Yimaia Temporal range:
| |
---|---|
Restoration of Yimaia recurva from the Jurassic of China | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Gymnospermae |
Division: | Ginkgophyta |
Class: | Ginkgoopsida |
Order: | Ginkgoales |
Family: | †
Yimaiaceae Zhou, 1997 |
Genus: | †
Yimaia Zhou et Zhang, 1988 |
Species | |
|
Yimaia is an extinct genus of Ginkgoalean tree, and the only member of the family Yimaiaceae. In botanical form classification, its a form taxon for ginkgoalean ovulate organs. Yimaia species are distinguished from other Ginkgoales by the presence of "Ovulate organs consisting of a peduncle and up to eight or nine terminal, sessile, contiguous and orthotropous (straight, upright and with a micropyle at apex) ovules." The ovules are associated with leaves of either Baiera or Ginkgoites leaf morphospecies. [1] Fossils have been found in Middle Jurassic deposits in China.
Yimaia Temporal range:
| |
---|---|
Restoration of Yimaia recurva from the Jurassic of China | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Gymnospermae |
Division: | Ginkgophyta |
Class: | Ginkgoopsida |
Order: | Ginkgoales |
Family: | †
Yimaiaceae Zhou, 1997 |
Genus: | †
Yimaia Zhou et Zhang, 1988 |
Species | |
|
Yimaia is an extinct genus of Ginkgoalean tree, and the only member of the family Yimaiaceae. In botanical form classification, its a form taxon for ginkgoalean ovulate organs. Yimaia species are distinguished from other Ginkgoales by the presence of "Ovulate organs consisting of a peduncle and up to eight or nine terminal, sessile, contiguous and orthotropous (straight, upright and with a micropyle at apex) ovules." The ovules are associated with leaves of either Baiera or Ginkgoites leaf morphospecies. [1] Fossils have been found in Middle Jurassic deposits in China.