The goniatite, a chubby, free-swimming cephalopod about the size of a baseball, contrived to stay in business as a species for some 140 million years over four distinct geological epochs until it went ...

RECENTLY it has been discovered that rich and often excellently preserved radiolarian faunas are commonly associated with Namurian goniatites. Pulfrey1 described small radiolaria-containing nodules ...

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