arkL edit interval

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select id,columnx from arkL_columns where dataset_id like 2

View/Edit arkL Database interval - Perisphinctes bifurcatus TAZ

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The age-window currently being used to search for terms for autocompletion is 106.7876 -> 207.6876 Ma.

	interval above:	Aspidoceras hypselum TAZ
parent-intervals:	this interval:	Perisphinctes bifurcatus TAZ	sub-intervals: Perisphinctes grossouvrei TAsZ; Perisphinctes stenocycloides TAsZ;
	interval below:	Gregoryceras transversarium TAZ

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Interval data

intervalx:	Perisphinctes bifurcatus TAZhas added abv?yesid: 447 sort:94
alternative_term:	P. bifurcatus TAZblock label:
formal term:
interval_type:
parent_interval:
dataset:	ammonites Tethyan (dataset id = 2)
alt dataset:	(dataset id = )
TSC Column:	id:15
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:		156.7876	<---	base Aspidoceras hypselum TAZ	237	0.0000		156.7876	00156.8003
Base:		157.6876	<---	base Perisphinctes bifurcatus TAZ	239	0.0000		157.6876	00157.7003
base notes	Full name of Zone = Perisphinctes (Dichotomoceras) bifurcatus. Full name of subzone = Perisphinctes (Dichotomoceras) stenocycloides.Base = M29r.5 (approx. due to poor data here). Only 1.5 cycles of 100kyr known in lower part of Zone (but subzone limit uncertain). Base is hiatus in Aguilon (At Aguilon, the Stenocycloides Subzone is only about 15% of the Bifurcatus Zone). A total duration for Bifucatus of 0.9 myr is used here, based partly on apparent scaling relative to M-sequence; of which lower 40% is assigned to this subzone.				comp notes

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Interval References

Dataset References