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The marine life of Ohio included crinoids, snails, cephalopods, brachiopods, and fishes. Trilobites were also present, but their fossils are rare. [4] By the Permian period the sea had left completely. Local bodies of water were then lakes and rivers rather than saltwater. [3] Southeastern Ohio was a swamp-covered coastal plain. [4]
The cephalopods have a long geological history, with the first nautiloids found in late Cambrian strata. [1]The class developed during the middle Cambrian, and underwent pulses of diversification during the Ordovician period [2] to become diverse and dominant in the Paleozoic and Mesozoic seas.
Cephalopods are thought to be unable to live in fresh water due to multiple biochemical constraints, and in their >400 million year existence have never ventured into fully freshwater habitats. [10] Cephalopods occupy most of the depth of the ocean, from the abyssal plains to the sea surface, and have also been found in the hadal zone. [11]
This category covers articles about cephalopods as individual species or groups. For more information, see cephalopod . Pages in this category should be moved to subcategories where applicable.
Ohio may only be a tiny blip on the map for some of them, like the blackpoll warbler — these tiny creatures fly nearly 2,000 miles every spring, from Argentina to Canada.
There are several birding locations inland at places like the Arc of Appalachia Preserves in Southern Ohio, Hocking Hills State Park in Southeastern Ohio and Mohican State Park in North Central Ohio.
Cephalopods of North America — a primarily prehistoric class of Molluscs in North America. With some extant/surviving Holocene/present day species. Subcategories.
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