The Late Eocene Flora Of Kučlín Near Bílina In North Bohemia Revisited
Author
Kvaček, Zlatko
Institute of Geology and Palaeontology, Faculty of Science, Charles University in Prague, Albertov 6, 128 43 Prague 2, Czech Republic; e-mail: kvacek @ natur. cuni. cz
Author
Teodoridis, Vasilis
Department of Biology and Environmental Education Studies, Faculty of Education, Charles University in Prague, M. D. Rettigové 4,116 39 Prague 1, Czech Republic; e-mail: vasilis. teodoridis @ pedf. cuni. cz
text
Acta Musei Nationalis Pragae Series B
2011
2011-11-30
67
3 - 4
83
144
journal article
10.5281/zenodo.13183351
2533-4069
13183351
Pronephrium stiriacum
(
UNGER
) E.
KNOBLOCH
et
KVAČEK
Pl. 1, figs 6, 10
1847
Polypodites styriacus
UNGER
; p. 121, pl. 36, figs 1-5.
1866
Aspidium fischeri
auct. (non
HEER
); Ettingshausen, p. 17, pl. 3, figs 9-11.
1852
Goniopteris stiriaca
(
UNGER
) A.
BRAUN
, p. 553.
1855
Lastraea stiriaca
(
UNGER
)
HEER
, p. 31, pls 7-8.
1960
Cyclosorus stiriacus
(
UNGER
)
CHING
et
TAKHTAJAN
in Fataliev, p. 1217.
1962
Cyclosorus stiriacus
(
UNGER
)
GRAMBAST
, nom. illegit, p. 24, text-fig. 4.
1963
Abacopteris stiriaca
(
UNGER
)
CHING
, p. 298.
1976
Pronephrium stiriacum
(
UNGER
) E.
KNOBLOCH
et
KVAČEK
, p. 12, pl. 1, fig. 1.
2002a
Pronephrium stiriacum
(
UNGER
) E.
KNOBLOCH
et
KVAČEK
; Kvaček, p. 221, pl. 4, fig. 7.
Incomplete sterile pinnae more than
50 mm
long and
14 mm
wide with a stout midrib, crenate on sides according to almost fused pinnules, incisions between pinnules
2–3 mm
, pinnules max.
7 mm
long, at angles of 55–60°, at the apex rounded and slightly turned upwards, midrib of pinnules almost the same thickness as secondaries, straight to slightly bent on very end, secondaries in 6 pairs on each side, the basal united between adjacent pinnules (goniopterid), high- er slightly bent, merging the margin.
D i s c u s s i o n: Leaf fragments of this common Tertiary swamp fern, showing a goniopterid venation (pl. 4, fig. 7), were wrongly assigned to
Aspidium
due to compression of the specimens and poor preservation at Kučlín by
Ettingshausen (1866)
and assigned to a different morphotype. In one of the specimens (BP. 55.2319.1, not illustrated by Ettingshausen) and a new material, the goniopterid venation is clearly seen. The specimens from Kučlín are very rare and indeed more delicate than the
type
material from the Miocene of
Styria
(Schöneck,
Unger 1847
, pl. 36, figs 1-4) and other places in the European Tertiary (e.g.,
Barthel 1976
), probably due to different non-swampy environments.
Pronephrium penangianum
(
HOOK
.)
HOLTTUM
(syn.
Abacopteris penangiana
(
HOOK
.)
CHING
) from the Himalayas is considered according to several authors (e.g.,
Ching 1963
) as the nearest living relative.
M a t e r i a l s t u d i e d: BP 55.2319.1, BP 55.2353.1
(
two specimens
on the same slab),
DB
KUC 234
.
?
Lomariopsidaceae