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Zaton 2010 Part 1.Cdr Palaeontographica, Abt. A: Palaeozoology - Stratigraphy Article Vol. 292, Issues 4 -6 : 115-213 Stuttgart, September 2010 Bajocian - Bathonian (Middle Jurassic) ammonites from the Polish Jura. Part 2: Families Stephanoceratidae, Perisphinctidae, Parkinsoniidae, Morphoceratidae and Tulitidae by M i c h a l Z a t o n With 15 plates, IS text-figures and 4 tables Abstract The present paper is the second, and last, part o f a larger monographic work concerning the systematic descriptions o f the Bajo- cian-Bathonian (Middle Jurassic) ammonite fauna irom the Polish Jura, south-central Poland. In this part, the systematic description ot the ammonite species belonging to the families Stephanoceratidae, Perisphinctidae, Parkinsoniidae, Morphoceratidae and Tulitidae is given. Fifty seven species, twenty one o f which left in open nomenclature, representing fifteen genera ( Teloceras, Normannites, G a ran tian a, C adom ites, 'iLeptosphinctes, Vermisphinctes, Procerites, Wagnericeras, Choffatia, Parkinsonia, Morphoceras, Asphinctites, Tulites, Bullatimorphites and Morrisiceras) are described. The stratigraphic ranges o f the species coming from investigated sections of the Polish Jura were presented, as well. The palaeobiogeographic analysis on the species level shows, that since latest Bajocian (Parldn- soni Chron) up to Late Bathonian (Orbis Chron), the ammonite assemblages o f the Polish Jura were most similar to those o f the western and north-western regions. Although the influence o f Tethyan ammonite faunas is visible in particular chrons, it was insig­ nificant. Only during the latest Bajocian (Parkinsoni Chron), the strong influence o f Tethyan ammonites is clearly visible and linked to the transgressive pulse from the south. Keywords: Bajocian, Bathonian, ammonites, palaeobiogeography, Poland Table o f contents 1. Introduction..................................................................................................................................................................................................... 116 2. Geological setting........................................................................................................................................................................................... 116 3. Material and methods .................................................................................................................................................................................... 116 4. Systematic palaeontology.............................................................................................................................................................................. 120 5. Palaeobiogeographic affinities o f the latest Bajocian and Bathonian ammonites o f the Polish Jura ............................................... 170 5-1 Late Bajocian (Parkinsoni Chron: ~ 1684 - 167.7 ± 3.5 Ma) ...................................................................................................... 170 5-2 Early Bathonian (Zigzag - Tenuiplicatus chrons: ~ 167.7 - 166.9 ± 3.5 M a ).............................................................................. 171 5.3 Middle Bathonian (Subcontracts - Morrisi chrons: ~ 166.5 - 166.1 ± 3-5 Ma) ...................................................................... 173 5.4 Late Bathonian (Hodsoni - Orbis chrons: ~ 166.1 - 165.2 ± 3.5 M a )................................................................................... .... 175 6. Acknowledgements ....................................................................................................................................................................................... 177 7. References...................................................................................................................................................................... 177 > Adress o f the author: Mich At Zaton, University o f Silesia, Faculty o f Earth Sciences, B^dzinska 60, PL-41-200 Sosnowiec, Poland, e-mail: [email protected] © 2010 E. Schweizerbart sche Verlagsbuchhandlung, Stuttgart, Germany www.schweizerbart.de nr7‘©n44?