Jean Guex, Section des Sciences de la Terre, Université de Lausanne Switzerland: The Bio Graph software. Bio Graph is a program, designed to aid the biochronological correlation of species by constructing concurrent range zones using a mathematical model. Lith Strat (supported by the Österreichische Akademie der Wissenschaften). Go to: Richtlinien zur stratigraphischen Nomenklatur. A guide about stratigraphical nomenclature (in German). Wolfgang Oschmann, Geologisch-Paläontologisches Institut, Frankfurt a. M.: Phasen der Evolution des Systems Erde: Es gibt keinen Stillstand (in German). (2015): The Fossil Calibration Database, A New Resource for Divergence Dating.

Cloudsley-Thompson (2005): Ecology and Behaviour of Mesozoic Reptiles, The Mesozoic Environment. See also here, Entrance Software, Houston, TX: BSLS Online 1.0.

P David Polly, Department of Geological Sciences, Indiana University, Bloomington, IN: Historical Geology.

Avila, Department of Geological Sciences, University of Texas, El Paso: The Science of Historical Geology.

A library of talks on earth sciences and evolutionary topics that may be of interest to earth sciences and education professionals as a basis for engagement and outreach shows in schools.

Go to: Stratigraphy (Historical geology, History of the Earth, Epochs, Eras, Time zone, Sequence stratigraphy). Net aims to provide free and open access to geoscientific information and data with special emphasis on the disciplines stratigraphy, paleontology and sedimentology. The International Commission on Stratigraphy (ICS). Go to: Global Boundary Stratotype Sections and Points. Klimetz, Science Department, John Dewey High School, Brooklyn, NY: Web Resource for Students and Teachers. Hartmut Seyfried, Institut für Geologie und Paläontologie, University of Stuttgart, Germany: Online lectures on Sequence stratigraphy Lecture outlines. Using a combination of linked text, images and short movies, this page is designed to help users gain an instant understanding of the principles of sequence stratigraphy. University of South Carolina Sequence Stratigraphy Web (see also here): Sequence Stratigraphy Terminology.

A link directory (introductory website slow loading), comprising over 70 individual web pages. Koutsoukos (2007): Stratigraphy: Evolution of a Concept. The central stratigraphic classification and dates are based on the 2004 time scale endorsed by the International Commission on Stratigraphy (ICS) and documented in Gradstein, Ogg, Smith, et al., A Geologic Time Scale 2004. Geolex is a search tool for lithologic and geochronologic unit names. Virgili (2008): The Permian-Triassic transition: Historical review of the most important ecological crises with special emphasis on the Iberian Peninsula and Western-Central Europe.

This project aims to reconcile the international stratigraphic standards with many of the regional and archaic naming schemes that appear in the literature.

Geo When Database is an attempt to sort out the mess that man has made of the geologic timescale.

Wood, Department of Geological & Mining Engineering and Sciences, Michigan Technological University, Houghton: Earth History. Perhaps the best way to work through this online guide is to start with accommodation and to continue down the list of topics from there. Department of Geological Sciences, University of South Carolina, Columbia, SC: USC Sequence Stratigraphy Web. Mulholland, Thomasson Partner Associates, Denver, Colorado: Sequence stratigraphy: basic elements, concepts, and terminology. Using a combination of linked text, images and short movies, this page is designed to help users gain an instant understanding of the principles of sequence stratigraphy. Hartmut Seyfried, Institut für Geologie und Paläontologie, University of Stuttgart, Germany: Online-Course Stratigraphy. Using a combination of linked text, images, and short movies this page is designed to help users gain an instant understanding of the principles of sequence stratigraphy.