Marine researchers determined that another deep-sea coral colony in Hawaiithis one a black coral Leiopathes spwas about 4265 years old. A fringing reef is one of the three main types of coral reefIt is distinguished from the other main types barrier reefs and atolls in that it has either an entirely shallow backreef zone or none at allIf a fringing reef grows directly from the shoreline then the reef flat extends to the beach and there is no backreef.
Basic Information About Coral Reefs Us Epa
Due to the continuous regeneration of new polyps some deep-sea coral reefs have been actively growing for as long as 40000 years.
. Paleozoic 541-252 million years ago means ancient life The oldest animals on Earth appeared just before the start of this era in the Ediacaran Period but scientists had not yet discovered them when the geologic timescale was made. Life was primitive during the Paleozoic and included many invertebrates animals without backbones and the earliest fish and amphibians. These coral colonies are the oldest marine organisms on record.
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