Dr. John Warren Huntley is an Associate Professor in the Department of Geological Sciences at the University of Missouri. His research examines the fossil record of biotic interactions including parasitism, predation, and competition, with additional focus on conservation paleobiology and morphological disparity evolution. Dr. Huntley investigates host-parasite dynamics in marine bivalves, human impacts on mollusk populations, and Phanerozoic predation patterns. His work integrates stratigraphic paleobiology with ecological and evolutionary analyses to reconstruct historical ecosystem dynamics. His recent publications demonstrate expertise in paleoparasitology, taphonomy, and conservation paleobiology, applying novel analytical methods to questions about parasite-host coevolution, preservation biases, and extinction events. This research provides critical insights into long-term ecological patterns and biological responses to environmental change. Dr. Huntley has received significant recognition including an NSF CAREER Award and Humboldt Research Fellowship, and he co-edited the comprehensive volumes 'The Evolution and Fossil Record of Parasitism'.
Freya Morris is a Visiting Assistant Professor in the Department of Geosciences at Hamilton College, appointed in 2025. Previously, she served as a Visiting Assistant Professor at Whitman College during the 2023-2024 academic year following her Ph.D. defense in summer 2023, and took a gap year for solo global travel. Her research integrates field-based sedimentology and structural geology to reconstruct paleoenvironments and basin evolution, focusing on climate-tectonics interactions and life's evolution through Earth history. Dr. Morris holds a Ph.D. and M.S. from the California Institute of Technology and a B.S. from Lafayette College. She employs geochemical methods and glacial isostatic adjustment modeling to support lithostratigraphic correlations and sea-level history reconstructions during deglaciation events. Her recent publications examine Ediacaran cap carbonates in Namibia and Marinoan Snowball Earth deglaciation dynamics, advancing understanding of ancient climate systems and extreme climate change records. These works demonstrate interdisciplinary approaches combining field geology with quantitative modeling. Scientific Awards: National Science Foundation Graduate Research Fellowship (2017-2022) Supported by the NSF Graduate Research Fellowship during doctoral studies, Dr. Morris now develops her research program at Hamilton College while mentoring undergraduate students in geoscience through field-based courses like Principles of Geoscience: Our Interconnected Earth.
Matthew Wills is Professor of Evolutionary Palaeobiology in the Department of Life Sciences at the University of Bath. He is affiliated with the Milner Centre for Evolution and the Centre for Mathematical Biology, where he leads research into macroevolutionary processes using fossil and molecular data. His work integrates phylogenetics, morphological disparity, and stratigraphic congruence to understand large-scale evolutionary patterns. His research interests focus on the role of fossils in building phylogenies, the evolution of morphological complexity, and the testing of macroevolutionary trends such as early high disparity and increasing complexity. He investigates how developmental shifts underpin major evolutionary transitions and how fossilization biases affect our understanding of the Tree of Life. His lab conducts projects on arthropod supertrees, molluscan ontogeny, and the phylogeny of Eumalacostraca using molecules, morphology, and fossils. His recent publications reveal a strong focus on quantifying morphological complexity, vertebral evolution in mammals, species richness in birds, and the impact of boundaries on trait evolution. These works frequently appear in high-impact journals like Nature Communications and Nature Ecology & Evolution , indicating a trend toward integrative, data-rich evolutionary analyses combining paleontological, morphological, and phylogenomic approaches. Principal Investigator, Biodiversity and The Sixth Mass Extinction (Royal Commission for the Exhibition of 1851) Principal Investigator, Susceptibility to Mass Extinctions: Ammonites as a Case Study (NERC) Principal Investigator, PLUTO Project (BBSRC) Principal Investigator, Arthropod Supertree of Life (BBSRC) He has supervised 17 research students and contributes to public discourse through platforms like The Conversation . His work supports UN Sustainable Development Goals related to life on land and climate action through deep-time biodiversity research.
