Calamopleurus
| Calamopleurus Temporal range:
| |
|---|---|
| File:Calamopleurus cylindricus MHNT.jpg | |
| Calamopleurus cylindricus | |
| File:Calamopleurus cylindricus.png | |
| Reconstruction of Calamopleurus cylindricus | |
Scientific classification 
| |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Clade: | Halecomorphi |
| Order: | Amiiformes |
| Family: | Amiidae |
| Subfamily: | †Vidalamiinae |
| Genus: | †Calamopleurus Agassiz, 1841 |
| Type species | |
| Calamopleurus cylindricus Agassiz, 1841
| |
| Species | |
|
See text | |
Calamopleurus is a prehistoric genus of marine halecomorph ray-finned fish from the Early Cretaceous of South America and northern Africa. It was a relative of the modern bowfin, with both belonging to the family Amiidae.[1] C. cylindricus was among the largest known amiids, rivaling the giant Paleocene bowfin Amia pattersoni in size. However, both were slightly smaller than Melvius and Amia basiloides, the two largest known amiids. It is one of the earliest known amiids to evolve a large body size.[2]
Taxonomy
[edit | edit source]It is thought Calamopleurus is a sister genus to Maliamia, the last surviving member of the vidalamiines, which is the largely marine amiid group that also contained Calamopleurus. Both are placed in the tribe Calamopleurini.[3]
The genus contains three species:[4][5]
- †C. africanus Forey & Grande, 1998 - Late Albian/Early Cenomanian of Morocco and Algeria[6]
- †C. cylindricus Agassiz, 1841 - Late Aptian/Early Albian of Brazil (Crato and Santana Formations)
- †C. mawsoni Woodward, 1902 - Late Hauterivian/Early Barremian of Brazil (Bahia Group)
Calamopleurus africanus
[edit | edit source]This species lived in southern Morocco and Algeria during the Cretaceous period in the late Albian and early Cenomanian. It was described from fragmentary remains in the Kem Kem beds. Ossified dermopterotic ribs were inferred from a loose association between the dermosphenotic and the roof of the skull.[7]
.jpg){kind=link}
References
[edit | edit source]Lua error in mw.title.lua at line 392: bad argument #2 to 'title.new' (unrecognized namespace name 'Portal').
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
Lua error in Module:Taxonbar at line 165: attempt to index field 'wikibase' (a nil value).
.jpg){kind=link}
- Amioidea
- Prehistoric ray-finned fish genera
- Cretaceous fish of Africa
- Early Cretaceous fish of South America
- Crato Formation
- Romualdo Formation
- Fossils of Morocco
- Fossils of Algeria
- Taxa named by Louis Agassiz
- Hauterivian genus first appearances
- Barremian genera
- Aptian genera
- Albian genera
- Cenomanian genus extinctions
- Fossil taxa described in 1841
- Ray-finned fish stubs