Returns information about the source references associated with
taxa in the Paleobiology Database. You can use the same parameters
that are available with pbdb_taxa, but reference records are
returned instead of taxon records. One record is returned per
reference, even if it is associated with multiple taxa.
name: Returns information about the most fundamental taxonomic
name matching this string. The % and _ characters may be used as
wildcards.
id: Returns information about the taxonomic name corresponding
to this identifier. You may not specify both name and id in
the same query.
show: Show extra variables.
rel: Set rel = "synonyms" to select all synonyms of the base
taxon or taxa; rel = "children" to select the taxa immediately
contained within the base taxon or taxa; rel = "all_children"
to select all taxa contained within each matching taxon and
within all synonymous taxa; rel = "all_parents" to select all
taxa that contain any of the matching taxa.
extant: Logical indicating whether to select only extant or
non-extant taxa.