Alex Liu is a Researcher at the Department of Earth Sciences within the University of Cambridge. He specializes in palaeobiology , focusing on the origin and early evolution of animals, particularly the Ediacaran biota (~579–539 million years ago), and their co-evolution with Earth's environment. Research Focus: Refines understanding of animal body plan evolution, taphonomy, sedimentology, and macroevolutionary trends. Methodologies: Combines fieldwork, experimental studies, petrology, phylogenetics, and big-data analyses. Collaborations: Works with international museums and research teams on fossil sites in Namibia, Canada, and Brazil. Additional Interests: Explores meiofaunal evolution, paleogeography, paleoclimate, and conservation paleobiology. He supervises Cambridge NERC Doctoral Landscape Awards (DLA) projects and welcomes student contributions to taxonomic, paleoecological, and analytical studies.
Professor Jochen J. Brocks is a faculty member at the Research School of Earth Sciences (RSES) at the Australian National University (ANU). He holds a PhD in Organic Geochemistry from the University of Sydney (2002) and a Diplom Chemie (~MSc Chemistry) from the University of Freiburg, Germany. His research focuses on Paleobiogeochemistry, using molecular fossils (biomarkers) to study ancient ecosystems and evolutionary processes, including the origin of life and the emergence of complex organisms. He is particularly interested in the conditions that led to the appearance of multicellular life and the role of primary producers in mass extinctions, as well as the potential existence of a 'lost world' of complex life in Earth's early oceans. He previously served as a Junior Fellow of the Harvard Society of Fellows (2001–2004). His research group, Brocks Geobiology, explores topics such as the molecular signatures of early organisms, the geochemical record of ancient oceans, and the preservation mechanisms of organic matter in sedimentary deposits. Brocks collaborates on projects like the biogeochemistry of salt lakes and the analysis of Precambrian rocks to trace microbial diversity. Education: PhD (Organic Geochemistry, University of Sydney, 2002), MSc (Chemistry, University of Freiburg, Germany). His research interests span the intersection of organic geochemistry and paleontology, with a focus on applying biomarker analysis to understand Earth's history. Recent work includes studies on the environmental aftermath of Snowball Earth glaciations, the origins of Dickinsonia as an early animal, and the preservation of ancient biomolecules in extreme conditions like evaporites and concretions. Brocks has contributed to significant debates in the field, such as reinterpreting steroid biomarkers to challenge early animal evolution timelines and identifying novel preservation mechanisms for plant fossils. His work often integrates experimental geochemistry with field studies, particularly in northern Australia and Mauritania, to explore the co-evolution of life and Earth's systems. Awards: Junior Fellow of the Harvard Society of Fellows (2001–2004). He supervises multiple research projects, including those investigating the Velkerri Formation and the McArthur River deposit. Brocks also collaborates on initiatives like the Sedimentary Geochemistry and Paleoenvironments Project, which synthesizes global data to inform Earth history. His lab work emphasizes the development of analytical techniques to distinguish syngenetic biomarkers from contaminants in ancient samples.
Pierre Bouilhol is a Senior Lecturer (Maître de conférences) at Université de Lorraine, Nancy, France, affiliated with the CRPG-CNRS research unit. His expertise spans petrology, geochemistry, and tectonic processes, with a focus on subduction zones, magmatic systems, and isotope geochemistry. He holds a Doctorat en Sciences (PhD) from ETH Zurich (2005-2008) and a Master in Earth Sciences from Montpellier (2002-2004). His research investigates subduction dynamics, including volatile cycling, serpentinite evolution, and magmatism linked to continental collisions. Notable contributions include studies on Archaean subduction-like magmatism and redox heterogeneities in subducting slabs. Teaching includes courses on petrology, field geology, and magmatic systems at undergraduate and graduate levels. He has held prior positions at MIT (2009-2011), Durham University (2012-2016), and the LMV in Clermont-Ferrand (2016-2017). Recent publications (2021–2025) address topics such as early Earth magmatism, slab devolatilization, and carbonate transfer mechanisms in subduction zones. Collaborations span institutions globally, focusing on fieldwork and experimental petrology. His lab work at CRPG involves advanced geochemical and isotopic analyses, contributing to understanding continental crust formation and mantle processes.
