BETA TEST - Fossil data and pages are very much experimental and under development. Please report any problems
Blechnum
| Description | Blechnum, known as hard fern, is a genus of ferns in the family Blechnaceae, subfamily Blechnoideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). Two very different circumscriptions of the genus are used by different authors. In the PPG I system, based on Gasper et al. (2016), Blechnum is one of 18 genera in the subfamily Blechnoideae, and has about 30 species. Other sources use a very broadly defined Blechnum s.l., including accepting only two other genera in the subfamily. The genus then has about 250 species. In the PPG I circumscription, the genus is mostly neotropical, with a few southern African species. From Wikipedia article at https://en.wikipedia.org/wiki/Blechnum, which is released under the Creative Commons Attribution-Share-Alike License 3.0. | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Source Data |
| |||||||||||||||||||||||||||
| Rank | genus | |||||||||||||||||||||||||||
| Taxonomy (GBIF) | Life : Plantae : Tracheophyta : Polypodiopsida : Polypodiales : Blechnaceae : Blechnum | |||||||||||||||||||||||||||
| Taxonomy (PBDB) | Life : Plantae : Pteridophyta : Pteridopsida : Polypodiales : Blechnaceae : Blechnum | |||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | |||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
| |||||||||||||||||||||||||||
| Scientific Name | Blechnum L. | |||||||||||||||||||||||||||
| Opinions (PBDB) |
| |||||||||||||||||||||||||||
| Status (PBDB) | extant | |||||||||||||||||||||||||||
| Taxon Size (PBDB) | 3 | |||||||||||||||||||||||||||
| Extant Size (PBDB) | 1 (33%) | |||||||||||||||||||||||||||
| First Recorded Appearance | 152 - 140 Ma Mesozoic | |||||||||||||||||||||||||||
| Primary Reference (PBDB) | E. J. Romero and C. A. Fernandez. 1981. Palinología de paleosuelos del Cuaternario de los alrededores de Lobería (Provincia de Buenos Aires, República Argentina). Ameghiniana XVIII(3-4):273-285 | |||||||||||||||||||||||||||
| Common Name(s) | Rippenfarn, Midsorus Fern, Kambräknar | |||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Blechnum |
External Images
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
|---|---|---|---|---|---|
| Blechnum achalense species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum anceps ✝ species | accepted (GBIF) listed (PBDB) | 5 | 66.0 Ma Late/Upper Cretaceous | 66.0 Ma Late/Upper Cretaceous | |
| Blechnum anthracinum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum appendiculatum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum arcuatum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum areolatum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum asplenioides species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum auriculatum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum australe species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum austrobrasilianum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum betijoquensis species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum caudatum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum confluens species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum corralense species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum danaeaceum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum dispersum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum doodia species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum emarginatum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum ensiformis species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum falciculatum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum gracile species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum gracilipes species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum guayanense species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum hastatum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum heringeri species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum hookerianum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum lanceola species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum leopoldense species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum longifolium species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum longipilosum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum ludificans species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum malacothrix species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum meridense species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum occidentale species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum occidentalis species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum ornifolium species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum pampasicum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum penna species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum polypodioides species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum pulchrum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum punctulatum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum ryanii species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum schiedeanum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum socialis species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum societatum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum spicant species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum tomentosum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum turbioense ✝ species | accepted (GBIF) listed (PBDB) | 1 | 33.9 Ma Oligocene | 33.9 Ma Oligocene | |
| Blechnum whalianii species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum xcaudatum species | accepted (GBIF) | No associated record in PBDB | |||
| Blechnum xleopoldense species | accepted (GBIF) | No associated record in PBDB | |||
Obsolete Names
Synonymy List
| Year | Name and Author |
|---|---|
| 1985 | Blechnum Baldoni et al. |
| 1991 | Blechnum Carpenter |
References
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
