Clonograptus
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1![]() | Graptolites (Lower Ordovician –Lower Devonian) Order Graptoloidea Graptolites (see figures below) are the remains of extinct marine animals that floated about in the early to middle Paleozoic seas. Individual animalsAdd to Reading ListSource URL: www.geology.arkansas.govLanguage: English - Date: 2014-01-10 11:01:48 |