Calamopleurusis a prehistoric genus of marinehalecomorphray-finned fishfrom theEarly Cretaceousof South America and northern Africa. It was a relative of the modernbowfin,with both belonging to the familyAmiidae.[1]
| Calamopleurus Temporal range:
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|---|---|
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| Calamopleurus cylindricus | |
Scientific classification
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Clade: | Halecomorphi |
| Order: | Amiiformes |
| Family: | Amiidae |
| Subfamily: | †Vidalamiinae |
| Genus: | †Calamopleurus Agassiz,1841 |
| Type species | |
| Calamopleurus cylindricus Agassiz, 1841
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| Species | |
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See text | |
It contains three species:[2][3]
- †C. africanusForey &Grande,1998- LateAlbian/EarlyCenomanianofMoroccoandAlgeria[4]
- †C. cylindricusAgassiz,1841- LateAptian/Early Albian ofBrazil(CratoandSantanaFormations)
- †C. mawsoniWoodward,1902-LateHauterivian/EarlyBarremianof Brazil (Bahia Group)
It is thought to be thesister genustoMaliamia,the last surviving member of thevidalamiines,which is the largely marine amiid group that also containedCalamopleurus.Both are placed in the tribeCalamopleurini.[1]
C. cylindricuswas among the largest known amiids, rivaling the giantPaleocenebowfinAmia pattersoniin size. However, both were slightly smaller thanMelviusandAmia basiloides,the two largest known amiids. It is one of the earliest known amiids to evolve a large body size.[5]
References
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- ^ab"PBDB Taxon".paleobiodb.org.Retrieved2024-04-16.
- ^Peter L. Forey & Lance Grande (1998)."An African twin to the BrazilianCalamopleurus(Actinopterygii: Amiidae) ".Zoological Journal of the Linnean Society.123(2): 179–195.doi:10.1111/j.1096-3642.1998.tb01299.x.
- ^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.ISSN0195-6671.
- ^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.ISSN0195-6671.
- ^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.Retrieved2024-04-30.
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