/in/fPQ?..nnns! « 44 ss 116 Michal Zaton 1. Introduction D a y c z a k -C a l i k o w s k a et al. 1997, K o p i k 1998, M a j e w s k i 2000, M a t y j a & W i e r z b o w s k i 2000, The ammonites of the families described in the Z a t o n & M a r y n o w s k i 2006, S z c z e p a n i k et al. present part of a monograph, and coming from the 2007). The sediments gently dip at an angle of < 2° in Polish Jura haven not been thoroughly studied so far. the north-eastern direction (Z n o s k o 1960). They are Many ammonite species were only mentioned at an often capped by condensed Callovian deposits, con­ occasion of stratigraphic works (e.g., R e h b i n d e r sisting of limestones, sandstones and sandy-limestones 1914, R o z y c k i 1953, D a y c z a k -C a l i k o w s k a et (D a y c z a k -C a l i k o w s k a et al. 1997) or directly by al. 1997, M a t y j a & W i e r z b o w s k i 2003, M a t y j a Quaternary sands or gravels. The Bajocian-Bathonian et al. 2006a, b,c) or illustrated (D a y c z a k -C a l i k o w s - ore-bearing clays are thought to be deposited in a quiet k a et al. 1988, K o p i k 1998). Only K o p i k (1974, marine, generally below the storm wave-base, environ­ 2006) described the representatives of the genus Ca- ment (M a t y j a et al. 2006a, b, c). On the basis o f both domites and some tulitids, respectively. M a t y j a & organic (M a r y n o w s k i et al. 2007) and inorganic W i e r z b o w s k i (2000) described some representa­ geochemical investigation (S z c z e p a n i k et al. 2007, tives of the uppermost Bajocian-Lower Bathonian Z a t o n et al. 2009), the clays under discussion were Parkinsonia, Asphinctites and Wagnericeras, and later deposited under favourable, oxic conditions prevail­ they (M a t y j a & W i e r z b o w s k i 2001) focused on ing on the sea-floor. the Asphinctites-Polysphinctites dimorphic pair. Re­ The uppermost Bajocian and Bathonian sedi­ cently, Z a t o n (2007a) reported a precise stratigraph­ ments of the Polish Jura area are currently exposed ic position of a single species Tulites cadus, and later mainly at clay-pits, the majority of which is still active. (Z a t o n 2008) revised the taxonomic status of the The ammonites have been collected in twenty clay-pits Middle Bathonian genus Morrisiceras. situated at eleven localities. Going from south to north The present paper is the second, and the last, part of the Polish Jura, they are as follow (Text-fig. IB): of a monographic study concerning the Bajocian-Ba- Ogrodzieniec, Blanowice, Zarki, Wrzosowa, Bugaj, thonian ammonite fauna of the Polish Jura, south- Gnaszyn and Kawodrza, Grodzisko, Faustianka, central Poland. In this part, the systematic descriptions Mokrsko and Krzyworzeka. Some of the specimens of ammonites of the families Stephanoceratidae, studied, however, also come from the now closed iron Perisphinctidae, Parkinsoniidae, Morphoceratidae ore-mines ‘D^bowiec’ and ‘Teodor’, located in the and Tulitidae are presented, and the palaeobiogeo- Poraj-Kamienica Polska south of the Czestochowa graphical affinities of the whole studied ammonites of city, the heaps at Rudniki and Poczesna (located just that area have been drawn. north ofZawiercie and south o f Czestochowa, respec­ tively), and currently abandoned and recultivated clay- 2. Geological setting pit at Korwinow (near Wrzosowa in the environs of The Polish Jura is a monoclinal structure spread­ Czestochowa). As the detailed characteristic o f the lo­ ing from south-east to north-west of the Cracow- calities and ammonite-bearing sections have already Wielun Upland in south-central Poland (Text-fig. 1A - been presented in the previous part of the monograph, B). The Middle Jurassic sediments in that area rest it will not be repeated here again. However, the upon the Lower Jurassic, and are overlain by Upper biostratigraphic correlation of the sections studied is Jurassic or directly by thin Quaternary cover (R o z y c k i shown again for clearance on the Text-fig. 2. 1953, D a y c z a k -C a l i k o w s k a et al. 1997). In the Polish Jura, the Bajocian is exposed mainly by its up­ 3. Material and methods , permost part (see also below). The Upper Bajocian The ammonite collection has been primarily gath­ through Bathonian epicratonic deposits under discus­ ered by the present author during the field-works dur­ sion, consist of monotonous sequence of dark-grey ing the years 2003-2005 in the area of the Polish Jura. and unconsolidated clays with variable content of The collection is housed at the Faculty of Earth Sci­ coarser fraction. They are intercalated by massive sid- ences, University of Silesia at Sosnowiec (acronym erites, as well as carbonate concretions, either occur­ GIUS 8). A large collection of ammonites also come ring as single bodies or more or less continuous hori­ from the Institute o f Geology, University of Warsaw zons. This complex in the Polish Jura is known as the (acronym IGPUW /J), collected by Potocki (1972) ‘Ore-bearing Czestochowa Clay Formation’ (e.g., in the Kawodrza and Gnaszyn area, the late Prof. Bajocian - Bathonian (Middle Jurassic) ammonites from the Polish Jura 117 Krzyworzeka Mokrsko FaustiankaJ 'KJobuck / ‘ Knilmv [Grodzisko Carpathians "Czestochowa Gnaszyn kawodr/.-i Wrzosowai lilanovvicc 'Zawicrcic ;Ogrodzieniec ‘ Anna ] Kawodrza Dolnaclay-pit Kawodrza "Gnaszyn clay-pit clay-pit Knopik) Gnaszyn clay-pit Dolny "Lcszczynski LAB’clay-pit day-pit
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