Integrated biostratigraphy and carbon isotope stratigraphy of the Upper Jurassic shallow water carbonates of the High-Tatric Unit (Mały Giewont area, Western Tatra Mountains, Poland)

Pszczółkowski, Andrzej; Grabowski, Jacek; Wilamowski, A.

doi:10.7306/gq.1333

Cited by 2 publications

(1 citation statement)

References 26 publications

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“…Calcareous dinocysts and Calcitarcha assemblages are relatively common within the Upper Jurassic through Lower Cretaceous deposits from the Tethyan realm of the Carpathians (mostly Tithonian-Albian). They are especially numerous in Western Carpathian settings (e.g., [28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47]).…”

Section: Introductionmentioning

confidence: 99%

Cadosinopsis rehakovii sp. nov., a new calcareous dinocyst from the Jurassic-Cretaceous transitional interval of the Western Tethys

Ciurej

Bąk

2021

PLoS ONE

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Variegated limestones, a transitional series between red, Upper Jurassic radiolarite and whitish, Lower Cretaceous Maiolica limestone in the Pieniny Klippen Belt deposits in the Polish part of the Western Carpathians, have yielded rich microfossil assemblages with common calcareous dinoflagellate resting stages, hereafter, dinocysts. We found an undescribed dinocyst species in red-greenish limestone of a deep water, pelagic habitat in the Branisko succession of the Pieniny Klippen Basin and named it Cadosinopsis rehakovii sp. nov. The new species has a spherical to oval calcareous test ranging from 34 to 59 μm in length and 30 to 50 μm in width, with two layered wall. The inner layer is built of coarse–thick, plate-shaped calcite crystals and is white in transmitted light. The outer layer is built of fibrous crystals, vitreous (transparent) in transmitted light. The aperture is wide and seen only in the inner layer. We compared the detailed morphological characteristics of the new species with another species from the same genus in the Jurassic and Cretaceous Tethyan deposits. Specimens have been measured, grouped and interpreted using cluster analysis, principal component analysis (PCA) and canonical variate analysis (CVA). Among them, the new species shows a resemblance in cross-section to other species of Cadosinopsis, C. nowaki Borza, 1984, and C. andrusovi Scheibner 1967, previously described in literature. However, the two species are easily distinguishable by some features. Cadosinopsis. nowaki is bigger in size (length from 50 to76 μm and width from 43 to 67 μm), its inner layer is thicker and consists of vitreous-sparite calcite, and it has less centrically located chamber. C. andrusovi is much bigger in size as its length ranges from 68 to 108 μm and width ranges from 60 to 80 μm, and the cyst is more oval and its chamber less spherical. The new species is the third Cadosinopsis species described in the Tethyan realm and about two hundred and sixty-first fossil species (morphotype) described in the world so far.

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Section: Introductionmentioning

confidence: 99%

Cadosinopsis rehakovii sp. nov., a new calcareous dinocyst from the Jurassic-Cretaceous transitional interval of the Western Tethys

Ciurej

Bąk

2021

PLoS ONE

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Late Albian calcareous dinocysts and calcitarchs record linked to environmental changes during the final phase of OAE 1d – a case study from the Tatra Mountains, Central Western Carpathians

Ciurej

Bąk

2017

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Late Albian cal car e ous dinocysts and calcitarchs re cord linked to en vi ron men tal changes dur ing the fi nal phase of OAE 1d -a case study from the Tatra Moun tains, Cen tral West ern Carpathians Borza) and Cadosina oraviensis Borza, oc cur spo rad i cally in the as sem blages. Both forms rep re sent the calcitarch group, which as sem bled calcispheres of un known tax o nomic af fin ity. The cal car e ous dinocyst and calcitarch di ver sity is low to mod er ate, com pared to the gen eral spe cies rich ness known from Late Albian as sem blages in other West ern Tethyan sec tions. This is in ter preted as a re sult of nu tri ent in put fluc tu a tions due to changes in the cir cu la tion pat tern of sur face and in ter me di ate wa ters. The changes in the P. sphaerica/P. ovalis ra tio along the Up per Albian sec tion are here cor re lated with short-term (third-or der) sea level fluc tu a tions in clud ing transgressive and re gres sive events and a highstand. Pelletization pro cesses might have influ enced cyst abun dance on the sea floor, es pe cially dur ing pe ri ods with oligotrophic sur face wa ters.Key words: cal car e ous dinocysts, calcitarchs, nu tri ent in put and sea level fluc tu a tions, Up per Albian, OAE 1d, Tatra Mountains.

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Integrated biostratigraphy and carbon isotope stratigraphy of the Upper Jurassic shallow water carbonates of the High-Tatric Unit (Mały Giewont area, Western Tatra Mountains, Poland)

Cited by 2 publications

References 26 publications

Cadosinopsis rehakovii sp. nov., a new calcareous dinocyst from the Jurassic-Cretaceous transitional interval of the Western Tethys

Cadosinopsis rehakovii sp. nov., a new calcareous dinocyst from the Jurassic-Cretaceous transitional interval of the Western Tethys

Late Albian calcareous dinocysts and calcitarchs record linked to environmental changes during the final phase of OAE 1d – a case study from the Tatra Mountains, Central Western Carpathians

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