One anatomically diagnosed fossil wood from the Middle–Late Jurassic transition records a Ginkgo-like xylem combination while remaining an isolated organ taxon rather than a whole plant or phylum first appearance.
Represented range165–153 Ma
RegionsTiaojishan Formation, western Liaoning, China
CladesGinkgoxylon liaoningense · Ginkgo-like wood
Claim ledger
fossil-range · medium
The isolated wood specimen PB22285 from the 153–165 Ma Tiaojishan Formation of western Liaoning was described as Ginkgoxylon liaoningense from a suite of wood-anatomical characters, providing a well-dated Middle–Late Jurassic Ginkgo-like wood record without establishing the first appearance of Ginkgophyta or an association with a particular leaf species.