3Fossil sites
Belfast Mudstone
Belfast Mudstone in Australia: 3 fossil sites. Typical age: 90–86 million years (Cretaceous).
3Fossil sites
1Finds
90–86 million yearsTypical age
CretaceousMain period
Where its fossils were found
Cretaceous
By geological period
Cretaceous3
What was found
Ammonites · 1Borissjakoceras
Towns with the most fossil sites nearby
Other formations of the same period
Cretaceous
Broome Sandstone 53Eumeralla Formation 52Griman Creek Formation 48Winton 45Toolebuc Formation 44Rintoul Creek Formation 41Miria Formation 41"Wonthaggi" Formation 31Bathurst Island Formation 24Tambo Formation 22Gingin Formation 21Wallumbilla Formation 17Allaru Formation 17Runnymede Formation 12Korojon Calcarenite Formation 11Gearle Siltstone 10Korojon Formation 10Allaru Mudstone 7Bulldog Shale 6Maryborough Formation 6Haycock Marl 6Molecap Greensand Formation 5Bejah Formation 5Moonkinu Formation 4