The fossil record from it is dominated by trilobites, and this period of the Paleozoic Era was followed by the Ordovician Period.
The duplication of Hox genes may explain a notable event during this time period, whose major landmasses include Laurentia, Baltica, and Gondwona. Archaeocyathids both appeared and went extinct during this period, and the Ediacara organisms appear to have gone extinct early in this first period of the (*) Phanerozoic Eon. The fossil record from it is dominated by trilobites, and this period of the Paleozoic Era was followed by the Ordovician Period. For 10 points, name this geological period which saw the proliferation of many new species of life, an event known as its namesake "explosion."
The duplication of Hox genes may explain a notable event during this time period, whose major landmasses include Laurentia, Baltica, and Gondwona.
{Cambrian} Period