Scombroidei or Scombrales is a suborder or infraorder of the order Scombriformes or suborder Scombroidei. The suborder or infraorder includes the tunas, mackerel and snake-mackerels. Regular scombrids are observed to have large heads, eyes, and mouths. In most cases, the second dorsal fin will develop before the development of the first, originally, both Scombroidei and Stromateoidei were placed under the order Perciformes, but both taxa are now lumped together into the order Scombriformes or alternatively ranked as infraorders (Stromateales and Scombrales) under the suborder Scombroidei within the order Syngnathiformes.
| Scombroidei Temporal range:
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|---|---|
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| A school of Indian mackerel Rastrelliger kanagurta | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Scombriformes |
| Suborder: | Scombroidei |
| Families | |
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The earliest known member is the scombrid Landanichthys from the Selandian of Angola.[1]
References
edit- ^ Friedman, Matt; V. Andrews, James; Saad, Hadeel; El-Sayed, Sanaa (2023-06-16). "The Cretaceous–Paleogene transition in spiny-rayed fishes: surveying "Patterson's Gap" in the acanthomorph skeletal record André Dumont medalist lecture 2018". Geologica Belgica. doi:10.20341/gb.2023.002. ISSN 1374-8505.
- Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 363: 1–560. Retrieved 2011-05-19.1-560&rft.date=2002&rft.aulast=Sepkoski&rft.aufirst=Jack&rft_id=http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=611&rank=class&rfr_id=info:sid/en.wikipedia.org:Scombroidei" class="Z3988">
- Nishikawa, Rimmer, Yasuo, David W. (1987). Identification of larval tunas, billfishes and other scombroid fishes (suborder Scombroidei): an illustrated guide. No. 186. p. 2.
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