| Tarrasiiformes Temporal range:
| |
|---|---|
| |
| †Paratarrasius hibbardi Lund and Melton Jr. 1982 from the Mississippian (Serpukhovian) Heath Formation of Bear Gulch, Montana | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Order: | Tarrasiiformes
|
| Families | |
| |
Tarasiiformes is an extinct order of prehistoric ray-finned fish.[1]
Taxonomy[edit]
- Order †Tarrasiiformes sensu Lund & Poplin 2002 [Haplistia][2][3][4]
- Family †Tarrasiidae Traquair 1881 emend. Woodward 1891
- Genus †Apholidotos Lund ex Frickinger 1991 nomen novum
- Species †Apholidotos ossna Lund ex Frickinger 1991 nomen novum
- Genus †Paratarrasius Lund & Melton 1982
- Species †Paratarrasius hibbardi Lund & Melton 1982
- Genus †Tarrasius Traquair 1881
- Species †Tarrasius problematicus Traquair 1881
- Genus †Apholidotos Lund ex Frickinger 1991 nomen novum
- Family †Tarrasiidae Traquair 1881 emend. Woodward 1891
Timeline of genera[edit]
Tarrasius is an extinct genus of Tarasiiformes. Tarrasius problematicus (of Mississippian origin, ~ 350 Ma) featured a fully regionalized tetrapod-like spine divided into 5 distinct segments.[5][6] It is not considered a transitional fossil though, but an extreme example of convergent evolution.
See also[edit]
Bibliography[edit]
- Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 363: 1–560. Retrieved 2011-05-17.
References[edit]
- ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 363: 1–560. Retrieved 2009-02-27.
- ^ Haaramo, Mikko (2007). "Chordata – lancets, tunicates, and vertebrates". Mikko's Phylogeny Archive. Retrieved 30 December 2016.
- ^ Nelson, Joseph S.; Grande, Terry C.; Wilson, Mark V. H. (2016). Fishes of the World (5th ed.). John Wiley & Sons. ISBN 978-1-118-34233-6.
- ^ van der Laan, Richard (2016). "Family-group names of fossil fishes".
{{cite journal}}: Cite journal requires|journal=(help) - ^ Lauren Cole Sallan (23 May 2012). "Tetrapod-like axial regionalization in an early ray-finned fish". Proceedings of the Royal Society B. 279 (1741): 3264–3271. doi:10.1098/rspb.2012.0784. PMC 3385743. PMID 22628471.
- ^ "Human-Like Spine Morphology Found in Aquatic Eel Fossil". Science Daily. May 22, 2012.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction