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Cephalopod fauna and stratigraphy of the Adnet type red deposits of the Krížna unit in the Western Tatra Mountains, Poland

Myczyński R., Jach R.

Annales Societatis Geologorum Poloniae

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2009

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Vol. 79, No 1

27-39

EN

The Lower Jurassic Adnet type red limestones and marlstones (Kliny Limestone Member, Huciska Limestone Formation) of the Krížna unit in the Tatra Mountains comprise cephalopod fauna represented by ammonites, belemnites and rarely by nautiloids. Ammonites belong to the families Phyloceratidae, Lytoceratidae, Hildoceratidae and Dactylioceratidae and indicate Early Toarcian Serpentinum Zone, Middle Toarcian Bifrons Zone (most probably Sublevisoni and Bifrons Subzones) and Late Toarcian Pseudoradiosa Zone. Hence, the age of Adnet type deposits may be estimated as Early Toarcian-Late Toarcian. Relatively moderate diversity of ammonite assemblage is noticed. Ammonites and nautiloids are preserved mainly as internal moulds, only some specimens display preserved calcified shells. Part of this macrofauna has resedimented character. Studied ammonite assemblage is closely related to that of the Mediterranean Province.

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Toarcian, Aalenian and Early Bajocian (Jurassic) ammonite faunas and biostratigraphy in the Pieniny Klippen Belt and the Tatra Mts, West Carpathians

Myczyński R.

Studia Geologica Polonica

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2004

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Vol. 123

7-131

EN

The ammonite faunas here described were derived from the Toarcian (Lower Jurassic) and Lower Bajocian (Middle Jurassic) strata of the Pieniny Klippen Belt and the Lower Subtatric Succession, Polish Tatra Mts (West Carpathians). The ammonites belong to the families: Phyllo- ceratidae, Lytoceratidae, Hildoceratidae, Graphoceratidae, Hammatoceratidae, Sonniniidae, Otoiti- dae and Stephanoceratidae. The associated bivalve faunule is represented by the families Inocera- midae and ?Posidoniidae. Stratigraphic evaluation of the ammonite assemblages helped to redefine age ranges of some lithostratigraphic units in the Pieniny Klippen Belt and the Lower Subtatric Succession, Tatra Mts.

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Ammonite-supported microfossil and nannoconid stratigraphy of the Tithonian-Hauterivian limestones in selected sections of the Branisko Succession, Pieniny Klippen Belt (Poland)

Pszczółkowski A., Myczyński R.

Studia Geologica Polonica

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2004

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Vol. 123

133-197

EN

The studied sections of the Tithonian-Hauterivian deposits of the Branisko Succession in the Polish part of the Pieniny Klippen Belt (Figs 1-7) yielded micro-, nanno- and macrofossils, which allowed to elaborate more detailed stratigraphy of these strata, especially in the lowermost Cretaceous interval of the Pieniny Limestone Formation. The calpionellids, radiolarians and other microfossils (mainly calcareous dinoflagellate cysts) were studied in thin sections, whereas the calcareous nannofossils were analysed under SEM. The Berriasian-Hauterivian ammonites are described and illustrated. In the Kapuśnica I section, the Upszar Limestone Member of the Czorsztyn Limestone Formation seems to be exclusively of Tithonian age. At present, the Upper Tithonian deposits of the Crassi- collaria Standard Zone are missing in the studied section. In the Łysonka Klippe, the Lower Berriasian limestones are subdivided on the basis of the Nannoconus assemblages. The ammonites of the Jacobi Zone occur in the limestones of the N. steinmannii steinmannii Zone. In the Kapuśnica I section, the sedimentation rate of the limestones assigned to the Elliptica Subzone was about 1.3 m/Ma. The Oblonga Subzone (sensu lato) coincides with the marly deposition episode in this section; the Łysonka Marl Bed is assigned to the lower interval of this subzone. However, the overall sedimentation rate during the Late Berriasian Oblonga Subzone was low (about ~1.7 m/Ma). Presence of the ammonite Tirnovella otopeta Zone was documented in the Kapuśnica II and Łysonka sections. In the Kapuśnica II section, the minimum value of sedimentation rate of the radiolarian-calpionellid limestones assigned to the Lower Valanginian Calpionellites Zone is about 4.1 m/Ma. The Tintinno- psella Zone of the uppermost Lower Valanginian-Hauterivian is represented by a limestone succe- ssion about 51 m thick. In the Łysonka section, the Upper Valanginian limestones of this zone are probably older than those exposed in the Zaskale section. In the latter section, some ammonites are indicative for the Upper Valanginian Criosarasinella furcillata Zone. In the upper part of the Kapuśnica II section, the limestones of the Tintinnopsella Zone yielded Olcostephanus sp. and Neolissoceras desmoceratoides (Wiedmann) found 4.5 m below the top of this section. These ammonites indicate the Early Hauterivian age of the sparsely fossiliferous limestones. The Upper Hauterivian deposits may be represented in the topmost limestones of the Kapuśnica II section.

