arkL edit interval

arkL

select id,columnx from arkL_columns where dataset_id like 88

View/Edit arkL Database interval - 3A NAMCdontZ

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The age-window currently being used to search for terms for autocompletion is 300.9198 -> 401.758 Ma.

	interval above:	3B NAMCdontZ
parent-intervals:	this interval:	3A NAMCdontZ	sub-intervals:
	interval below:	2 NAMCdontZ

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Interval data

intervalx:	3A NAMCdontZhas added abv?yesid: 11624 sort:318
alternative_term:	block label:
formal term:
interval_type:
parent_interval:
dataset:	conodonts NAm (dataset id = 88)
alt dataset:	(dataset id = )
TSC Column:	id:245
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:		350.9198	<---	FADNAm Pseudopolygnathus multistriatus	12060	0.0000		350.9198	00350.9200
Base:		351.7580	<---	FADNAm Polygnathus communis carinus	12059	0.0000	upper Gnathodus typicus CdontZ	351.758	00351.7580
base notes	Base of Fern Glen/Meppen Lms, which Brenckle (pers. commun., 2006) estimates as base of Foram Zone Mf7; therefore same as Conodont Zone Mc6 base. Previously, the Base 3A is same level as FAD of P. cummis communis at base-3A was assumed to imply same base as Polygnathus communis (Mc7) zone of Davydov GTS2004. But, that caused a squeeze for zones 3A through 6 (assigned equal durations for now), into a small interval (the Burlington Lms unit); but would be consistent with apparently no Foram divisions within that Burlington. Could imply a MAJOR hiatus in region. From GTS2020 spline sheet - DASHED (GTS2020; Aretz 25Mar'19 chart) as 40% up between base S. isosticha and and base-G. texanus				comp notes

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Interval References

Dataset References

Aretz, M., Herbig, H. -G. & Wang, X. D. (2020). Chapter 23 - The Carboniferous Period. In, Gradstein, F. M. , Ogg, J. G. , Schmitz, M. D. , and Ogg, G. M. (ed.) The Geologic Time Scale 2020. Elsevier, Boston, MA 2: 811-874. gs

Barrick, J. E., et al. (2013). Midcontinent Pennsylvanian conodont zonation. Stratigraphy. 10: 55-72. gs

Lane, H. R. & Brenckle, P. L. (2005). Type Mississippian subdivisions and biostratigraphic succession. In, Heckel, P. H. (ed.) Stratigraphy and Biostratigraphy of the Mississippian Subsystem (Carboniferous System) in Its Type Region, the Mississippi River Valley of Illinois, Missouri, and Iowa International Union of Geological Sciences Subcommission on Carboniferous Stratigraphy Guidebook for Field Conference, St. Louis, Missouri, September 8-13, 2001. Illinois State Geological Survey, Handbook . 34: 76-98. gs