Sökning: "Mellersta kambrium"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Mellersta kambrium.

1. 1. Paleontology and Sedimentology of the Alum Shale Formation at Björnberget, Västerbotten County, Sweden

   Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Mannelqvist Alexander; [2016]
   Nyckelord :Brachiopoda; Acrotretida; New species; New locality; Alum Shale Formation; Brachiopoda; Acrotretida; ny art; ny lokal; Alunskifferformationen;

   Sammanfattning : A new locality of the Alum Shale Formation at Björnberget, Västerbotten County, of the lower allochthon of the Caledonian front is described herein. Two new species of acrotretid brachiopods were found. Tingitanella vilhelminia n. sp. LÄS MER

3. 2. De mellankambriska oelandicuslagren på Öland : stratigrafi och faciestyper

   Kandidat-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Johan Malmgren; [2016]
   Nyckelord :Öland; Sverige; kambrium; trilobiter; Acadoparadoxides oelandicus; Ellipsocephalus polytomus; Earth and Environmental Sciences;

   Sammanfattning : The thesis deals with a drill core retrieved from northern Öland, Sweden, in 2010. The length of the core is c. 107 m and comprises an Ordovician and Cambrian succession. The middle Cambrian primarily consists of fossiliferous mudstone with thin siltstone beds. LÄS MER

4. 3. The first study of the micro-fauna of middle Cambrian olistoliths in the Argentine Precordillera

   Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Elise Fahlgren; Maria Tranvik; [2015]
   Nyckelord :Olistolith; Burgess Shale-type preservation; middle Cambrian; Precordillera; Micropaleontology;

   Sammanfattning : This study implies a survey of a somewhat unexplored Cambrian carbonate formation in the Argentine Precordillera (AP) located in western Argentina, close to the city of San José de Jáchal. The carbonate platform of the AP is a unique piece of the South American geology and is in this study partly surveyed and compared with the Stephen Formation of northern Canada, a middle Cambrian unit renowned for its contents of exceptionally well preserved soft bodied fossils named the Burgess Shale biota. LÄS MER

5. 4. Linguliform Brachiopods from the Middle Cambrian ‘Thick’ Stephen Formation at Odaray Mountain, Canadian Rocky Mountains

   Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Sara Saxén; [2015]
   Nyckelord :Brachiopoda; Lingulida; Middle Cambrian; Stephen Formation; new species; Brachiopoda; Lingulida; Mellersta kambrium; Stephenformationen; ny art;

   Sammanfattning : The linguliform brachiopod fauna from the Stephen Formation have long been thought to be very species poor and only consist of a few genera, but new discoveries from lime-stone beds in the “thick” Stephen Formation shows that this is not the case. The species described herein, Kyrshabaktella cf. tatjanae and Ceratreta hansi sp. nov. LÄS MER

7. 5. Den senkambriska alunskiffern i Västergötland — utbredning, mäktigheter och faciestyper

   Kandidat-uppsats, Lunds universitet/Geologiska institutionen

   Författare :Frans Lundberg; [2012]
   Nyckelord :agnostider; trilobiter; stratigrafi; furongium; kambrium; alunskiffer; orsten; stratigraphy; trilobites; agnostoids; Torbjörntorp Alum shale; Cambrian; Furongian; Torbjörntorp; Västergötland; Earth and Environmental Sciences;

   Sammanfattning : Populärvetenskaplig sammanfattning: Uråldrig skiffer från Västergötland Alunskiffern i Västergötland är cirka 515–485 miljoner år gammal och avsattes under den geologiska åldern furongium (tidigare överkambrium). Denna skiffer kan delas in i olika zoner baserade i vilken höjd i som fossil kan hittas. LÄS MER