Paleozoic World: cratons, shield , platform, mobile belts, Baltica, China, Gondwana, Siberia, Kazakhstania, Laurentia; Cratonic sequences: large scale lithostratigraphic unit representing a major transgressive-regressive sequence bounded by cratonwide unconformities (fig. 21.5), transgression, regression, unconformity, Sauk sequence (latest pC - early Ordovician), overlies "Great Nonconformity", Transcontinental Arch (fig. 21.6), Tippecanoe sequence, (mid-Ordovician - early Dev), very high sea level, first well developed reefs, Michigan Basin , barrier reefs, evaporite minerals, Kaskaskia sequence (late Dev. - early Miss.), black shale, carbonates, Absaroka sequence (late Miss - early Jurassic?), coal, reefs and evaporites,

Tectonics: mobile belts, amalgamation of Pangaea and closing of Iapetus Ocean; Taconic orogeny- (fig. 21.26), subduction zone, mid-Ord, Taconic highlands; Caledonian orogeny, Silurian -early Dev, begin collision of Baltica and Laurentia; Acadian orogeny (fig. 21.27), Devonian, collision, Laurasia; Hercynian-Alleghenian orogeny, Miss-Perm, Gondwana collision from east to west, Southern Appalachians (ancestral Alps); Ouachita-Marathon orogeny (fig. 21.29), Penn-Perm, evaporites; Uralian orogeny, Permian, Siberia, Pangaea, Panthalassa Ocean; Cordillera, Antler orogeny (fig. 21.28), Devonian, accrete Klamath island arc; ancestral Rockies, Pennsylvanian, high angle faults; Sonoma orogeny, Permian-Triassic, another island arc

Explain what a cratonic sequence is and how it forms. Briefly describe the four major cratonic sequences that formed during the Paleozoic (include age, location, unique features)

Describe the sequence of orogenies that culminated in the amalgamation of Pangaea. When did each orogeny occur? Where did each orogeny occur? What caused each orogeny?

Be able to reconstruct the past configuration of plates (real or imaginary) using either technique:

• paleogmagnetic declination and inclination
• seafloor magnetic anomalies