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

    [TaxonA] => 
    [TaxonB] => 
    [FilterByClade] => Metatheria
    [MinAge] => 
    [MaxAge] => 
    [FilterByGeologicalTime] => 
)
	
======== $search object ========
Array
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            [TaxonB] => 
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    [FilterByAge] => Array
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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: Metatheria
nameToSourceNodeInfo('Metatheria') return this node_data:
Array ( [taxonid] => 9263 [source] => NCBI )
nameToMultitreeID('Metatheria') returns ID:
-1695
QUERY:
SELECT DISTINCT calibration_id FROM calibrations_by_NCBI_clade WHERE clade_root_multitree_id = '-1695' AND calibration_id IN (SELECT CalibrationID FROM calibrations WHERE PublicationStatus = 4)
Adding calibration 129 (inner add-op or non-cladistic search)
Adding calibration 246 (inner add-op or non-cladistic search)
'Macropodoidea':
 displayedRelevance: 1 / 1 = 1.00
'Marsupialia':
 displayedRelevance: 1 / 1 = 1.00
Clade member 47.6–131.3 Ma Added Oct 13, 2014
Marsupialia – 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 15.97–54.65 Ma Added May 31, 2013
Macropodoidea – from Phillips, 2015
Phillips, M.J. 2015. Four mammal fossil calibrations: balancing competing palaeontological and molecular considerations. Palaeontologia Electronica, 18.1.5FC.   more »
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