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Toarcian ammonites (Adneth facies) from the Subtatris Succession of the Tatra Mts (Western Carpathians)

Myczyński R., Lefeld J.

Studia Geologica Polonica

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2003

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Vol. 121

51-79

EN

Ammonite fauna is described and illustrated from the Kliny Limestone Member (Toarcian-Aalenian - Adneth facies) of the Subtatric Succession in the Tatra Mts. The described forms belong to families Phylloceratidae, Lytoceratidae and Hildoceratidae. The age of the Kliny Limestone Member established on the basis of this fauna is Middle Toarcian-lowermost Aalenian. One form points to Pliensbachian age of the Długa Encrinite Member. Abundance of juvenile ammonite phragmocones has been stated in a horizon of red limestone.

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Bajocian age of the Podzamcze Limestone Formation at Stare Bystre, Pieniny Klippen Belt (Carpathians, Poland) based on its macrofauna

Birkenmajer K., Myczyński R.

Studia Geologica Polonica

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2000

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Vol. 117

49-68

EN

Based on ammonites Eurystomiceras cf. polyhelictum (Böckh, 1881) and Oppelia flexa (Buckman, 1924), bivalves Camptonectes (Camptonectes) cf. laminatus (Sowerby, 1818) and Bositra buchi (Roemer, 1836), and Laevilamellaptychus, gr. A, cf. ceratoides (Ooster), a Lower Bajocian age (upper part) has been determined for the Podzamcze Limestone Formation exposed at Stare Bystre. This is the westernmost occurrence of the Branisko Succession/Nappe in the Pieniny Klippen Belt of Poland.

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Some ammonite genera from the Tithonian of western Cuba and their palaeobiogeographic importance

Myczyński R.

Studia Geologica Polonica

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1999

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Vol. 114

93-112

EN

Ammonites of the genus Hybonoticeras Breistroffer, 1947, described here as: Hybonoticeras (Hybonoticeras) sp. ex. gr. beckeri (Neumayr) and Hybonoticeras (Hybonotella) cf. mundulum striatulum Berckhemer & Hölder, derive from Lower Tithonian deposits of the Sierra de los Organos and Sierra del Rosario belts (Guaniguanico terrane, western Cuba). The presence of the genus Hybonoticeras Breistroffer, 1947, in Cuba, confirms the palaeobiogeographical connections between Spain, Cuba and Mexico during Early Tithonian time, as proposed earlier by the present author. A direct marine connection between Mediterranean Tethys and the proto-Caribbean basin at that time had probably occurred through the “hispanic corridor” sensu Westermann (1984). The taxonomic position of the endemic Cuban genera (Salinites, Protancyloceras - hondense type, Vinalesites, Butticeras, and Paralytohoplites) is specified. These ammonites can be used only for regional correlation, limited to the Gulf of Mexico (Eastern Mexico and Southern part of the United States) and the Caribbean (Cuba). The new data caused modification of local ammonite biozonation.

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Nannoconid assemblages in Upper Hauterivian-Lower Aptian limestones of Cuba: their correlation with ammonites and some planktonic foraminifers

Pszczółkowski A., Myczyński R.

Studia Geologica Polonica

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1999

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Vol. 114

35-75

EN

The nannoconids are abundant in the Lower Cretaceous pelagic limestones in western and central Cuba. In some limestone beds, these nannofossils occur together with ammonites or planktonic foraminifers. Our samples were collected from the Polier, Veloz and Paraiso formations. The Late Hauterivian to Early Aptian age of the studied samples is based mainly on ammonites. The nannoconids identified in these samples are grouped in 4 assemblages: Late Hauterivian, Early Barremian, Late Barremian and late Early Aptian. In the Early Barremian assemblage, the narrow- canal nannoconids are by far more frequent than the wide-canal ones. Small specimens, classified herein provisionally as N. truittii truittii, occur also in this assemblage. On the other hand, the representatives of the Nannoconus steinmannii group are absent in the late Early Aptian assemblage, which includes the wide canal forms only. Nannoconids found in one sample may represent an assemblage of the earliest Aptian age.

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Inoceramids and buchiids in the Tithonian deposits of western Cuba: a possible faunistic link with South-Eastern Pacific

Myczyński R.

Studia Geologica Polonica

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1999

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Vol. 114

77-92

EN

Occurrence of the “Boreal type” bivalves: inoceramids (represented by the genera: Inoceramus Parkinson, 1819; Retroceramus Koshelkina, 1963 and Anopaea Eichwald, 1861) and buchiids (Buchia Rouillier, 1845) in the Tithonian sections of the Sierra de los Organos and Sierra del Rosario belts, western Cuba, is described. Anopaea and other “Boreal” bivalves probably migrated to the Cuban Jurassic basin over the South American shelf and probably throught Southern Mexico. Their occurrence might reflect cooler temperature in the proto-Caribbean basin caused by oceanic currents and/or upwelling, rather than tectonic transport from Southern Boreal province.