Revision Of The Early Oligocene Flora Of Hrazený Hill (Formerly Pirskenberg) In Knížecí Near Šluknov, North Bohemia
Author
Kvaček, Zlatko
Charles University in Prague, Faculty of Science, Albertov 6, CZ - 128 43 Praha 2, the Czech Republic; e-mail: kvacek @ natur. cuni. cz;
Author
Teodoridis, Vasilis
Charles University in Prague, Faculty of Education, Magdalény Rettigové 4, CZ - 116 39 Praha 1, the Czech Republic; e-mail: vasilis. teodoridis @ pedf. cuni. cz;
Author
Zajícová, Jana
Charles University in Prague, Faculty of Science, Albertov 6, CZ - 128 43 Praha 2, the Czech Republic; e-mail: jana. zajicova @ natur. cuni. cz.
text
Acta Musei Nationalis Pragae Series B
2015
2015-10-31
71
1 - 2
55
102
http://dx.doi.org/10.14446/amnp.2015.55
journal article
10.14446/AMNP.2015.55
2533-4069
13182943
Pinus
(subgen.
Pinus
) cf.
rigios
(
UNGER
)
ETTINGSHAUSEN
Pl. 1, Fig. 4–5
? 1866
Pinus rigios
(
UNGER
)
ETTINGSHAUSEN
, p. 41, pl. 13, fig. 11–12.
Fragmentary pine needles in ternate fascicle, ca.
0.5–0.7 mm
thick, trigonal in cross section, the maximum preserved length
45 mm
, sheath permanent,
2 mm
long.
D i s c u s s i o n. Fossil pine needles are rare in the Palaeogene deposits of the České středohoří Mountains (e.g. Žichov and Matrý – see
Ettingshausen 1866
,
Akhmetiev et al. 2009
, as
Pinus rigios
(
UNGER
)
ETTINGSHAUSEN
). Some previously reported needle-like fossils assigned by
Menzel (1901)
to pines from Suletice-Berand turned out to represent monocots (
Kvaček and Walther 1995
). The occurrence of pine pollen noted in several cuticle preparations confirms pine stands nearby the site of Knížecí during the time when the fossiliferous diatomite was deposited.
P. rigios
was originally described from the lower Miocene of Bílina in the North Bohemian Basin, where it is associated with seed cones of
P. engelhardtii
MENZEL
. A
more accurate determination of the present material is not really possible because of its fragmentary nature. Co-occurring seed cones, which would more reliably characterise this pine, have not been so far recovered. The needles can be referred to subgen.
Pinus
and may represent the same species as those recovered at Žichov and Matrý.
M a t e r i a l. Two needle fascicles, EK 237a, b, 238.