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所在平台: Coursera |
课程主页: https://www.coursera.org/learn/early-vertebrate-evolution
课程评论：没有评论
课程名称：古生物学：早期脊椎动物演化 课程概述：本课程为四节课，全面介绍脊椎动物的起源。学生将探索古生代谱系的多样性，并在系统发育和演化框架内进行学习。课程内容涵盖了脊椎动物主要新特征的演变，包括鳍、颚以及四足肢的起源。同时，学生还将探讨加拿大的关键化石遗址，包括不列颠哥伦比亚省的伯吉斯页岩、魁北克的米古阿沙以及西北地区的“山上的人”。 课程大纲： 1. **生命的开始**：回溯显生宙的起源，了解脊椎动物及其近亲的关键解剖特征，介绍系统发育语言，并进行沉积学的快速入门。 2. **学习游泳**：通过比较不同动物，如牛和甲壳类，学习基本脊椎动物解剖学及其特征，深入了解无颌脊椎动物的多样性。 3. **学习咬合**：探讨早期脊椎动物的多样性和颌的演化，重点关注大灭绝事件对脊椎动物生活的影响，并介绍著名的捕食者如敦克尔斯图斯。 4. **学习行走**：分析骨鱼类的特征，探索水生脊椎动物与陆生脊椎动物的不同，研究腿鳍鱼如何演变为四足动物，揭示早期陆生动物的起源。 该课程为对古生物学和脊椎动物演化感兴趣的学生提供了深入且系统的研究机会。
Name:The Phanerozoic Begins
Description:In this lesson we take you back to the beginning of the Phanerozoic Eon to learn what it truly means to have backbone, as we encounter the key anatomical features of vertebrates and their closest chordate relatives. We’ll also introduce the language of evolution – phylogenetics – as we examine some of the contenders for the title of ‘The Earliest Vertebrate’, and give you a crash course in sedimentology, so you can begin to piece together the spectacular environments that were home to our early aquatic ancestors. Just a quick note before you get started: 'Palaios' is the Greek word for 'ancient', so palaeontology or paleontology is the study of ancient life. Both spellings are correct, with palaeontology used in Britain, and paleontology more common in the US.
Name:Learning to Swim
Description:The old problem of the comparative anatomist was exactly how to compare two animals that appeared, at first glance, to look nothing alike. How, do you compare cows and lobsters? Well, in this lesson you’ll not only learn how to compare crustaceans and cattle, but you’ll also quickly learn that there’s more to a vertebrate than just a backbone as we delve into basic vertebrate anatomy. We’ll cover all the need-to-know anatomical terms and directions, as well as specialist features like the lateral line system, which not only helped early fish avoid predation, but is also the main reason why you find it very difficult to catch fish with your bare hands today! We will also explore the immense diversity of the jawless vertebrates including the tenacious Cyclostomata, the elusive Conodonta, and, long before Ankylosaurus, a group of heavily armoured jawless fishes – the ostracoderms.
Name:Learning to Bite
Description:The Ordovician, Silurian and Devonian Periods were times of great continental, oceanic and climactic change that brought about the Earth’s first mass extinction events. With environmental catastrophes opening up new ecological niches, a trait evolved in early vertebrates that would prove so successful that over 99% of modern vertebrates still retain it: jaws. In this lesson we will try to understand the geographical and temporal background of early vertebrate diversity, as well as the impact and origin of the evolution of jaws on vertebrate life. Introducing huge predators such as Dunkleosteus along the way, we’ll explore the incredible diversity of the Gnathostoma (the jawed fishes), mainly from fossils known from the spectacular Late Devonian site of Miguasha in Quebec. So get ready for a lesson you can really sink your teeth into!
Name:Learning to Walk
Description:Although this lesson marks the end of the beginning of the vertebrate story, we still have some bones left to pick! In this last lesson we’ll look at the features of the Osteichthyes (the bony fishes) and examine the differences between two immensely successful vertebrate groups; one that conquered the water: the Actinopterygii (ray-finned fishes), and one that eventually conquered the land: the Sarcopterygii (lobe-finned fishes). We’ll investigate how the sarcopterygians gave rise to the tetrapods, meet our very first tetrapod ancestors like Acanthostega, and introduce the features that were essential in making the leap from water to land. Along the way we’ll meet some living fossils, see some incredible evolutionary adaptations, and learn about our earliest terrestrial origins – it’s time to step up and finish the tale of ‘Early Vertebrate Evolution’!
Paleontology: Early Vertebrate Evolution is a four-lesson course teaching a comprehensive overview of the origin of vertebrates. Students will explore the diversity of Palaeozoic lineages within a phylogenetic and evolutionary framework. This course examines the evolution of major vertebrate novelties including the origin of fins, jaws, and tetrapod limbs. Students also explore key Canadian fossil localities, including the Burgess Shale (British Columbia), Miguasha (Quebec), and Man On The Hill (Northwest Territories). Watch a preview of the course here: https://uofa.ualberta.ca/courses/paleontology-vertebrate-evolution
