Project News

IGCP 653 @ Seattle GSA

Hello IGCP 653-ers,
We have a strong lineup of over 30 presentations in sessions sponsored by our project at the upcoming Geological Society of America meeting.  Please be sure to join us if you are attending the meeting in Seattle.
Our primary session “The onset of the Great Ordovician Biodiversification Event (GOBE): Testing hypotheses with diverse data sets” will convened by Alycia Stigall and Rebecca Freeman on Monday afternoon.
Please also join us Sunday afternoon for “Life and Times in the Early Paleozoic” convened by Erik Sperling, Stephen Leslie, and Matt Saltzman, Steve Leslie.  Information about that session is here:
We look forward to vibrant discussions and exciting new science in Seattle!
IGCP 653 co-organizers

Morocco 2018: Workshop and Fezouata field excursion

A regional workshop and field excursion of IGCP 653: The Onset of the Great Ordovician Biodiversification Event will be organized at Marrakech, February 12-16, 2018.


February 12-13, 2018, an IGCP 653 workshop at Marrakech University, similar to the workshop that took place at Nanjing, May 15-16, 2017 (link), will be organized for students from Morocco, but all Moroccan scientists and participants from IGCP 653 are welcome. 

After the workshop, a three-day field trip is organized February 14-16, with geological excursions to some of the classic sections of the Lower Ordovician Fezouata Fossil-Lagerstätte, allowing participants to observe the geological context of the exceptional Fezouata Biota.

Download the First Circular here.  Further information will be available at on the IGCP 653 project website.

Please indicate your interest in attending either the workshop or the excursion by sending an e-mail message to and Space for the excursion is limited, and we apply a ‘first come first serve’ basis.

We look forward to welcoming you to Marrakech.

Thomas Servais
on behalf of the organizing committee and Project 653 co-leaders

2018 Annual Meeting: First Circular

The third annual meeting of IGCP 653: The Onset of the Great Ordovician Biodiversification Event will be hosted on the campus of Ohio University in Athens, Ohio, June 3-7, 2018.

The scientific sessions in Athens include a mid-conference field trip and will be preceded and followed by geological excursions to classic sections ranging from Cambrian through Katian in age, allowing participants to observe sedimentological, biological, and ecological changes across the GOBE and the resulting ecosystems.

We welcome contributions on all aspects of the late Cambrian through Ordovician earth system.

Download the First Circular.  The meeting website is

Please indicate your interests by filling in the following the form below and send to

Download fillable PDF form: click here

We look forward to welcoming you to Ohio.  GO BE in Ohio!

Alycia Stigall
on behalf of the organizing committee and Project 653 co-leaders

Abstract deadline for IGCP 653 Annual meeting approaching

The early registration and abstract deadline for the Annual meeting in Yichang, China is August 15, only two weeks away!  
Register here:

The organizers are planning a scientifically exciting and productive meeting.  We hope that you will be able to join us!

Funding is available through the IGCP program to provide partial travel support for students and scientists from developing nations participating in the Annual meeting.  To to apply for support, email Project Leader Thomas Servais ( .

More information here:
Second circular
IGCP 653 project website

We hope to see you in Yichang in October!

GSA deadline approaching and publications update

Dear IGCP 653 members,

The deadline is quickly approaching for submitting an abstract to the  “The onset of the Great Ordovician Biodiversity Event (GOBE): Testing Hypotheses with Diverse Data Sets” session at upcoming 2017 Geological Society of America conference in Seattle, Washington. Abstract submission is open now and will close on August 1st.  For more information about the GSA meeting visit:

There are many other session at GSA that will be of interest to this group, and we hope to see you there!

In other news, the first papers from the Lethaia special volume stemming from the Durham meeting are now available in Early View.  A list of IGCP 653 related publications is maintained on our website here:

We are eager to document all papers related to the project. Please make Alycia Stigall ( aware of any IGCP 653 related papers you publish so she can keep the list updated.  We encourage all members to identify related work as part of this project in the acknowledgements section using the sentence “This paper is a contribution to the International Geoscience Programme (IGCP) Project 653 – The onset of the Great Ordovician Biodiversification Event.

Best wishes,
IGCP co-leaders

Second circular for Annual IGCP meeting in Yichang, China

The second annual meeting of the International Geoscience Programme Project 653 “Filling the gap between Cambrian Explosion and the GOBE” will be held in Yichang, China from October 8 through 18, 2017.


The second circular is now available with details of registration, abstract submission, publication venue, field trip itineraries, travel and accommodations, and visa information.
Key dates:
  • August 15, 2017: Deadline for submitting abstracts or extended summary through the web of the Yichang meeting ( or to the e-mail box of the meeting (
  • September 15, 2017: Distribution of Third (last) Circular
  • October 8, 2017: Icebreaker of the meeting
  • October 13, 2017: Start of the post-conference field excursion
  • December 31, 2017: Deadline for submitting proceeding paper to Palaeoworld
Contact information
Any questions or suggestions related to the meeting and field trips should be directed to the e-mail box of the meeting:
or if necessary, to:Dr. FAN Junxuan (Nanjing Institute of Geology and Palaeontology):

Dr. ZHANG Yuandong (Nanjing Institute of Geology and Palaeontology):

For further and updated information of the Yichang meeting, please visit the website of the meeting: