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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]
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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Ohio skies are filled this time of year with hundreds of species of birds flying north for the summer.. The height of the spring migration — known as The Biggest Week in American Birding — is ...
The majority of birds that migrate through Ohio each spring will do so in May. "Then in June, we see the stragglers," Emmert said. Cuckoos are one of the most common species that tend to fly ...
Pages in category "Cephalopods described in 1956" The following 2 pages are in this category, out of 2 total. This list may not reflect recent changes. L.