arkL edit interval

arkL

select id,columnx from arkL_columns where dataset_id like 1

View/Edit arkL Database interval - Wenlock

Navigation

The age-window currently being used to search for terms for autocompletion is 376.7378 -> 482.9326 Ma.

	interval above:	Ludlow
parent-intervals:Silurian;	this interval:	Wenlock	sub-intervals: Sheinwoodian; Homerian;
	interval below:	Llandovery

Mode selector

Interval data

intervalx:	Wenlockhas added abv?id: 14344 sort:122
alternative_term:	block label:
formal term:
interval_type:
parent_interval:
dataset:	chronostratigraphy (dataset id = 1)
alt dataset:	(dataset id = )
TSC Column:	id:78
stage:
colour:	179/225/194
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:		426.7378	<---	base Gorstian	14978	0.0000	Neodiversograptus nilssoni GrZ	426.7378	00426.7378
Base:		432.9326	<---	base Sheinwoodian	14976	0.0000		432.9326	00432.9326
base notes	DOTTED AGE: Imprecise (tied to projected CONOP-Spline fit of current GSSP level to graptolites). Base of Wenlock at GSSP is between the base of acritarch biozone 5 and LAD of conodont Pterospathodus amorphognathoides. The current GSSP does not coincide with the base of the Cyrtograptus centrifugus Biozone, as was supposed when the GSSP was defined. Restudy recommends a slightly higher and correlatable level on conodonts -- the Ireviken datum 2, which coincides approximately with the base of the murchisoni Graptolite Biozone (about 0.1 myr higher). Actual pre-2020 GSSP might correlate to anytime within the lower 3/4ths of the Cyrtogr. murchisoni graptolite zone (Melchin, 29Aug2019 chart)				comp notes

if you were a logged in editor there would be an input button here

Interval References

Dataset References