than sporangia; fertile units loosely or moderately spaced at basal parts of strobili and densely spaced in the distal parts. Lower bracts long-ovate and distal bracts linear, folding inward to cover the sporangium. Sporangia long-elliptical, ca. 4.6 mm long and ca. 2.8 mm wide, with short stalks.
Links by type

Genus
Genus Dibracophyton

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