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Ammonites and stratigraphy of the Kirnmeridgian at Wimanfjellet, Sassenfjorden, Spitsbergen

100%

Wierzbowski A.

Acta Palaeontologica Polonica

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1989

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tom 34

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nr 4

Five Kimmeridgian ammonite faunas occurring at well separated horizons have been recognized in the Janusfjellet Fm., at Wimanfjellet in Sassenfjorden. Together with other ammonite faunas described so far from the Kimmeridgian in Spitsbergen they are arranged into the faunistic sequence, and their correlations with the best known Arctic successions viz. in the East Greenland (Milne Land) and the northern Siberia (Kheta Basin) are discussed. The ammonites of Spitsbergen belong mostly to the family Cardioceratidae which indicates the affiliation of the area to the restricted Boreal Province. However, the faunas corresponding to the Rasenia cymodoce Zone (except its lowermost part) and the Aulacostephanoides mutabilis Zone show in Spitsbergen a marked increase in number of the Subboreal representatives of the Aulacostephanidae. The appearance of aulacostephanids of the Subboreal affinities reflects the faunal invasion from the south.

2

Ammonites and stratigraphy of the Bathonian and Callovian at Janusfjellet and Wimanfjellet, Sassenfjorden, Spitsbergen

63%

Kopik J., Wierzbowski A.

Acta Palaeontologica Polonica

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1988

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tom 33

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nr 2

Three ammonite faunas in the lower part of the Janusfjellet Fm., in the southern Sassenfjorden area have been recognized. The first fauna is correlated with the Stephanoides (= Fasciculatus Subzone) of the Cranocephaloides Zone Upper Bathonian, the second one — with the Calyx Zone of the uppermost Bathonian, and probably also with the Apertum Zone of the lowermost Callovian, and the third one — with the upper part of the Middle Callovian and/or the lower part of the Upper Callovian. The co-occurrence of Cardioceratidae and Kosmoceratidae in the Upper Bathonian in Spitsbergen is indicative of the Subboreal province, whereas the presence of Cardioceratidae and the absence of Kosmoceratidae found in the Middle/Upper Callovian characterize the Boreal province. Thus, within the Boreal Realm the boundaries of the Boreal and the Subboreal provinces shifted through the Spitsbergen area during the Early/Middle Callovian time. In the paleontological part are described the representatives of Kepplerites (subgenera: Seymourites, Toricellites), Costacadoceras, Cadoceras (Paracadoceras), Stenocadoceras, Pseudocadoceras and ?Longaeviceras; a new species, Kepplerites (Toricellites) blrkelundae Kopik, has been established.

3

The Jurassic juvenile ammonites of the Jagua Formation, Cuba

63%

Kulicki C., Wierzbowski A.

Acta Palaeontologica Polonica

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1983

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tom 28

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nr 3-4

Early ontogenetic stages of some Ammonitina (mostly Perisphinctidae) are described from the Oxfordian Jagua Formation of western Cuba. Fourty six percent of the sample are specimens attaining the nepionic swelling with more than four septa developed. Juvenile jaw apparatus found for the first time in specimens with only 2,25 whorls, displays primitive elements corresponding to conchorhynch and rhyncholit of nautiloids, litoceratids and phylloceratids. The fauna and sediment features evidence a low water energy and low oxigenated conditions at the bottom during the sedimentation. The juvenile ammonites occur together with numerous adults which are represented by corresponding micro- and macroconchs; it indicates for the proximity of a breeding place.

4

Paleocene clastic dyke at Janusfjellet, Spitsbergen

63%

Wierzbowski A., Ziembinska-Tworzydlo M.

Polish Polar Research

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1984

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tom 05

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nr 3-4

5

Some Holothurian sclerites from the Polish Jurassic

63%

Garbowska J., Wierzbowski A.

Acta Palaeontologica Polonica

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1967

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tom 12

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nr 3

6

The ammonite succession in the Callovian, Oxfordian and Kimmeridgian of the Czorsztyn Limestone Formation, at Halka Klippe, Pieniny Klippen Belt, Carpathians

63%

Myczynski R., Wierzbowski A.

Bulletin of the Polish Academy of Sciences. Earth Sciences

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1994

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tom 42

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nr 3

7

Rewitalizacja kamieniołomu skał jurajskich w Wieluniu w celu wykorzystania jego walorów geologicznych, geoturystycznych i rekreacyjnych

51%

Antczak J., Krzeczynska M., Wierzbowski A., Wozniak P.

Prace Komisji Krajobrazu Kulturowego PTG

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2014

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nr 26

8

Fauna and stratigraphy of the Uppermost Triassic and the Toarcian and Aalenian deposits in Sassenfjorden, Spitsbergen

51%

Wierzbowski A., Kulicki C., Pugaczewska H.

Acta Palaeontologica Polonica

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1981

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tom 26

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nr 3-4

9

O bledach w szkoleniu kierowcow

50%

Wierzbowski A.

Oświata Rolnicza

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1996

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tom 02

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nr 2

30-34

10

Rynkowi krajowemu zagraza import wieprzowiny

50%

Wierzbowski A.

Mięso

|

2002

|

nr 04

31

11

Klopoty na rynku miesa wieprzowego i wolowego

50%

Wierzbowski A.

Trzoda Chlewna

|

2002

|

tom 40

|

nr 06

107

12

Wirtualna Gielda Towarowa

50%

Wierzbowski A.

Mięso

|

2003

|

nr 05-06

38-39

13

Import wieprzowiny zagrozeniem dla rynku krajowego

50%

Wierzbowski A.

Mięso

|

2002

|

nr 01

14

Co z zapasami ARR?

44%

Wierzbowski A.

Mięso

|

2002

|

nr 06

12

15

Early Cretaceous ammonites and dinoflagellates from the Western Tatra Mountains, Poland

39%

Vasicek Z., Blazejowski B., Gazdzicki A., Krol M., Lefeld J., Skupien P., Wierzbowski A.

Acta Palaeontologica Polonica

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2020

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tom 65

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nr 4

Ograniczanie wyników

Ammonites and stratigraphy of the Kirnmeridgian at Wimanfjellet, Sassenfjorden, Spitsbergen

Ammonites and stratigraphy of the Bathonian and Callovian at Janusfjellet and Wimanfjellet, Sassenfjorden, Spitsbergen

The Jurassic juvenile ammonites of the Jagua Formation, Cuba

Paleocene clastic dyke at Janusfjellet, Spitsbergen

Some Holothurian sclerites from the Polish Jurassic

The ammonite succession in the Callovian, Oxfordian and Kimmeridgian of the Czorsztyn Limestone Formation, at Halka Klippe, Pieniny Klippen Belt, Carpathians

Rewitalizacja kamieniołomu skał jurajskich w Wieluniu w celu wykorzystania jego walorów geologicznych, geoturystycznych i rekreacyjnych

Fauna and stratigraphy of the Uppermost Triassic and the Toarcian and Aalenian deposits in Sassenfjorden, Spitsbergen

O bledach w szkoleniu kierowcow

Rynkowi krajowemu zagraza import wieprzowiny

Klopoty na rynku miesa wieprzowego i wolowego

Wirtualna Gielda Towarowa

Import wieprzowiny zagrozeniem dla rynku krajowego

Co z zapasami ARR?

Early Cretaceous ammonites and dinoflagellates from the Western Tatra Mountains, Poland