...dominantly limesecreting animals. The notable fossilization of braehiopods, triloliites. mollusks, etc., was impossible until near the beginning of Cambrian...many other parts of the world, may be thus explained. Kozoic limestones, dolomites, magnesian limestones, a.nd calcareous unl magnesian deposits generally...

...of dominantly limesecreting animals. The notable fossili/ation of brachiopods, trilobites, mollusks, etc., was impossible until near the beginning of Cambrian...many other parts of the world, may be thus explained. Eozoic limestones, dolomites, magnesian limestones, and calcareous and magnesian deposits generally...

...transition stage between the Eozoic aeon of dominantly soft-bodied animals and the post-Cambrian a?on of dominantly lime-secreting animals. The notable...established until after the Cambrian period. The striking rarity or entire lack of organic remains in thick Cambrian sediments of British Columbia, Alberta,...

...transition stage between the Eozoic aKin of dominantly soft-bodied animals and the post-Cambrian seon of dominantly lime-secreting animals. The notable...fossilization of brachiopods, trilobites, molluscs, etc., wag impossible until near the beginning of Cambrian time. Indeed, the conditions for truly abundant...