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Its relatively conserved body plan provides insight into the early diversification of brachyuran crabs during the Cretaceous period
Archaeocyaths were the world’s first reef-building animals
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a family of ammonites that first appeared during the Early Cretaceous and persisted until the Cretaceous–Palaeogene Extinction Event approximately 66 million years ago
Australian fossil ammonite ("Myloceras ammonoide") By Karen Corkill Its relatively conserved body planMyloceras ammonoides (Millstone Horn Ammonite) is an extinct marine cephalopod from Australias Cretaceous inland seas. This species is dated to approximately 100113 million years ago (Cretaceous) and is known from the Allaru Formation, Currane Station, Ilfracombe, Central West Queensland. The specimen represents a nektonic mollusc that swam within the warm shallow waters of the Eromanga Sea system. Originally described by Dr Frederick W Whitehouse in
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