Skip to main content

Main menu

  • Home
  • Articles
    • Current
    • Special Feature Articles - Most Recent
    • Special Features
    • Colloquia
    • Collected Articles
    • PNAS Classics
    • List of Issues
  • Front Matter
    • Front Matter Portal
    • Journal Club
  • News
    • For the Press
    • This Week In PNAS
    • PNAS in the News
  • Podcasts
  • Authors
    • Information for Authors
    • Editorial and Journal Policies
    • Submission Procedures
    • Fees and Licenses
  • Submit
  • Submit
  • About
    • Editorial Board
    • PNAS Staff
    • FAQ
    • Accessibility Statement
    • Rights and Permissions
    • Site Map
  • Contact
  • Journal Club
  • Subscribe
    • Subscription Rates
    • Subscriptions FAQ
    • Open Access
    • Recommend PNAS to Your Librarian

User menu

  • Log in
  • My Cart

Search

  • Advanced search
Home
Home
  • Log in
  • My Cart

Advanced Search

  • Home
  • Articles
    • Current
    • Special Feature Articles - Most Recent
    • Special Features
    • Colloquia
    • Collected Articles
    • PNAS Classics
    • List of Issues
  • Front Matter
    • Front Matter Portal
    • Journal Club
  • News
    • For the Press
    • This Week In PNAS
    • PNAS in the News
  • Podcasts
  • Authors
    • Information for Authors
    • Editorial and Journal Policies
    • Submission Procedures
    • Fees and Licenses
  • Submit

More articles from Paleontology

  • You have access
    A Titanothere from the Type Sespe of California
    Chester Stock
    PNAS November 1, 1938 24 (11) 507-512; https://doi.org/10.1073/pnas.24.11.507
  • You have access
    Preliminary Report on Recent Geological and Archaeological Discoveries Relating to Early Man in Southeast Asia
    H. deTerra
    PNAS October 1, 1938 24 (10) 407-413; https://doi.org/10.1073/pnas.24.10.407
  • You have access
    A Tarsiid Primate and a Mixodectid from the Poway Eocene, California
    Chester Stock
    PNAS July 1, 1938 24 (7) 288-293; https://doi.org/10.1073/pnas.24.7.288
  • You have access
    The Biogeographic Relations of the Orbitoid Foraminifera
    Thomas Wayland Vaughan
    PNAS October 1, 1933 19 (10) 922-938; https://doi.org/10.1073/pnas.19.10.922
  • You have access
    Aristogenesis, the Observed Order of Biomechanical Evolution
    Henry Fairfield Osborn
    PNAS July 1, 1933 19 (7) 699-703; https://doi.org/10.1073/pnas.19.7.699
  • You have access
    Paleozoic Planktonic Faunas of North America
    Rudolf Ruedemann
    PNAS January 1, 1933 19 (1) 157-159; https://doi.org/10.1073/pnas.19.1.157
  • You have access
    Biological Inductions from the Evolution of the Proboscidea
    Henry Fairfield Osborn
    PNAS January 1, 1933 19 (1) 159-163; https://doi.org/10.1073/pnas.19.1.159
  • You have access
    Algal Deposits of Unkar Proterozoic Age in the Grand Canyon, Arizona
    David White
    PNAS July 1, 1928 14 (7) 597-600; https://doi.org/10.1073/pnas.14.7.597
  • You have access
    The Flora of the Hermit Shale in the Grand Canyon, Arizona
    David White
    PNAS August 1, 1927 13 (8) 574-575; https://doi.org/10.1073/pnas.13.8.574
  • You have access
    Foraminifera from the Upper Eocene Deposits of the Coast of Ecuador
    Thomas Wayland Vaughan
    PNAS August 1, 1926 12 (8) 533-535; https://doi.org/10.1073/pnas.12.8.533

Pages

  • 1
  • 2
  • 3
  • 4
  • next ›
  • last »

You May Also be Interested in

Setting sun over a sun-baked dirt landscape
Core Concept: Popular integrated assessment climate policy models have key caveats
Better explicating the strengths and shortcomings of these models will help refine projections and improve transparency in the years ahead.
Image credit: Witsawat.S.
Model of the Amazon forest
News Feature: A sea in the Amazon
Did the Caribbean sweep into the western Amazon millions of years ago, shaping the region’s rich biodiversity?
Image credit: Tacio Cordeiro Bicudo (University of São Paulo, São Paulo, Brazil), Victor Sacek (University of São Paulo, São Paulo, Brazil), and Lucy Reading-Ikkanda (artist).
Syrian archaeological site
Journal Club: In Mesopotamia, early cities may have faltered before climate-driven collapse
Settlements 4,200 years ago may have suffered from overpopulation before drought and lower temperatures ultimately made them unsustainable.
Image credit: Andrea Ricci.
Steamboat Geyser eruption.
Eruption of Steamboat Geyser
Mara Reed and Michael Manga explore why Yellowstone's Steamboat Geyser resumed erupting in 2018.
Listen
Past PodcastsSubscribe
Birds nestling on tree branches
Parent–offspring conflict in songbird fledging
Some songbird parents might improve their own fitness by manipulating their offspring into leaving the nest early, at the cost of fledgling survival, a study finds.
Image credit: Gil Eckrich (photographer).
Site Logo
Powered by HighWire
  • Submit Manuscript
  • Twitter
  • Facebook
  • RSS Feeds
  • Email Alerts

Articles

  • Current Issue
  • Special Feature Articles – Most Recent
  • List of Issues

PNAS Portals

  • Anthropology
  • Chemistry
  • Classics
  • Front Matter
  • Physics
  • Sustainability Science
  • Teaching Resources

Information

  • Authors
  • Editorial Board
  • Reviewers
  • Subscribers
  • Librarians
  • Press
  • Site Map
  • PNAS Updates
  • FAQs
  • Accessibility Statement
  • Rights & Permissions
  • About
  • Contact

Feedback    Privacy/Legal

Copyright © 2021 National Academy of Sciences. Online ISSN 1091-6490