arkL edit interval

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select id,columnx from arkL_columns where dataset_id like 81

View/Edit arkL Database interval - Quadralella polygnathiformis TRCdontZ

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The age-window currently being used to search for terms for autocompletion is 185.05 -> 287 Ma.

	interval above:	Mazzaella carnica TRCdontZ
parent-intervals:	this interval:	Quadralella polygnathiformis TRCdontZ	sub-intervals:
	interval below:	Budurovignathus diebeli TRCdontZ

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Interval data

intervalx:	Quadralella polygnathiformis TRCdontZhas added abv?yesid: 7980 sort:119
alternative_term:	Q. polygnathiformis TRCdontZblock label:
formal term:
interval_type:
parent_interval:
dataset:	conodonts (dataset id = 81)
alt dataset:	(dataset id = )
TSC Column:	id:235
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:		235.0500	<---	base Mazzaella carnica TRCdontZ	9553	0.5000	Trachyceras aonoides TAZ	235.05	00235.0500
Base:		237.0000	<---	FAD Paragondolella intermedia, Quadralella polygnathiformis	9559	0.0000	Daxatina canadensis TAZ	237	00237.0000
base notes	Base of Tethayn Quadralella (or Paragondolla) polygnathiformis zone had been at Carnian base "FO of the conodont Paragondolella polygnathiformis, suggested as a secondary marker to recognize the base of the Carnian" (Rigo et al., 2018). [Note -- Orchard Nov’19 email to J.Ogg: "I assign Paragondolella praelindae and P. polygnathiformis to Quadralella (Orchard, 2019)). Ssame as base of Meta. intermedius in Orchard, 2010 (renamed Paragondolla intermedia in Orchard Oct’19 chart to J.Ogg) = Base of D. canadiensis (new base of Carnian) = Orchard’s new zone (2007) and Kozur’s. Genus keeps changing -- was appreviated as "G.(Paragondolella)" for genera in SEPM chart; but Metapolygnathus is genus given in zonal scale for GTS2004 (following Orchard), but Kuzur’03 gives as Paragondolella. Kozur’03 also assigns base of this zone as coeval with base of Daxatina canadiensis or Frankites sutherlandi ammonite zone (his preferred base of Carnian); but also shows base of a N.Amer. Meta. polygnathiformis zone as same level. Orchard (in Lehrmann et al., 2015) indicates base is just a bit before base of Carnian				comp notes

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Interval References

Dataset References