show/hide search details
Pantherophis+Pituophis
– from Head et al. 2016
Heterodon + Farancia
– from Head et al. 2016
======== GET (form) values ======== Array ( [SortResultsBy] => DATE_ADDED_DESC [SimpleSearch] => [HiddenFilters] => Array ( [0] => FilterByTipTaxa [1] => FilterByAge [2] => FilterByGeologicalTime ) [BlockedFilters] => Array ( [0] => FilterByTipTaxa ) [TaxonA] => [TaxonB] => [FilterByClade] => Colubridae [MinAge] => [MaxAge] => [FilterByGeologicalTime] => )
======== $search object ======== Array ( [SimpleSearch] => [FilterByTipTaxa] => Array ( [TaxonA] => [TaxonB] => ) [FilterByClade] => Colubridae [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: Colubridae
nameToSourceNodeInfo('Colubridae') return this node_data:
Array ( [taxonid] => 8578 [source] => NCBI )
Array ( [taxonid] => 8578 [source] => NCBI )
nameToMultitreeID('Colubridae') returns ID:
-1826
-1826
QUERY:
SELECT DISTINCT calibration_id FROM calibrations_by_NCBI_clade WHERE clade_root_multitree_id = '-1826' AND calibration_id IN (SELECT CalibrationID FROM calibrations WHERE PublicationStatus = 4)
SELECT DISTINCT calibration_id FROM calibrations_by_NCBI_clade WHERE clade_root_multitree_id = '-1826' AND calibration_id IN (SELECT CalibrationID FROM calibrations WHERE PublicationStatus = 4)
Adding calibration 345 (inner add-op or non-cladistic search)
Adding calibration 346 (inner add-op or non-cladistic search)
'Heterodon + Farancia':
displayedRelevance: 1 / 1 = 1.00
'Pantherophis+Pituophis':
displayedRelevance: 1 / 1 = 1.00
> 11.93 Ma | Added Jun 21, 2016 |
Head, J.J., K. Mahlow, and J. Müller. 2016. Fossil calibration dates for molecular phylogenetic analysis of snakes 2: Caenophidia, Colubroidea, Elapoidea, Colubridae. Palaeontologia Electronica, 19.2.2FC
more »
> 12.08 Ma | Added Jun 21, 2016 |
Head, J.J., K. Mahlow, and J. Müller. 2016. Fossil calibration dates for molecular phylogenetic analysis of snakes 2: Caenophidia, Colubroidea, Elapoidea, Colubridae. Palaeontologia Electronica, 19.2.2FC
more »