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Australian Museum Research Reveals Iron-Rich Fossil Site Challenges Paleontology Search Methods

cultural-heritage · 2026-03-15

Researchers from the Australian Museum Research Institute have documented McGraths Flat, a fossil site in New South Wales, Australia, dating to the Miocene epoch 11-16 million years ago. The site features exceptionally preserved fossils in iron-rich sedimentary rock called ferricrete, capturing detailed soft tissues from ancient rainforest ecosystems. This discovery challenges traditional assumptions that well-preserved fossils only occur in shale or sandstone formations, offering new guidelines for locating similar terrestrial fossil sites globally.

Key facts

  • McGraths Flat is an iron-rich fossil site in New South Wales, Australia
  • Fossils date to the Miocene epoch, 11-16 million years old
  • Preservation includes soft tissues like pigment cells and internal organs
  • Site formation involved iron precipitation in ancient river systems
  • Research provides new criteria for finding similar fossil locations

Entities

Institutions

Locations

  • New South Wales
  • Australia

Sources