Sökning: "palaeohistology"

Hittade 2 uppsatser innehållade ordet palaeohistology.

1. 1. An Analysis of Growth and Aging in a Tyrannosaurus rex through Histology and Synchrotron Micro-Tomography

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Xanthe Sifra Bijl; [2019]
   Nyckelord :Tyrannosaurus rex; palaeohistology; skeletochronology; synchrotron micro-tomography; Tyrannosaurus rex; palaeohistologie; skeletochronologie; synchrotron mikro-tomographie;

   Sammanfattning : Size comparisons, skeletochronological, and palaeohistological studies have been major contributors in the past decades to expand our knowledge on how dinosaurs, including Tyrannosaurus rex, lived and grew. Historically, size comparisons have been used to establish a relative order of age, and thin sections have been used to study the palaeohistology and skeletochronology, as well as establish growth curves, to construct more quantifiable age determinants. LÄS MER

3. 2. A Multi-Evidence Approach to the Affinity of Tylodus deltoides Rohon 1893

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Thomas Claybourn; [2015]
   Nyckelord :3D virtual palaeohistology; evolution; Silurian; Gnathostomata; Holocephali; Ohesaare; 3D-virtuell paleohistologi; evolution; Silur; Gnathostomata; Holocephali; Ohesaare;

   Sammanfattning : Early gnathostome evolution has recently undergone revision due to newly published phylogenies. Within this new framework, early gnathostomes in the fossil record can be revised, particularly the subject of this paper Tylodus deltoides (Rohon, 1893), vertebrate microremains from the Silurian Ohesaare Formation of Estonia. LÄS MER