Editing Pinales (section)

=== Subdivision ===

Historically conifers, in the order Pinales have been considered to consist of six to seven extant families, based on the classification of class Coniferae by [[Robert Pilger|Pilger]] (1926), considered the standard through most of the twentieth century.{{sfn|Brunsfield et al|1994}} These families were treated as a single order, in distinction to some earlier systems.{{sfn|Davy|1937}} His families were;{{sfn|Pilger|1926}} 
* [[Araucariaceae]]
* [[Cupressaceae]] ([[cypresses]], [[juniper]], [[redwood]])
* [[Pinaceae]] ([[firs]], [[pines]], [[Cedar (plant)|cedars]], [[larch]], [[spruce]])
* [[Podocarpaceae]]
* [[Taxaceae]] ([[yews]]) 
* [[Cephalotaxaceae]]
* [[Taxodiaceae]]

Subsequent revisions merged the Taxodiaceae and Cupressaceae, and placed ''[[Sciadopitys]]'', formerly in Cupressaceae, into a separate family (Sciadopityaceae).{{sfn|Earle|2020}} Cephalotaxaceae had previously been recognized as a separate family, but was subsequently included in Taxaceae. Similarly [[Phyllocladaceae]] were included in Podocarpaceae. Yews (Taxaceae) have sometimes been treated as a separate order (Taxales).{{sfn|Wang|Ran|2014}}

Christenhusz and colleagues (2011) included only one family in Pinales, Pinaceae,{{sfn|Christenhusz et al|2011}} a practice subsequently followed by the [[Angiosperm Phylogeny Website]]{{sfn|Stevens|2020}} and the Gymnosperm Database.{{sfn|Earle|2020}} In this restricted model Pinales (Pinaceae) comprisea 11 genera and about 225 species, all of the other conifers originally included in this order, being included in other orders such as Cupressales.{{sfn|Christenhusz et al|2011}}