arkL edit interval

arkL

select id,columnx from arkL_columns where dataset_id like 1

View/Edit arkL Database interval - Late Toarcian

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The age-window currently being used to search for terms for autocompletion is 124.7 -> 229.8244 Ma.

	interval above:	Early Aalenian
parent-intervals:Toarcian;	this interval:	Late Toarcian	sub-intervals:
	interval below:	Early Toarcian

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Interval data

intervalx:	Late Toarcianhas added abv?id: 31 sort:310
alternative_term:	block label:Lt
formal term:
interval_type:
parent_interval:
dataset:	chronostratigraphy (dataset id = 1)
alt dataset:	(dataset id = )
TSC Column:	id:92
stage:
colour:	153/206/227
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:		174.7000	<---	base Aalenian	626	0.0000	Leioceras opalinum TAZ	174.7	00174.7000
Base:		179.8244	<---	base Late Toarcian	627	0.0000	Haugia variabilis TAZ	179.8244	00179.8243
base notes	DASH -- Late Toarcian substage boundary not standardized. Base of the Haugia variabilis ammonite zone is used here. But an alternate three-substage division (e.g., Groupe Français d’Étude du Jurassique, 1997) groups the Haugia variabilis and underlying Hildoceras bifrons zones into a Middle Toarcian, and places the limit of an Upper Toarcian at the base of the Grammoceras thouarsense Zone.				comp notes

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Interval References

Dataset References