Sökning: "Marine amniotes"

Hittade 2 uppsatser innehållade orden Marine amniotes.

1. 1. Diversity and Ecology of a Middle Campanian (Late Cretaceous) Marine Reptile Assemblage from Skåne, Southern Sweden

   Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Lena Källsten; [2015]
   Nyckelord :Landmark morphometrics; Marine amniotes; Cretaceous; Mosasauridae; Plesiosauridae; Aigialosuchus; Landmärkesbaserad morfometri; marina amnioter; Kritaperioden; Mosasauridae; Plesiosauridae; Aigialosuchus;

   Sammanfattning : This study has looked at an assemblage of fossilised teeth from Mesozoic marine amniotes from the Kristianstad basin in southern Sweden in order to make an estimate of the ecomorph diversity within said assemblage through looking at the morphology of the teeth. This was done as a pilot study to see if further studies would be able to produce worthwhile results. LÄS MER

3. 2. Testing the Cretaceous Diversity of Ichthyosaurs and Their Extinction Hypotheses Using a Quantitative Approach

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Naz Acikkol; [2015]
   Nyckelord :diversity; ichthyosaurs; extinction; belemnites; ammonites; prey; predator; rock record; sampling bias; Cretaceous; mångfald; utdöende; fisködlor; belemniter; rovdjur; byte;

   Sammanfattning : As portrayed in Before the Dinosaur: the Historical Significance of the Fossil Marine Reptiles, ichthyosaurs, as other Mesozoic marine amniotes, have been unfairly overshadowed by dinosaurs in both popular culture and the field of vertebrate palaeontology. Yet by the effort of dedicated researchers, work on these fish-like marine reptiles had never died out, and in fact a second wave of interest emerged in the late 20th century. LÄS MER