show/hide search details 
======== GET (form) values ========
Array
(
    [SortResultsBy] => DATE_ADDED_DESC
    [SimpleSearch] => 
    [HiddenFilters] => Array
        (
            [0] => FilterByTipTaxa
            [1] => FilterByAge
            [2] => FilterByGeologicalTime
        )

    [BlockedFilters] => Array
        (
            [0] => FilterByTipTaxa
        )

    [TaxonA] => 
    [TaxonB] => 
    [FilterByClade] => Acari
    [MinAge] => 
    [MaxAge] => 
    [FilterByGeologicalTime] => 
)
	
======== $search object ========
Array
(
    [SimpleSearch] => 
    [FilterByTipTaxa] => Array
        (
            [TaxonA] => 
            [TaxonB] => 
        )

    [FilterByClade] => Acari
    [FilterByAge] => Array
        (
            [MinAge] => 
            [MaxAge] => 
        )

    [FilterByGeologicalTime] => 
    [HiddenFilters] => Array
        (
            [0] => FilterByTipTaxa
            [1] => FilterByAge
            [2] => FilterByGeologicalTime
        )

    [BlockedFilters] => Array
        (
            [0] => FilterByTipTaxa
        )

    [SortResultsBy] => DATE_ADDED_DESC
    [ResponseType] => HTML
)

Raising the Standard in Fossil Calibration

The Fossil Calibration Database is a curated collection of well-justified calibrations, including many published in the journal Palaeontologia Electronica. We also promote best practices for justifying fossil calibrations and citing calibrations properly.

CLADE SUBMITTED: Acari
nameToSourceNodeInfo('Acari') return this node_data:
Array ( [taxonid] => 6933 [source] => NCBI )
nameToMultitreeID('Acari') returns ID:
6933
QUERY:
SELECT DISTINCT calibration_id FROM calibrations_by_NCBI_clade WHERE clade_root_multitree_id = '6933' AND calibration_id IN (SELECT CalibrationID FROM calibrations WHERE PublicationStatus = 4)
Adding calibration 385 (inner add-op or non-cladistic search)
Adding calibration 392 (inner add-op or non-cladistic search)
'Acariformes':
 displayedRelevance: 1 / 1 = 1.00
'Parasitiformes':
 displayedRelevance: 1 / 1 = 1.00
Clade member 98.17–514 Ma Added May 03, 2017
Parasitiformes – from Wolfe et al. 2016
YPM IP 307300, holotype of Luprisca incuba Siveter et al., 2014.
Wolfe, J.M., Daley, A.C., Legg, D.A., and Edgecombe, G.D. 2016. Fossil calibrations for the arthropod tree of life. Earth Science Reviews 160: 43-110.   more »
Clade member 405–514 Ma Added Apr 11, 2017
Acariformes – from Wolfe et al. 2016a
Wolfe, J.M., Daley, A.C., Legg, D.A., and Edgecombe, G.D. 2016. Fossil calibrations for the arthropod tree of life. Earth Science Reviews 160: 43-110.   more »
login