Essays about: "cambrian"

Showing result 1 - 5 of 32 essays containing the word cambrian.

1. 1. Kinematic Enrolment in Four Ordovician Trilobites Using Three-Dimensional Modelling

   University essay from Uppsala universitet/Paleobiologi

   Author : Alejandro Corrales Garcia; [2023]
   Keywords : 3D modelling; Blender; Dysplanus centrotus; enrolment kinematics; Gyrometopus lineatus; Illaenus sarsi; Ordovician; trilobites; Trilobiter; Enrollering; 3D-modellering; Blender; Modelos 3D; Blender; cinematica; enrollamiento; Ordovicico; trilobites;

   Abstract : Trilobites were a successful group of marine arthropods that thrived for much of the Palaeozoic Era. Akey innovation of trilobites involved the capacity to enrol their biomineralized exoskeletons for protection; a trait that appeared early in their evolutionary history during the Cambrian Period. READ MORE

3. 2. The Origins and Ecology of Early Paleozoic Spreiten Ichnofossils: Comparisons of Daedalus and Syringomorpha with Alectorurus

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Zane Goodell; [2023]
   Keywords : trace fossils; ichnology; Cambrian; Daedalus desglandi; Alectorurus circinatus; Syringomorpha nilssoni; the agronomic revolution;

   Abstract : The Cambrian explosion not only shaped the ecosystems of the Phanerozoic, but fundamentally changed how biota interacts with the environment, including the substrate. Cambrian trace fossils Alectorurus and Syringomorpha as well as Ordovician-Silurian Daedalus represent novel modes of faunal interaction with the newly innovated shallow marine mixed-ground and have surprisingly limited stratigraphic ranges. READ MORE

4. 3. The evolutionary origins of consciousness

   University essay from Högskolan i Skövde/Institutionen för biovetenskap

   Author : Azadeh Karamali; [2023]
   Keywords : Phenomenal consciousness; evolutionary origin; animal consciousness; sentience;

   Abstract : Some unanswered questions about consciousness as a biological phenomenon lie in its evolutionary origin and distribution among living organisms. Which animals are conscious and when did consciousness appear in the history of life on earth? The purpose of this thesis is to shed light on these long-standing questions by reviewing the literature on the evolutionary approaches to the fundamental concept of phenomenal consciousness. READ MORE

5. 4. Parapeytoia yunnanensis: The organism that connects the upper stem-group euarthropods

   University essay from Uppsala universitet/Paleobiologi

   Author : Sebastian Axel Cockfield Larsson; [2023]
   Keywords : ;

   Abstract : The study of euarthropod evolution in the Cambrian is challenging due to controversies surrounding the identification of various anatomical features. Radiodontans are supported to be a monophyletic group to the lower stem of euarthropods. READ MORE

6. 5. Polymerized Tubular Silicates in Lower Cambrian Carbonates – Biology or Chemistry?

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Scott Green; [2022]
   Keywords : biosignature; tubular structures; Lower Cambrian; silica precipitation; bifurcating; biosignatur; rörstrukturer; Kambrium Serie 3; kiseldioxid utfällning; förgrening;

   Abstract : Shallow marine environments from the Lower Cambrian period were very different to shallow marine environments of today. Tubes of what was thought to be silica recovered from a partly dolomitized carbonate sample collected form a site near Indian Springs, Nevada could help further understand the chemistry and characteristics of such environments. READ MORE