Calamopleurus
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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
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
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]
References
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- ^ Page Module:Citation/CS1/styles.css has no content."PBDB Taxon". paleobiodb.org. Retrieved 2024-04-16.
- ^ Page Module:Citation/CS1/styles.css has no content.Brownstein, Chase D.; Near, Thomas J. (2024). "A giant bowfin from a Paleocene hothouse ecosystem in North America". academic.oup.com. doi:10.1093/zoolinnean/zlae042/7659736. Retrieved 2024-04-30.
- ^ Page Module:Citation/CS1/styles.css has no content."PBDB Taxon". paleobiodb.org. Retrieved 2024-04-16.
- ^ Page Module:Citation/CS1/styles.css has no content.Peter L. Forey & Lance Grande (1998). "An African twin to the Brazilian Calamopleurus (Actinopterygii: Amiidae)". Zoological Journal of the Linnean Society. 123 (2): 179–195. doi:10.1111/j.1096-3642.1998.tb01299.x.
- ^ Page Module:Citation/CS1/styles.css has no content.Brito, Paulo M.; Nava, William R.; Martinelli, Agustin G. (2017-09-01). "A New Fossil Amiidae (Holostei: Halecomorphi) from the Upper Cretaceous Adamantina Formation, Southeastern Brazil, with comments on western Gondwana amiids". Cretaceous Research. 77: 39–43. Bibcode:2017CrRes..77...39B. doi:10.1016/j.cretres.2017.04.018. ISSN 0195-6671.
- ^ Page Module:Citation/CS1/styles.css has no content.Benyoucef, Madani; Läng, Emilie; Cavin, Lionel; Mebarki, Kaddour; Adaci, Mohammed; Bensalah, Mustapha (2015). "Overabundance of piscivorous dinosaurs (Theropoda: Spinosauridae) in the mid-Cretaceous of North Africa: The Algerian dilemma". Cretaceous Research. 55: 44–55. Bibcode:2015CrRes..55...44B. doi:10.1016/j.cretres.2015.02.002. ISSN 0195-6671.
- ^ Page Module:Citation/CS1/styles.css has no content.Peter L. Forey & Lance Grande (1998). "An African twin to the Brazilian Calamopleurus (Actinopterygii: Amiidae)". Zoological Journal of the Linnean Society. 123 (2): 179–195. doi:10.1111/j.1096-3642.1998.tb01299.x.
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