Essays about: "stem tetrapods"

Found 3 essays containing the words stem tetrapods.

1. 1. Late Devonian vertebrates from Siberia: a synchrotron microtomography study of bone bed material

   University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

   Author : Étienne Fortier-Dubois; [2016]
   Keywords : Siberia; Late Devonian; Megistolepis; paleontology; microtomography; vertebrates; synchrotron; stem tetrapods; fossil;

   Abstract : This is an investigation of new vertebrate fossil material from the Late Devonian locality of Ivanovka, Uryup River, Siberia. This bone bed material, circa 375 million years in age, represents a unique opportunity to fill a gap in our understanding of Late Devonian diversity, biogeography, and vertebrate evolution: Siberia, at the time, was an independent continent, and yet its fauna remains virtually unknown in comparison with the other paleocontinents, Euramerica and Gondwana. READ MORE

3. 2. Evaluation of Zinc Oxide Nano-Microtetrapods for Biomolecule Sensing Applications

   University essay from KTH/Funktionella material, FNM

   Author : Wei Zhao; [2015]
   Keywords : zinc oxide tetrapods; nano-microstructure; glucose oxidase; glucose sensor;

   Abstract : Zinc oxide (ZnO) is a well-known II-VI semiconductor material that has gained renewed interest in the past decade due to the developments of growth technologies and the availability of high-quality ZnO bulk single crystals. Owing to a wide direct band gap (3. READ MORE

4. 3. Squamation in Andreolepis from the late Silurian of Sweden

   University essay from Evolution och utvecklingsbiologi; Institutionen för biologisk grundutbildning

   Author : Donglei Chen; [2010]
   Keywords : ;

   Abstract : The origin of osteichthyans (bony fishes and tetrapods) dates back to the Late Silurian, but theearly evolution of osteichthyans is poorly understood. Andreolepis is one of the oldest knownosteichthyans, but exclusively documented by detached and fragmented dermal microremains. READ MORE