Yulebacaulis

Yulebacaulis
Temporal occurrence
	Lower Cretaceous
Locations
	Australia;
Systematics
without rank:	Streptophyta
Empire :	Plants (Plantae)
Department :	Vascular plants (tracheophyta)
	Ferns
Order :	Zygopteridales
Genre :	Yulebacaulis
Scientific name
	Yulebacaulis
	Tidwell & Rozefelds

Yulebacaulis is a genus from the order of the primitive ferns, Zygopteridales . It comes from the Lower Cretaceous of Australia and consists of the only species Yulebacaulis normanii . With this genus the Zygopteridales reach into the Mesozoic .

features

The known fossils of Yulebacaulis comprise the outer bark, leaf stalks, Aphlebiae ( Nebenblatt -like structure) and roots. The vascular bundles of the petiole are watch-glass-shaped (clepsydroid), and parenchyma cells form a loop at both ends of the vascular bundle . There are numerous, non-thread-like Aphlebiae on the petioles.

supporting documents

↑ Wolfgang Frey, Eberhard Fischer, Michael Stech: Bryophytes and seedless Vascular Plants . In: Wolfgang Frey (Ed.): Syllabus of Plant Families - A. Engler's Syllabus of Plant Families . 13th edition. tape 3 . Borntraeger, Berlin / Stuttgart 2009, ISBN 978-3-443-01063-8 , pp. 326 .

[Syllabus-1] Wolfgang Frey, Eberhard Fischer, Michael Stech: Bryophytes and seedless Vascular Plants . In: Wolfgang Frey (Ed.): Syllabus of Plant Families - A. Engler's Syllabus of Plant Families . 13th edition. tape 3 . Borntraeger, Berlin / Stuttgart 2009, ISBN 978-3-443-01063-8 , pp. 326 .