arkL edit interval

arkL

select id,columnx from arkL_columns where dataset_id like 91

View/Edit arkL Database interval - Missourian NAmSt

Navigation

The age-window currently being used to search for terms for autocompletion is 253.68 -> 355.9215 Ma.

	interval above:	Virgilian NAmSt
parent-intervals:	this interval:	Missourian NAmSt	sub-intervals:
	interval below:	Desmoinesian NAmSt

Mode selector

Interval data

intervalx:	Missourian NAmSthas added abv?yesid: 10772 sort:88
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:		303.6800	<---	base Virgilian NAmSt	11631	0.0000	Idiognathodus simulator CdontZ	303.68	00303.6778
Base:		305.9215	<---	base Missourian NAmSt	11630	0.0000		305.9215	00305.9215
base notes	MFS in Exline cycle; which is consistent with Heckel (e-mail of Aug11) assigns as coeval with base of Russian Khamovnikian stage (which Schmitz-Davydov draw as ca. 100-myr cycle higher). Davydov'12 projects as about 80% up in Russian regional Krevyakian (based on cycle-strat?). AGE of GTS08 assigned here is from Heckel et al (2005) cycle-biostrat correlation (MFS of Exline cycle; mid-way between Lost Branch and Hertha) = basal Neverovo cycle in Moscow basin. This projects it just above Conodont zone Pc13 base = 1 myr OLDER than Pf17 version. Davydov (GTS2004) shows base at middle of Kasimovian (base of Russian regional Khamovnichean substage). However, its lowest Fusulinid zone is with T. pygmaeus, which Davydov (1996) implies is coeval with Fusulinid zone Pf17, which is the next higher substage. In sharp contrast, this zone is moved to base of Kasimovian on ExxonMobil '01 column!				comp notes

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

Interval References

Dataset References