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

    [FilterByClade] => Afrotheria
    [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: Afrotheria
nameToSourceNodeInfo('Afrotheria') return this node_data:
Array ( [taxonid] => 311790 [source] => NCBI )
nameToMultitreeID('Afrotheria') returns ID:
-1700
QUERY:
SELECT DISTINCT calibration_id FROM calibrations_by_NCBI_clade WHERE clade_root_multitree_id = '-1700' AND calibration_id IN (SELECT CalibrationID FROM calibrations WHERE PublicationStatus = 4)
Adding calibration 251 (inner add-op or non-cladistic search)
Adding calibration 252 (inner add-op or non-cladistic search)
Adding calibration 253 (inner add-op or non-cladistic search)
'Afrotheria':
 displayedRelevance: 1 / 1 = 1.00
'Proboscidea':
 displayedRelevance: 1 / 1 = 1.00
'Sirenia':
 displayedRelevance: 1 / 1 = 1.00
Clade member 47.6–66 Ma Added Oct 16, 2014
Sirenia – 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 5.33–23.03 Ma Added Oct 16, 2014
Proboscidea – 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 56–164.6 Ma Added Oct 16, 2014
Afrotheria – 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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