1 / 7

The Fossil Record and Adaptive Radiation

The Fossil Record and Adaptive Radiation. by Stefan Tassoulas Zach Herbst Caleb Jarriel Holden Lee Lambros Tassoulas. Introduction. Discovery of arthropods in amber droplets Inclusions from 230 mya (Schmidt et al. 2012) Amber from the Late Triassic

sebastian-camacho
Télécharger la présentation

The Fossil Record and Adaptive Radiation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Fossil Record and Adaptive Radiation by Stefan Tassoulas Zach Herbst Caleb Jarriel Holden Lee Lambros Tassoulas

  2. Introduction • Discovery of arthropods in amber droplets • Inclusions from 230 mya (Schmidt et al. 2012) • Amber from the Late Triassic • Fossil record and adaptive radiation • Stratigraphy

  3. Data and Results • Worldwide amber deposition • 70,000 triassic amber droplets were examined (Schmidt et al. 2012) • 3 species of arthropods found

  4. Stratigraphy Analysis

  5. Discussion • 100 Ma before flowering plants appeared • Pegs conifer feeding as an ancestral trait • Eriophyidae group: adaptive radiation • 3500 species • Special body plan

  6. Conclusion • Three possible explanations for Carnian amber anomaly • Changes in sedimentation patterns • Increased resin production • Both factors together • Arthropod fossils in amber • Fossil record indicates adaptive radiation

  7. Literature Cited Schmidt, Alexander R., Saskia Jancke, and Evert E. Lindquist. "Arthropods in Amber from the Triassic Period." Proceedings of the National Academy of Sciences of the United States of America 109.37 (2012): 14796-4801. Print. Georg-August-Universität Göttingen. Courant Research Centre Geobiology. Discovery of the Earliest Arthropods Preserved in Amber. Georg-August-Universität Göttingen. N.p., 31 Aug. 2012. Web. 9 Sept. 2012. <http://www.uni-goettingen.de/en/3240.html?cid=4267>. Shanks, John. "230-Million-Year-Old Fly and Mites Found Preserved in Amber." Sci-news.com. Sci-News.com, 27 Aug. 2012. Web. 9 Sept. 2012. <http://www.sci-news.com/paleontology/article00551.html>.

More Related