Science Working Groups
Domain scientists are directly involved in the development of CHRONOS, the community-based data network for Earth history. The role of the science working groups is one of collaboration with CHRONOS IT team and specifically to: (1) help design and review specific aspects of database schemas, metadata categories, and visualization and computational tools; (2) serve as experts to answer queries from IT specialists; and (3) enlist community support for populating and using CHRONOS. If you would like to share your expertise and contribute to CHRONOS, please contact directly the appropriate discipline coordinators listed below or Cinzia Cervato.
Geochemical Cycles/Paleogeochemistry
Coordinators: Ethan Grossman, Texas A and M University, and John McArthur, University College London
| Organization Scheme | ||
| Material | System | Participants |
| 1.Whole sediment and sedimentary rock | C, N, O, S and Sr isotopes | Michael Joachimski, Rob Ripperdan, Matt Saltzman, Graham Shields, Tracy Frank |
| 2.Whole sediment and sedimentary rock | Os, He, other[?] isotopes | Bernhard Peucker-Ehrenbrink |
| 3.Carbonate microfossils | B, C, and O isotopes | Jim Zachos, Mimi Katz*, Ellen Thomas |
| 4.Siliceous microfossils | Ge/Si; O and Si isotopes | |
| 5.Carbonate macrofossils | B, C, and O isotopes | Michael Joachimski, Ethan Grossman, Linda Ivany* |
| 6.Microfossils and macrofossils | x/Ca and y/CO3 | Yair Rosenthal, Bas van de Schootbrugge |
| 7.Microfossils and macrofossils | Heavy isotopes (Ca, Fe, Sr, Pb, etc.) | John McArthur, Isabel Montanez |
| 8.Sulfate minerals and carbonate-associated sulfate | O, S, Sr isotopes; S content | Adina Paytan, Harald Strauss, Tim Lyons |
| 9.Phosphates | O, C, Sr, Nd isotopes, etc. | Debbie Thomas, Michael Joachimski |
| 10.Sedimentary organic matter | H, C, O isotopes, etc. | Kate Freeman, Michael Engel |
| 11.Soil carbonates and oxides | C, O, S, Sr isotopes, etc. | Huiming Bao, Harald Strauss, Claudia Mora, Isabel Montanez, Luis Gonzalez |
| 12.Paleo pCO2 | stomatal indices, geochemical models, etc. | Dana Royer*, Isabel Montanez |
| *Post meeting additions |
Paleobiology and Biostratigraphy
Coordinators: Vladimir Davydov, Boise State University; Brian Huber, Smithsonian Institution, and Mark Leckie, University of Massachusetts, Amherst
Benthic foraminifera
| Felix Gradstein | ![]() |
University of Oslo, Natural History Museum |
| Miriam Katz | ![]() |
Rutgers University, Piscataway NJ |
| Ellen Thomas | ![]() |
Wesleyan University |
Brachiopods
| Guang Shi | ![]() |
Deakin University, Australia |
Calcareous Nannoplankton
| Paul R. Bown | ![]() |
University College London |
| Timothy Bralower | ![]() |
Penn State University |
| Michael Knappertsbusch | ![]() |
Natural History Museum, Basel, Switzerland |
Cephalopods
| Yuri Zakharov | ![]() |
Far Eastern Geological Institute, Vladivostok, Russia |
Conodonts
| Charles Henderson | ![]() |
University of Calgary, Canada |
| Heinz Kozur | ![]() |
Budapest, Hungary |
| Mike Orchard | ![]() |
Geological Survey of Canada |
| Bruce Wardlaw | ![]() |
USGS, Reston VA |
Diatoms
| John Barron | ![]() |
USGS, Menlo Park CA |
| Dave Harwood | ![]() |
University of Nebraska, Lincoln |
Fusulinids
| Vladimir Davydov | ![]() |
Boise State University |
| John Groves | ![]() |
University of Northern Iowa |
Mesozoic Planktonic Foraminifera
| Mark Leckie | ![]() |
University of Massachusetts |
| Brian Huber | ![]() |
Smithsonian Institute |
| Ahuva Almogi-Labin | ![]() |
Geological Survey of Israel, Jerusalem |
| Atushi Ando | Smithsonian Institute | |
| Michele Caron | ![]() |
University of Fribourg, Switzerland |
| Rodolfo Coccioni | University of Urbino, Italy | |
| Dan Georgescu | University of Bucarest, Rumania | |
| Malcolm Hart | ||
| Eduardo Koutsoukos | ||
| Maria Rose Petrizzo | ||
| Isabella Premoli Silva | University of Milan, Italy | |
| Silvia Spezzaferri | ![]() |
University of Fribourg, Switzerland |
| Natasha Tur | ||
| Davide Verga |
Radiolarians
| Dave Lazarus | ![]() |
Humboldt Museum, Berlin, Germany |
Vertebrates
| Spencer Lucas | ![]() |
New Mexico Museum of Natural History |
PaleoGeography
Coordinator: Dietmar Mueller, University of Sydney



