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

    [FilterByClade] => Cetartiodactyla
    [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: Cetartiodactyla
nameToSourceNodeInfo('Cetartiodactyla') return this node_data:
Array ( [taxonid] => 91561 [source] => NCBI )
nameToMultitreeID('Cetartiodactyla') returns ID:
-1709
QUERY:
SELECT DISTINCT calibration_id FROM calibrations_by_NCBI_clade WHERE clade_root_multitree_id = '-1709' AND calibration_id IN (SELECT CalibrationID FROM calibrations WHERE PublicationStatus = 4)
Adding calibration 258 (inner add-op or non-cladistic search)
Adding calibration 259 (inner add-op or non-cladistic search)
Adding calibration 260 (inner add-op or non-cladistic search)
Adding calibration 261 (inner add-op or non-cladistic search)
'Artiodactyla':
 displayedRelevance: 1 / 1 = 1.00
'Whippomorpha - Ruminantia ':
 displayedRelevance: 1 / 1 = 1.00
'Cetacea':
 displayedRelevance: 1 / 1 = 1.00
'Bovinae-Antilopinae ':
 displayedRelevance: 1 / 1 = 1.00
Clade member 16–28.1 Ma Added Oct 26, 2014
Bovinae-Antilopinae – from Benton et al. 2015
Benton, M.J., Donoghue, P.C.J., Asher, R.A., Friedman, M., Near, T.J., and Vinther, J. 2015. Constraints on the timescale of animal evolutionary history. Palaeontologia Electronica, 18.1.1FC.   more »
Clade member 33.9–56 Ma Added Oct 24, 2014
Cetacea – from Benton et al. 2015
Benton, M.J., Donoghue, P.C.J., Asher, R.A., Friedman, M., Near, T.J., and Vinther, J. 2015. Constraints on the timescale of animal evolutionary history. Palaeontologia Electronica, 18.1.1FC.   more »
Clade member 52.4–66 Ma Added Oct 16, 2014
Whippomorpha - Ruminantia – from Benton et al. 2015
Benton, M.J., Donoghue, P.C.J., Asher, R.A., Friedman, M., Near, T.J., and Vinther, J. 2015. Constraints on the timescale of animal evolutionary history. Palaeontologia Electronica, 18.1.1FC.   more »
Clade member 52.4–66 Ma Added Oct 16, 2014
Artiodactyla – from Benton et al. 2015
Benton, M.J., Donoghue, P.C.J., Asher, R.A., Friedman, M., Near, T.J., and Vinther, J. 2015. Constraints on the timescale of animal evolutionary history. Palaeontologia Electronica, 18.1.1FC.   more »
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