Middle Miocene palynoflora of the Legnica lignite deposit complex ...

44
1953 Intratriporopollenites instructus (Potonié) n.
comb., Thomson & Pfl ug, p. 89, pl. 10, fi gs
10–23.
R e m a r k s. According to many authors (Thomson
& Pfl ug 1953, Thiele-Pfeiffer 1980, Planderová
1990, Ziembińska-Tworzydło 1996) pollen
grains of the morphological taxon Intratriporopollenites
instructus resemble pollen of the
recent genus Tilia L. However, in the Miocene
deposits of Wiesa (Germany) similar ones have
been found together with fl owers of the fossil
species Burretia instructa (Potonié) Mai (Mai
1961). According to this author the fossil fl owers
resemble those of the recent genera Brownlowia
Roxb. and Pentace Hassk. Pollen grains
of Intratriporopollenites instructus occur in
Europe in the Oligocene to Pliocene deposits,
with maximum in the Middle Miocene, and
represent warm-temperate (A1) element (Mai
1961, Ziembińska-Tworzydło 1996). Several
pollen grains of this taxon were found in the
studied material.
(120) Intratriporopollenites insculptus
Mai 1961
Pl. 14, fi gs 10, 11
1961 Intratriporopollenites insculptus n. sp., Mai,
p. 65, pl. 11, fi gs 10–27.
R e m a r k s. This taxon is similar to pollen
grains of the recent subfamily Brownlowioideae
(Mai 1961). Brownlowia argentata is
a component of mangrove formation on Borneo,
where pollen grains of this type occur in deposits
since the Eocene (Muller 1964). In Poland
Intra triporopollenites insculptus is known
from the Miocene of central and south-western
part of the Polish Lowland. They also occur in
the Miocene of Hungary, Oligocene – Miocene
of Germany and former Soviet Union, as well
Pliocene of Slovakia (Ziembińska-Tworzydło
1996). They represent warm-temperate (A1)
element (Ziembińska-Tworzydło 1996). Only 3
pollen grains of this taxon were found in bottom
sample of Legnica 33/56 profi le.
Pollen grains of the two above-mentioned
morphological species (Intratriporopollenites
insculptus and I. instructus) were isolated
from fl ower buds of one fossil species Craigia
bronnii (Unger) Z. Kvaček, Bůžek et Manchester,
from the Late Miocene fl ora of Hambach,
Germany (Kvaček et al. 2002).
Subfamilia TILIOIDEAE
(121) Intratriporopollenites
cordataeformis (Wolff 1934) Mai 1961
Pl. 14, fi g. 8a, b
1934 Tiliae-pollenites instructus cordataeformis n. f.,
Wolff, p. 73, pl. 5, fi g. 22.
1961 Intratriporopollenites cordataeformis (Wolff) n.
comb., Mai, p. 67, pl. 13, fi gs 4–7.
R e m a r k s. These pollen grains are the nearest
pollen of recent Tilia cordata Mill., and represent
cool-temperate (A2) element (Ziembińska-
Tworzydło et al. 1994a). According to Mai
(1961) Intratriporopollenites cordataeformis is
a Pliocene taxon. Similar pollen grains have
been found in the Upper Miocene and Pliocene
of Paratethys (Planderová 1990), and Middle
Miocene of Sudetic Foredeep (Ziembińska-
Tworzydło et al. 1994a). Only 3 pollen grains of
this type were found in the analysed material
in one sample from the Mużaków series.
Nowadays the former family Tiliaceae contains
about 41 genera and 400 species of trees
and shrubs, rarely herbs, extended mainly in
temperate zone. The genus Tilia (about 30
species of deciduous trees) occurs in northern
temperate zone (Heywood 1978, Bugała 1991).
According to Mai (1961) the Tilia genus can
be demonstrated with certainty by pollen only
since the Pliocene.
Subfamilia STERCULIOIDEAE
Reevesia Lindl.
Reevesiapollis Krutzsch 1970
(122) Reevesiapollis triangulus
(Mamczar 1960) Krutzsch 1970
Pl. 14, fi g. 13
1960 Pollenites triangulus n. spm., Mamczar, p. 220,
pl. 14, fi g. 202.
1970c Reevesiapollis triangulus (Mamczar) comb.
nov., Krutzsch, p. 374, pl. 5, fi gs 19–35, pl. 6,
fi gs 1–11, pl. 7, fi gs 1–44, pl. 8, fi gs 1–21.
R e m a r k s. Pollen grains of similar structure
have been previously described under
various names (see Sadowska 1973), and connected
with the recent families Salicaceae,
Oleaceae, Caprifoliaceae, Hamamelidaceae,
Tiliaceae, and Balsaminaceae. Sadowska (op.