Hydrochariphyllum buzekii Kvaček

Plant Fossil Names Registry Number: PFN003679

Act LSID: urn:lsid:plantfossilnames.org:act:3679

Author: Z. Kvaček

Rank: species

Genus: Hydrochariphyllum Kvaček

Reference for this name: Kvaček, Z. (1995): The Hydrocharitaceae foliage from the North Bohemian Early Miocene. – Věstník Ústředního ústavu geologického 70: 21–27. Not public

Page of description: 22

Original diagnosis/description

Leaves suborbicular to reniform, longly petiolate, obviously of thin, membranaceous texture, (l.2-)2-4(-5)cm long and (1-) 1.8-4.5(-6) cm wide, rounded at the apex and truncate to widely cuneate at the base, abruptly attached to a thin (1.5 mm) petiole (preserved length 1.2 cm). Venation palmate, acrodromous, consisting of one medial (midrib) and 4 lateral primaries radiating from the base and joining in the apex or the margin, and numerous parallel interprimaries of two orders (4-8 between the two primaries) connected with cross veins of at least two orders, subparallel to each other, oblique (under the angles of 60-85°), thicker wider apart. On the impressions of the abaxial leaf side polygonal meshes (? aerenchyma) about 0.2 mm across rarely visible at some places, not forming a distinct pad.

Stratigraphy

Neogene, Miocene, Burdigalian
Lower Miocene, Most Formation

Locality

Czech Republic
Bílina Mine (former Maxim Gorkij) at Bílina, fossiliferous horizon 47, Most Basin,