A new uppermost Albian flora from Teruel province, northeastern Spain
Author
Sender, Luis Miguel
Author
Villanueva-Amadoz, Uxue
Author
Diez, Jose Bienvenido
Author
Sanchez-Pellicer, Raquel
Author
Bercovici, Antoine
Author
Pons, Denise
Author
Ferrer, Javier
text
Geodiversitas
2012
2012-06-30
34
2
373
397
http://dx.doi.org/10.5252/g2012n2a7
journal article
10.5252/g2012n2a7
1638-9395
5380589
Aquatifolia
cf.
fluitans
Layers B
to D (
Fig. 6B, C
)
SPECIMENS. — MPZ 2010/1130 to MPZ 2010/1134 and MPZ 2009/342.
DESCRIPTION
Leaf orbicular to ovate, petiolate. Base cordate. Base angle wide obtuse. Petiole stout with an expanded fusiform float in its lower part. Float length is
60mm
long and
17 mm
wide in its central part. Leaf blade up to
39 mm
long and
45 mm
wide (no complete specimens). Margin crenate with tooth
type
convexconvex.Primary venation basal actinodromous with one medial vein branching up to the margin and four lateral primary veins which fork several times, gradually decreasing in thickness toward the margin. Angle between primary veins 45°. Branches from primary veins join to
form polygonal
large meshes. Secondary venation apparently craspedodromous.Tertiary and quaternary veins forming small polygonal meshes.
REMARKS
Ŋe unique combination of spherical to fusiform floats and foliar lamina with Nymphaeaceae-like venation together with other characteristics is charateristic for the genus
Aquatifolia
Wang & Dilcher
from the Hoisington III locality,
Kansas
,
USA
(
Wang& Dilcher 2006a
). Ŋe Spanish fossils are closely similar to the
type
species
Aquatifolia fluitans
(
Wang & Dilcher 2006a
)
, but because leaf margin and endings of veins are not well preserved,we hesitate to include the spanish material in the same species. Currently the genus has only been recovered from the Estercuel outcrop and the Hoisington III locality.