Prof Andrea Manica is a Professor of Evolutionary Ecology and Deputy Head of Department (Research) at the University of Cambridge, Department of Zoology. Her research spans ecological and evolutionary time scales, integrating climate reconstructions, paleontological data, ecological datasets, and genetic information to understand species' responses to environmental change. Research Areas: Population Genetics, Species Distribution Models, Paleoclimate Reconstructions, Human Evolutionary Ecology Key Tools: Development of open-source R packages like tidypopgen and tidygenclust for population genetics and data analysis Focus Taxa: Seabirds (albatrosses, petrels), sharks, turtles, bears, and Homo sapiens Her work addresses questions such as: How do animals adapt movement strategies to changing environments using tracking data? What drives range changes and genetic differentiation in species like leopards and giraffes? How did climatic shifts influence human evolution, migration, and cultural innovations? What computational tools can interrogate large datasets across space and time? Her interdisciplinary approach combines computational models, fieldwork, and collaborations with institutions like the British Antarctic Survey.
Sara Pruss is the Esther Cloudman Dunn Professor of Geosciences at Smith College, where she has established herself as a leading researcher in geobiology and paleontology. Her work focuses on critical transitions in Earth's history, particularly mass extinctions and the evolution of early life forms. She maintains an active research program that combines field work, laboratory analysis, and theoretical approaches to understand the complex interactions between life and Earth's environments through geological time. Education: Ph.D., University of Southern California M.S., University of Southern California B.S., University of Rochester Professor Pruss's research spans several interconnected areas within geobiology and paleontology. Her primary focus is on understanding mass extinction events, particularly the end-Permian extinction and Cambrian-Ordovician transitions. She investigates how these events affected marine ecosystems and the subsequent recovery patterns. Her work on Neoproterozoic carbonates and early animal evolution has provided important insights into the environmental conditions that facilitated the emergence of complex life. Professor Pruss also examines microbial sedimentary structures and their implications for interpreting ancient environments. Her research often combines detailed field observations with geochemical analyses to reconstruct paleoenvironments and understand the taphonomic processes that affect fossil preservation. Analysis of Professor Pruss's recent publications reveals a consistent focus on critical transitions in Earth's history. Her work spans the Ediacaran-Cambrian boundary, the Cambrian-Ordovician transition, and the Permian-Triassic extinction. A recurring theme is the relationship between environmental changes (particularly oxygenation and redox conditions) and biological evolution. Her research increasingly incorporates geochemical proxies like mercury chemostratigraphy to identify potential volcanic triggers for extinction events. The geographical scope of her work is global, with field sites in North America, Scotland, Namibia, and the Arctic. Scientific Awards: Outstanding Contributions to Geobiosciences by the Society for Geobiology and Geomicrobiology (2014) Sherrerd Prize for Distinguished Teaching by Smith College (2015) Professor Pruss has mentored numerous undergraduate students through her research lab at Smith College. Several of her former students, including Katie Castagno, Jana Burke, Kelsey Moore, Sophie Westacott, and Kiara Gomez, have gone on to earn PhDs from prestigious institutions like MIT, Yale, and Woods Hole. Her research has been consistently supported by major funding agencies including the National Science Foundation and the National Geographic Society. Beyond her research mentorship, Professor Pruss has been actively involved in programs aimed at supporting underrepresented women in STEM fields, demonstrating her commitment to inclusive excellence in science education. Professor Pruss leads an active research laboratory at Smith College that combines field, laboratory, and analytical approaches to geobiological research. Her lab has produced numerous publications with undergraduate co-authors, reflecting Smith's strong emphasis on undergraduate research. The lab's work often involves international collaborations with researchers from institutions around the world. Current research directions include investigating the relationship between oxygenation and early animal evolution, studying microbial influences on sedimentary structures, and examining the environmental triggers for major extinction events throughout Earth's history.
