View source for 59:0 The Marine-Life Era on Urantia

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59:0.1 We reckon the [[history]] of [[Urantia]] as beginning about one billion years ago and extending through five major eras:

*1. 59:0.2 ''[http://nordan.daynal.org/wiki/index.php?title=Paper_57 The prelife era]'' extends over the initial four hundred and fifty million years, from about the [[time]] the [[planet]] [[attained]] its present size to the time of life establishment. Your students have designated this period as the [http://en.wikipedia.org/wiki/Archeozoic Archeozoic].
*2. 59:0.3 ''[http://nordan.daynal.org/wiki/index.php?title=Paper_58 The life-dawn era]'' extends over the next one hundred and fifty million years. This [[epoch]] intervenes between the preceding prelife or [[cataclysmic]] age and the following period of more highly [[developed]] [[marine]] life. This era is known to your researchers as the [http://en.wikipedia.org/wiki/Proterozoic Proterozoic].
*3. 59:0.4 ''[http://nordan.daynal.org/wiki/index.php?title=Paper_59 The marine-life era]'' covers the next two hundred and fifty million years and is best known to you as the [http://en.wikipedia.org/wiki/Paleozoic Paleozoic].
*4. 59:0.5 ''[http://nordan.daynal.org/wiki/index.php?title=Paper_60 The early land-life era]'' extends over the next one hundred million years and is known as the [http://en.wikipedia.org/wiki/Mesozoic Mesozoic].
*5. 59:0.6 ''[http://nordan.daynal.org/wiki/index.php?title=Paper_61 The mammalian era]'' occupies the last fifty million years. This recent-times era is known as the [http://en.wikipedia.org/wiki/Cenozoic Cenozoic].

59:0.7 The ''[[marine]]-life era'' thus covers about one quarter of your [[planetary]] [[history]]. It may be subdivided into six long periods, each characterized by certain well-defined [[developments]] in both the [[geologic]] realms and the [[biologic]] [[domains]].

59:0.8 As this era begins, the sea bottoms, the extensive [http://en.wikipedia.org/wiki/Continental_shelves continental shelves], and the numerous shallow near-shore basins are covered with prolific [[Plants|vegetation]]. The more [[simple]] and [[primitive]] [[forms]] of [[animal]] life have already [[developed]] from preceding [[vegetable]] [[organisms]], and the early [[animal]] [[organisms]] have [[gradually]] made their way along the extensive coast lines of the various [[land]] masses until the many inland seas are teeming with [[primitive]] [[marine]] life. Since so few of these early [[organisms]] had shells, not many have been preserved as [[fossils]]. Nevertheless the [[stage]] is set for the opening chapters of that great "[http://nordan.daynal.org/wiki/index.php?title=Paper_58#58:7._THE_GEOLOGIC_HISTORY_BOOK stone book]" of the [http://en.wikipedia.org/wiki/Geologic_record life-record] preservation which was so [[methodically]] laid down during the succeeding ages.

59:0.9 The continent of [http://en.wikipedia.org/wiki/North_America North America] is [[wonderfully]] rich in the [[fossil]]-bearing deposits of the entire [[marine]]-life era. The very first and oldest layers are separated from the later [http://en.wikipedia.org/wiki/Stratigraphy strata] of the preceding period by extensive erosion deposits which clearly [[segregate]] these [[two]] [[stages]] of [[planetary]] [[development]].

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[[Category:Paper 60 - Urantia During Early Land-Life Era]]