Rhaphidospora cavernarum | |
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Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Lamiales |
Family: | Acanthaceae |
Genus: | Rhaphidospora |
Species: | R. cavernarum |
Binomial name | |
Rhaphidospora cavernarum (F.Muell.) R.M.Barker [1] | |
Synonyms | |
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Rhaphidospora cavernarum is a plant species in the family Acanthaceae. The species was thought to be extinct in Queensland until rediscovered on Cape York, between Cooktown and the Lockhart River. Previous to this, the species had not been seen since 1873. [2]
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In paleontology, a Lazarus taxon is a taxon that disappears for one or more periods from the fossil record, only to appear again later. Likewise in conservation biology and ecology, it can refer to species or populations that were thought to be extinct, and are rediscovered. The term Lazarus taxon was coined by Karl W. Flessa & David Jablonski in 1983 and was then expanded by Jablonski in 1986. Wignall and Benton defined Lazarus taxa as, "At times of biotic crisis many taxa go extinct, but others only temporarily disappeared from the fossil record, often for intervals measured in millions of years, before reappearing unchanged". Earlier work also supports the concept though without using the name Lazarus taxon, like work by Christopher R. C. Paul.
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Rhaphidospora is a genus of flowering plants belonging to the family Acanthaceae. A classification of the Acanthaceae published in 2022 treats Rhaphidospora as a synonym of Justicia.