Alan Rooney is an Assistant Professor in the Department of Earth & Planetary Sciences at Yale University, affiliated with the Yale School of Arts and Sciences. He leads the Rooney Geochronology and Geochemistry Group, which is part of the Yale Metal Geochemistry Center. His research integrates radiogenic isotope geochemistry (e.g., Re-Os, Sr, Nd) with field-based methods like sedimentology and stratigraphy to investigate tectonic, climatic, and biologic transitions in Earth history. Current projects include refining Neoproterozoic chronology, studying Mid-Pleistocene ice sheet dynamics, and advancing EARTHTIME’s Re-Os geochronometer standards. His research interests are centered on three main areas: 1) Proterozoic tectonics and eukaryotic diversification, 2) ice sheet dynamics over the last 5 million years using multiple geochemical proxies, and 3) radiogenic isotopes as tracers of crustal-mantle processes. He collaborates with researchers at Dartmouth College, Oxford University, and other institutions to address these topics. The Rooney Lab emphasizes experimental approaches, such as simulating seafloor weathering of mafic rocks, to better understand isotopic fluxes into the sedimentary record. His articles highlight a focus on geochronology and isotopic analysis to unravel climate-tectonic interactions, with recent work emphasizing the Great Oxidation Event, Ediacaran biogeochemical shifts, and Mid-Pleistocene glacial variability. These studies often combine field observations with laboratory experiments to deconvolve complex Earth system processes. Dr. Rooney has no listed scientific awards. He advises three graduate students: Gryphen Goss, Sam Shipman, and Carey Ciaburri. The lab’s NSF-funded involvement in EARTHTIME underscores its commitment to advancing geochronological standards. The Rooney Geochronology Lab operates within ultra-clean facilities equipped with advanced mass spectrometers (e.g., Thermo Fisher Neptune-Plus MC-ICP-MS, Triton-Plus TIMS), adjacent to the Microprobe Facility’s electron microprobe resources, enabling precise geochemical and petrological analyses.
Senior Professor Guang R. Shi is a leading academic at the School of Earth, Atmospheric and Life Sciences (SEALS) within the University of Wollongong , Australia. His research spans geology, paleontology, and stratigraphy, with over 25 years of experience. He has conducted extensive fieldwork globally, focusing on marine invertebrate fossils and their paleoecological implications. Research Interests : Palaeontology, Palaeoecology, Stratigraphy, Marine Geoscience, Biostratigraphy, and Paleobiogeography. Funding : Principal Investigator for Australian Research Council (ARC) Discovery Projects on deep-time biodiversity and Permian body size evolution (2023-2026, 2015-2020). Supervision : Actively supervises Doctor of Philosophy candidates in geochronology, sedimentology, and tectonic studies. Publications : Extensive contributions to journals like Nature Geoscience , Earth Science Reviews , and Journal of Paleontology , with recent works on Permian-Triassic CO2 dynamics, marine ecosystem collapses, and brachiopod biogeography.
Erik Sperling is an Associate Professor of Earth and Planetary Sciences at Stanford University, affiliated with the Stanford Doerr School of Sustainability. He is also a Senior Fellow at the Woods Institute for the Environment and holds a courtesy appointment as Associate Professor in the Department of Oceans. His research focuses on Earth’s environmental and biological evolution, particularly the interplay between atmospheric oxygen levels, marine redox conditions, and the emergence of complex life during the Neoproterozoic and Paleozoic eras. Research interests include paleoceanography, geochemical analysis of sedimentary records, early animal evolution, and the biogeochemical drivers of mass extinctions. He integrates fieldwork, laboratory geochemistry, and computational modeling to explore topics such as Ediacaran-Cambrian transitions, the role of oxygenation in metazoan diversification, and modern organismal responses to environmental stressors. His work spans geological time scales, from studying Precambrian shales and stromatolites to analyzing the physiological limits of marine organisms under deoxygenation scenarios. Recent studies emphasize the long-term oxygenation history of oceans, the ecological consequences of hypoxia-temperature interactions, and the application of novel geochemical proxies to reconstruct ancient environments. Laboratory activities include the Sperling Lab, which develops innovative methods for trace element analysis and integrates multi-proxy datasets to address questions in Earth’s history. Collaborations with institutions worldwide focus on global sedimentary geochemical databases and field projects in regions like the Yukon, Brazil, and Australia.
