arkL edit interval

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select id,columnx from arkL_columns where dataset_id like 24

View/Edit arkL Database interval - [ Olson's Gap ] LandVertZ

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The age-window currently being used to search for terms for autocompletion is 219.21 -> 325.263 Ma.

	interval above:	Kapteinskraalian LandVertZ
parent-intervals:	this interval:	[ Olson's Gap ] LandVertZ	sub-intervals:
	interval below:	Littlecrotonian LandVertZ

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Interval data

intervalx:	[ Olson's Gap ] LandVertZhas added abv?yesid: 13722 sort:110
alternative_term:	block label:
formal term:
interval_type:
parent_interval:
dataset:	Vert - Fish and Reptile faunachrons (dataset id = 24)
alt dataset:	(dataset id = )
TSC Column:	id:287
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:		269.2100	<---	FAD Therapsid-domimated (initial taxa = Eodicynodon)	13418	0.0000	Wordian	269.21	00269.2100
Base:		275.2630	<---	LAD Pelycosaur-dominated	13417	0.9000	Kungurian	275.263	00275.2630
base notes	DOTTED -- No large tetrapod record in USA Roadian (Base of Roadian ICS Stage; but 'traditional' Roadian spanned uppermost Kungurian and lower half of ICS Roadian => put here as 90% up in Kungurian) or Russia Ufmian (Lucas, 2004, 2013). End of 'classic' sail-backed Early Permian pelycosaur reptiles: 'Olson’s gap is also an evolutionary break between two substantially different global tetrapod faunas. Thus, it is marked by a dramatic remodelling of the Permian tetrapod fauna, from pelycosaur dominated to therapsid dominated.' (Lucas, 2006)				comp notes

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Interval References

Dataset References

Lucas, S. G. (2009a). Global Jurassic tetrapod biochronology. Volumina Jurassica. 6: 99-108. gs

Lucas, S. G. (2010b). The Triassic timescale based on nonmarine tetrapod biostratigraphy and biochronology. In, Lucas, S. G. (ed.) The Triassic Timescale. Geological Society of London, Special Publications . 334: 17-39. gs

Lucas, S. G., Sullivan, R. M. & Spielmann, J. A. (2012a). Cretaceous vertebrate biochronology, North American Western Interior. Journal of Stratigraphy. 36(2): 426-461. gs