arkL edit interval

arkL

select id,columnx from arkL_columns where dataset_id like 91

View/Edit arkL Database interval - Chesterian NAmSt

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The age-window currently being used to search for terms for autocompletion is 273.4 -> 385.5848 Ma.

	interval above:	Morrowan NAmSt
parent-intervals:	this interval:	Chesterian NAmSt	sub-intervals:
	interval below:	Meramecian NAmSt

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Interval data

intervalx:	Chesterian NAmSthas added abv?yesid: 10768 sort:127
alternative_term:	block label:
formal term:
interval_type:
parent_interval:
dataset:	stages North American (Cret & Palaeozoic) (dataset id = 91)
alt dataset:	(dataset id = )
TSC Column:	id:359
stage:
colour:
interval_notes:
compilation_notes:
refs to add:
linked refs:
preset_duration:
preset_duration_notes:
tracecode	; Q2top from event age; Q1base from event age; Q3a duration from base & top

	age2020	age		event	event_id	pup	in interval	age	age2020
Top:		323.4000	<---	base Morrowan NAmSt	11627	0.0000	Bashkirian	323.4	00323.4000
Base:		335.5848	<---	base Chesterian NAmSt	11626	0.0000	lower Gnathodus bilineatus NAMCdontZ	335.5848	00335.5586
base notes	DASH -- Assigned here, following Lane-Brenckle 2005 as base of Ste. Genevieve Lms (base of Gnathodus bilineatus conodont zone). Different publications had different placements: A common former Mississippian lithostrat definition was above SB exposure at top of Ste. Genevieve Lms (base of Cypress), which would fit Davydov'12 projection (base of Venevian Russian regional stage). Davydov (GTS2004, Fig.15.2) had uncertain estimate near base of Russian Mikhalovian regional substage. Ross-Ross'88 show as about 3 myr higher -- lower Venevian, and correlate to uppermost of their E. discoidea-Asteroarchaediscus Foram zone.				comp notes

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