GEOLOGICA BALCANICA, 32.2-4, Sofia, Decemb. 2002, p. 209-213 Danian Normapolles from the conglomeratic formation near Panagyurishte and Strelcha (Sredna Gora Mountains, Bulgaria) Polina Pavlishina Sofia University "Sv. Kl. Ohridski", Department of Geology and Palaeontology, 1504 Sofia (Submitted: 20. 05. 2002 accepted for publication: 10. 06. 2002) flOA UHa naeAUUJUHa - PaiiCKUe Normapolles U3 Abstract. The paper presents description and illustra­ KOIUAOMepamHOU mOAblJ.IU 6 pauo11e flauaziOpUIJ.Ie U tions of I 0 Normapolles species obtained from the con· CmpeA~a (Cped!tRR zopa, 5oMapuR). 8 cTaTbe npe.ncTa­ glomeratic formation near Panagyurishte and Strelcha aneHHO TaKCOHOMH'IeCKOe OnHCaHHe H HJIJIIOCTpHpO­ and new for the Bulgarian palynoflora. They belong BaHHbl .necl!Tb BH.lla Normapolles H3 KOHrJIOMepaTHOH mainly to the genera Nudopollis, Oculopollis, S em io­ TOJihlllH a paifoHe IlaHanopHme H Crpen'la. 0HH culopollis and lnterporopollenites. The taxa are consid­ liBJiliiOTCll HOBb!MH .llJill 6onrapCKOH naJIHHO$nOpbl H ered to be stratigraphically important. Their concur­ npHHa.nnelKaT masHo K cne.nyiOUlHM po.naM: Nudopollis, rent ranges and correlation to the already known as­ Oculopollis. S emioculopollis u Interporopollenites. Ycra­ semblages of the same age in the Normapolles prov­ HoaneHHble BH.llbl C'IHTaiOTCll CTpaTHrpa<I>HlfeCKH BalK­ ince suggests a latest Maastrichtian to early Paleocene Hb!MH. l1x napannenbHOe pacnpocrpaHeHHe H KOppenl!­ (most probably Danian) age for the conglomeratic for­ UHll C HJBeCTHblMH yll<e O.llHOB03paCTHblMH aHCaM6JiliMH mation. o paMKHX MHKpo<flnopHCTH'IeCKOK npoBHHUHH Norma­ polles .narHpyer noJ.nHeMaacrpHXTCKHK - paHHenaneo­ ueHCKHK (sepOliTHO .llaHCKHK) B03paCT .llJlll KOH rJIO­ MepaTHOK TOJibUlH. Pavlishina, P. 2002. Danian Normapolles from the conglomeratic formation near Panagyurishte and Strelcha (Sredna-Gora Mountains, Bulgaria).- Geologica Bale., 32, 2-4; 209-213 Key words: palynology, pollen, Normapolles, latest Maastrichtian, Danian, conglomeratic forma­ tion, Bulgaria. Introduction Middle Eocene (XpHCTOB, 1953; A.Jia,u)KOBa­ XpHc\fesa et al., 1991) and Upper Eocene The conglomeratic formation south of the (l.lyHeB et al., 1963) mainly based on its overall towns Panagyurishte and Strelcha occurs as two stratigraphic position and without any palaeon­ parallel strips - Mechit and Rayna Knyaginya tological evidence. (Fig. 1). It consists mostly of polymictic con­ Recent field revisions and palynological sam­ glomerates and sandstones. The sandstones are pling have brought new data concerning the age present as separate beds, and sometimes con­ assessment of the conglomeratic formation. tain abundant coalefied plant debris. The age of Four samples, taken from three different sec­ the conglomeratic formation has been consid­ tions, namely - near the spring Rayna Knya­ ered as Maastrichtian (,[(HMHTJ'OBa et al., 1984), ginya (Popintsi strip and northern strip) and 27 Geologica Balcanica, 2-4/2002 209 r-1 Neogene, L__j Quaternary llli:Wtl@l Maastrichtian Oysch ITIJTITI] Turonian - Campanian r18':m con&Jomentlc ronnatlon C: : C.oj L t ,..__t ~ (Upper Maastrichtian? _ x x x a e '(" aceous pn-Aiplne basement Lciwer Palaeocene) lnlruJ ons Ed 0 Skm sampled section with NormapoDes Fig. l. Geological map with location of the sampled sections (Zagorchev et al., 2001) along the road from Strelcha towards Dyulevo, Systematic descriptions have yielded palynological assemblages repre­ sented mainly by pollen from the characteristic The descriptive terminology used here incorpo­ morphological group Normapolles. The strati­ rates the terms proposed by Goczan et al. graphic distribution of the registered Norma­ (1967). The taxonomic list follows the prag­ polles taxa suggests Lower Palaeocene, most matic alphabetical ordering of taxa suggested probably Danian for the conglomeratic forma­ by the same authors. tion. The location of the sections and sample positions are already discussed in Zagorchev et Stemma Normapolles Pflug, 1953b al. (2001) and are shown in Fig. 1. Genus lnterporopo/lenites Weyland & Krieger, Danian Normapolles are still not described 1953 from the Bulgarian territory. This publication Type species by original designation, p.20 is presents the results of their first study and has Interporopollenites proporus Weyland & two main objectives - description and illustra­ Krieger, 1953 from the Aachen Formation in tion of the species recorded and their correla­ Germany. tion to the already known assemblages of the same age in the Normapolles province (Hem­ lnterporopo/lenites fsp. 1 Kedves & Hemgreen, green & Chlonova, 1984) with emphasis of 1980 Pl. I, fig. 3 those from the type Maastrichtian and Danian & 1980. lnterporopollenites fsp. l Kedves & Herngreen, p. areas (Kedves, 1979; Kedves Herngreen, 528, pl. ll, figs . 