Qing-zhu Yin is a Professor of Geology at the University of California, Davis, specializing in isotope geochemistry and cosmochemistry. His research focuses on using isotopic anomalies in meteorites and planetary materials to study nucleosynthesis, solar system formation, and planetary processes. He is particularly known for analyzing samples from asteroid Ryugu (via the Hayabusa2 mission) to understand water circulation, nucleosynthetic heritage, and compositional links to Earth's building blocks. Key research areas include: Stable and radiogenic isotope systems (e.g., U-Pb, Sr-Nd, Zn, Cr) in meteorites and terrestrial samples. Aqueous alteration processes on asteroids and their implications for early solar system water. Experimental techniques with high-precision mass spectrometry in ultra-clean laboratory conditions. Chronological dating of planetary materials to constrain impact events, volcanic activity, and glacial periods. Recent work highlights contributions to understanding the composition of Ryugu samples, revealing similarities to CI chondrites and insights into s-process nucleosynthesis. He has also investigated the timing of lunar volcanism and the Ediacaran glaciations through isotopic and geochronological methods. Awards include the Meteoritical Society Fellowship (2018) and UC Davis Chancellor’s Fellowship (2011-2012). His research frequently integrates fieldwork, lab experiments, and computational modeling to address fundamental questions about planetary evolution.
Prof Graham Shields is a Professor of Geology at University College London's Department of Earth Sciences. His research focuses on Earth's evolution through geochemical and isotopic analysis, particularly in the Precambrian and Cambrian periods. He investigates how the planet's surface environment co-evolved with life, with a focus on ocean/atmosphere composition during critical junctures like the Sturtian Snowball Earth event and Ediacaran-Cambrian transitions. His work combines field studies in Australia, Spain, and China with analytical techniques such as Rb-Sr dating, multi-isotope analysis, and sedimentary proxy development. Research themes include ocean oxygenation, redox dynamics, and the interplay between glaciation, volcanism, and biological innovations. Applied projects explore geochemical solutions for environmental issues like soil erosion and sustainable resource extraction. He leads the Precambrian Research Group and contributes to initiatives like the Life and the Planet initiative. Publications span Neoproterozoic climate modeling, Ediacaran ocean chemistry, and the geological time scale subdivision. Courses taught include GEOL0008 (Geochemistry).
James Schiffbauer holds the Marie M. & Harry L. Smith Endowed Professorship in Geological Sciences at the University of Missouri, where he directs the X-Ray Microanalysis Laboratory. His research investigates early animal evolution during the Ediacaran-Cambrian transition using paleobiological, geochemical, and advanced microscopy approaches. Education: PhD (Virginia Tech), MS (University of Kansas), BS (University of Nebraska-Lincoln) Research examines taphonomic processes governing soft-tissue fossil preservation, with emphasis on early complex multicellular fossils. Analytical techniques include scanning electron microscopy and synchrotron-based X-ray tomography to resolve biological signals from preservational artifacts. Recent publications explore Ediacaran 'death mask' preservation mechanisms, bilaterian gut evolution in cloudinomorphs, and Cambrian SPICE event biogeochemistry. Earlier work established micro-CT approaches for coprolite analysis and volcanological applications. Awards: Marie M. & Harry L. Smith Endowed Professorship GSA Geobiology Division Pre-Tenure Award MU System President's Award for Early Career Excellence NSF CAREER Award Teaches Environmental Geology, Geochemistry, and specialized courses on taphonomy and the Ediacaran-Cambrian transition. Directs the X-Ray Microanalysis Lab supporting interdisciplinary materials characterization.
Professor Martin Hand is a faculty member at the University of Adelaide, affiliated with the School of Physics, Chemistry and Earth Sciences within the Faculty of Sciences, Engineering and Technology. His research focuses on metamorphic systems, tectonic evolution, and mineral exploration. He leads multidisciplinary teams integrating geology, geochemistry, and geophysics to address topics such as strain localization mechanisms, geothermal gradients, Proterozoic lithosphere evolution, and Fe-oxide Cu-Au mineralization. Key projects include garnet Lu-Hf geochronology, UHT metamorphism studies, and copper exploration in the Gawler Craton. Research Interests: Metamorphic Petrology and Tectonics Geochronology and Thermochronology Proterozoic Continental Evolution Iron-Oxide-Copper-Gold (IOCG) Systems High-Temperature Metamorphic Processes Geothermal Resource Exploration Publications highlight advanced methods in mineral dating (e.g., garnet speed dating, apatite triple dating) and address tectonic frameworks such as subduction dynamics, continental collisions, and supercontinent assembly. His work bridges field observations with lab-based geochemical techniques to decode Earth's crustal history. Eligible to supervise Masters/PhD students in metamorphic geology, tectonics, and mineral systems. Active in international collaborations and has pioneered new geochronological techniques for crustal studies.
