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2019-12-17 13:08:28.0 [tstevens] Insert Concept
add broader relation (SERIES 2 [c98a4c91-1b1d-464d-8380-497a186db7eb,532299] - CAMBRIAN
[167bba30-03d3-4898-8c53-6e50828d1749,505123]);
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2019-12-17 13:13:33.0 [tstevens] Insert Concept
add narrower relation (SERIES 2 [c98a4c91-1b1d-464d-8380-497a186db7eb,532299] - STAGE
4 [81103299-c23d-4a11-9a04-c1041fea5d1b,532331]);
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2019-12-17 13:13:45.0 [tstevens] Insert Concept
add narrower relation (SERIES 2 [c98a4c91-1b1d-464d-8380-497a186db7eb,532299] - STAGE
3 [16e234b5-5ecb-4e03-b4ec-7a5e03db8017,532335]);
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2019-12-17 14:38:06.0 [tstevens]
insert Definition (id: null
text: Cambrian Series 2 is the unnamed 2nd series of the Cambrian. It lies above the
Terreneuvian series and below the Miaolingian. Series 2 has not been formally defined
by the International Commission on Stratigraphy, lacking a precise lower boundary
and subdivision into stages. The proposed lower boundary is the first appearance of
trilobites which is estimated to be around 521 million years ago.
language code: en);
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