Sökning: "brachiopods"
Visar resultat 1 - 5 av 15 uppsatser innehållade ordet brachiopods.
1. Estimating the Early Evolution of Brachiopods Using an Integrated Approach Combining Genomics and Fossils
Master-uppsats, Uppsala universitet/PaleobiologiSammanfattning : The Brachiopoda, a major group of the Lophotrochozoa, experienced a rapid early evolutionary diversification during the well-known Cambrian explosion and subsequently dominated the Palaeozoic benthos with its diversity and abundance. Even though the phylogeny of the Lophotrochozoa is still hotly debated, it is now known that the Brachiopoda are a monophyletic grouping. LÄS MER
2. Paleontology and Sedimentology of the Alum Shale Formation at Björnberget, Västerbotten County, Sweden
Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : 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. De mellankambriska oelandicuslagren på Öland : stratigrafi och faciestyper
Kandidat-uppsats, Lunds universitet/Geologiska institutionenSammanfattning : 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. Linguliform Brachiopods from the Middle Cambrian ‘Thick’ Stephen Formation at Odaray Mountain, Canadian Rocky Mountains
Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : 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
5. Upper Cretaceous coprolites from the Münster Basin (northwestern Germany) : a glimpse into the diet of extinct animals
Master-uppsats, Lunds universitet/Geologiska institutionenSammanfattning : En omfattande samling koproliter från tre lokaler med sediment från sen kritatid i Münsterbassängen (nordvästra Tyskland) har studerats med en mängd olika analytiska tekniker med avsikten att belysa urtida trofiska nivåer och relationen mellan rovdjur och bytesdjur. Den fosfatiska sammansättningen, inneslutningar av benmaterial, storlek och form tyder på att de flesta eller samtliga koproliter producerades av rovlevande vertebrater. LÄS MER