Solenomorpha Moriensis
''Solenomorpha'' is an extinct genus of bivalve molluscs that lived from the Late Ordovician to the Late Triassic in Australia, Europe, and North America. References ''Solenomorpha''
in the Paleobiology Database * ''Fossils'' (Smithsonian Handbooks) by David Ward (Page 112) Prehistoric bivalve genera Ordovician bivalves Silurian bivalves Devonian bivalves Carboniferous bivalves Permian bivalves Triassic bivalves Prehistoric invertebrates of Oceania Prehistoric animals of Europe Prehistoric bivalves of North America Late Ordovician first appearances Late Triassic extinctions Taxa named by Theodore Dru Alison Cockerell {{paleo-bivalve-stub ...
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Late Ordovician
The Late Ordovician is the third and final epoch of the Ordovician period, lasting million years and spanning from around 458.2 to 443.1 million years ago. The rocks associated with this epoch are referred to as the Upper Ordovician Series. At this time, Western and Central Europe and North America collided to form Laurentia, while glaciers built up in Gondwana, which was positioned over the South Pole. This caused a drop in global temperatures, resulting in "ice house" conditions. For most of this time, life continued to flourish, but at and near the end of the period, there were mass-extinction events that seriously affected planktonic forms like conodonts, graptolites, and some groups of trilobites ( Agnostida and Pytchopariida, which completely died out, and the Asaphida which were much reduced). Brachiopods, bryozoans and echinoderms were also heavily affected, and the endocerid cephalopods died out completely, except for possible rare Silurian The Silurian ( ...
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