arkL edit interval

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select id,columnx from arkL_columns where dataset_id like 26

View/Edit arkL Database interval - Meishucunian SChSt

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The age-window currently being used to search for terms for autocompletion is 471 -> 580.715 Ma.

	interval above:	Nangaoan SChSt
parent-intervals:Diandongian SChSer;	this interval:	Meishucunian SChSt	sub-intervals:
	interval below:	Jinningian SChSt

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Interval data

intervalx:	Meishucunian SChSthas added abv?yesid: 15769 sort:58
alternative_term:	block label:
formal term:
interval_type:
parent_interval:
dataset:	stages South China (Jur -> Camb) (dataset id = 26)
alt dataset:	(dataset id = )
TSC Column:	id:167
stage:
colour:
interval_notes:
compilation_notes:
refs to add:
linked refs:
preset_duration:
preset_duration_notes:
tracecode	; Q1base from event age; Q2top from event age; Q3a duration from base & top

	age2020	age		event	event_id	pup	in interval	age	age2020
Top:		521.0000	<---	base Nangaoan SChSt	16079	0.0000	Tsunyidiscus niutitangensis TrZ	521	00521.0000
Base:		530.7150	<---	base Meishucunian SChSt	16078	0.8250	Fortunian	530.715	00530.7150
base notes	Base of Siphogonuchites triangularis - Paragloborilus subglobosus Zone -- From Peng, 2003: 'The Meishucunian, as revised by Luo et al. (1994), is restricted to the upper part of the original Meishucunian.., i. e., the succession above the “China B” horizon, which marks the base of small shelly fossil Zone 2, the Paraglaborilus-Siphogonuchites Zone. ... The lower boundary is defined by the first appearance of the hyolithid Paragloborilus subglobosus (Fig. 2A).' HOWEVER: 'The best estimated age for the base of the Meishucunian Stage (China Marker B) is 530.25 based on U-Pb age for the bed 5 of the Meishucun section (Bowring, pers. comm. To Shanchi Peng; relayed to Jim Ogg in Nov07)'; therefore, projects to middle of S.triangularis-P.subglobosus zone?? (I just put 7/8ths up in Fortunian Stage here, pending resolution of this offset by S.Peng).				comp notes

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Dataset References