35, 36; pl. 12, figs . l , 2. 1980). The samples were processed according to Description. Equatorial contour triangular standard palynological technique, including with rounded angles and slightly convex sides. HCL, HF treatment and heavy liquid separa­ The exine. is two - layered, both layers are of tion at the Palynological Laboratory, Geologi­ equal thickness. The inner contour is nearly cir­ cal Institute, BAS. The slides containing the il­ cular. The exogermina1s are oval, lifted in equa­ lustrated specimens are stored in the collections torial view and are closed by annulus-like thick­ of the Geological Institute, BAS as No ening. The endoapertures are large with strong MF.1.2002.8.1-4. thickening. No interloculum. 210 Stratigraphic range. Maastrichtian and Da­ Nudopollis endangulatus (Pflug, 1953a) Pflug, nian of Denmark and the Netherlands. 1953b from Eocene strata in Europe. Occurrence. Samples 1 (M - 1/2000), 2 (M - Nudopollis apertus (Pflug, 1953a) Pflug, 1953b 2/2000) and 4 (7 /99), conglomeratic formation. Pl. I, figs. 12, 13 Genus Oculopollis Pflug, 1953b 1953a. Extratriporopollenites apertus Pflug, p. 72, pl. 6, Type species by original designation, p. 110 is figs. 57 - 63. 1953b. Nudopollis apertus (Pflug) Pflug, p. 109, pl. 25, Oculopollis concentus Pflug, 1953b from the figs . 56 - 58. Aachen Formation in Germany. Type. Holotype is the specimen figured by Oculopollis extensus Weyland & Krieger, 1953 Pflug (1953a, p. 72, pl. 6, figs. 57, 58, 59). Pl. I, figs. 1, 2 Description. The equatorial contour is trian­ 1953. Oculopollis extensis Weyland & Krieger, p. 19, pl. 2, gular with concave sides. The surface is finely fig . 9. 1979. Oculopollisfsp. Kedves, p. 168, pl.l, figs. 5, 6. granulate. Inner contour .is nearly circular. The 1980. Oculopoliis extensus Weyland & Krieger; Kedves & exoapertures are long, narrow colpi with devel­ Herngreen, p. 500, pl. 6, figs. 3, 4. oped strong annulus. The endoapertures are Type. Holotype is· the specimen figured by pori with small atrium. Vestibulum and inter­ Weyland & Krieger (1953, p. 19, pl. 2, fig. 9). loculum are lacking. Weakly oculi are devel­ Description. Equatorial contour triangular oped. with concave sides. The surface is smooth. Ex­ Stratigraphic range. Maastrichtian to Middle tremely prominent aperture regions are very Paleocene in Europe. characteristic. Po1yanulate. The oculi are large Occurrence. Samples 2 (M - 2/2000) and 4 and prolongated, extending nearly to the centre. (7/ 99), conglomeratic formation. Small interloculum. Endanulus is not observed. Nudopollis thiergartii (R. Potonie, 1951) Pflug, Stratigraphic range. Senonian of Germany; 1953b Maastrichtian to middle Paleocene of Denmark Pl. I, figs . 10 , 11 and the Netherlands. · 1953b. Nudopollis thiergarti (R. Potonie) Pflug, p. 109, pl. Occurrence. 2 (M - 2/2000), conglomeratic 25, figs. 25 - 48. formation 1980. Nudopollis thiergartii subsp. thiergartii (R. Poto­ nie); Kedves & Herngreen, p. 522, pi: 9, figs . 13, 14. Oculopollis minoris W. Krutzsch, 1973 Pl. I, figs . 14,15 ' .· Type. Lectotype is the specimen figured by 1973. Oculopollis minoris W, Krutzsch, p.87, pl. 2, figs. 16- Pflug (1953b, p. 109, pl. 25, figs. 24, 31, 32, 44). 20. Description. Equatorial contour triangular 1979. Oculopollis minoris W. Krutzsch; Kedves, p. 168, pl. with straight to slightly convex sides. The sur­ 1, figs . 1, 2. face is finely rugulate. The exine is two-layered, 1980. Oculopollis minoris W. Krutzsch; Kedves & Herng­ reen, p. 500, pl. 6, figs. 1, 2. both layers are in close contact without forming an interloculum. The exoapertures are vertical Type. Holotype is the specimen figured by narrow colpi with several developed annuli and Krutzsch (1973, p. 87, pl. 2, figs. 16-20) small praevestibulum. The endoapertures are Description. Equatorial contour triangular very small without endannulus. Oculi are not with markedly convex sides. Inner contour is observed. nearly circular. The surface is fmely granulate. Stratigraphic range. Upper Maastrichtian to The oculi are very well developed, sculptured Middle Paleocene in Central Europe and The and extending almost up to the centre of the Netherlands. grain. Polyanulate. The interloculum and vesti­ Occurrence. Samples 2 (M- 2/ 2000) and 4 bulum are faint. The markedly developed oculi (7 I 99), conglomeratic formation. and largely convex sides are very characteristic for the species. Genus Plicapollis Pflug, 1953b Stratigraphic range. Maastrichtian to Middle Type species by original designation, p. 97 is Paleocene of Germany, Denmark and The Ne­ Plicapollis serta Pflug, 1953b from the Aachen therlands. Formation in Germany. Occurrence. Samples 1 (M-1/2000), 2 (M-2/ Plicapollis silicatus Pflug, 1953b 2000)