bonnethead
Sphyrna tiburo (Linnaeus, 1758)
Accepted species in Catalogue of Life’s 11 September 2026 base release. This preserves the source classification and available supporting data; it is not a completed species monograph.
Sphyrna tiburo (Aquarium of the Pacific)
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Open encyclopedia reference
The bonnethead (Sphyrna tiburo), also called a bonnet shark or shovelhead, is the smallest member of the hammerhead shark genus Sphyrna, and part of the family Sphyrnidae. It is an abundant species in the littoral zone of the North Atlantic and the Gulf of Mexico, is the only shark species known to display sexual dimorphism in the morphology of the head, and is one of two shark species known to be omnivorous.
Wikipedia contributors, Bonnethead; see linked history · CC BY-SA 4.0 . Plain-text lead excerpt, at most 180 words; no infobox or later sections Retrieved 2026-10-05T02:39:17.819551+00:00. This reference remains separate from the taxonomic record.
Identity & source status
- Scientific name
- Sphyrna tiburo (Linnaeus, 1758)
- Name authority
- (Linnaeus, 1758)
- Common name
- bonnethead
- Rank
- species
- Accepted status
- accepted
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Elasmobranchii
- Order
- Carcharhiniformes
- Family
- Sphyrnidae
- Genus
- Sphyrna
- Extinction status
- Not supplied by this source
Source habitat flags: Marine: yes · Freshwater: no · Terrestrial: no. These do not form a complete habitat description.
Classification family tree
Nested taxonomic groups from the source. This is not a direct-ancestor chain, a dated evolutionary tree or a phylogenetic reconstruction.
- domainEukaryota (Chatton, 1925) Whittaker & Margulis, 1978
- kingdomAnimalia
- phylumChordata
- subphylumVertebrata
- infraphylumGnathostomata
- parvphylumChondrichthyes
- classElasmobranchii
- subclassNeoselachii
- infraclassSelachii
- superorderGaleomorphi
- orderCarcharhiniformes
- familySphyrnidae Bonaparte, 1840
- genusSphyrna Rafinesque, 1810
- speciesSphyrna tiburo (Linnaeus, 1758)
Close classified relatives
These entries share the source’s genus, Sphyrna. They are not necessarily the closest relatives established by molecular evidence.
| Species | Classification | Source status |
|---|---|---|
| scalloped bonnetheadSphyrna corona Springer, 1940 | SphyrnidaeChordata | Accepted speciesExtinction status not supplied |
| Sphyrna couardi Cadenat, 1951 | SphyrnidaeChordata | Accepted speciesExtinction status not supplied |
| scoopheadSphyrna media Springer, 1940 | SphyrnidaeChordata | Accepted speciesExtinction status not supplied |
| great hammerheadSphyrna mokarran (Rüppell, 1837) | SphyrnidaeChordata | Accepted speciesExtinction status not supplied |
| Sphyrna vespertina Springer, 1940 | SphyrnidaeChordata | Accepted speciesExtinction status not supplied |
| Sphyrna gilberti Quattro, Driggers, Grady, Ulrich & Roberts, 2013 | SphyrnidaeChordata | Accepted speciesRecorded extant |
| scalloped hammerheadSphyrna lewini (Griffith & Smith, 1834) | SphyrnidaeChordata | Accepted speciesExtinction status not supplied |
| Sphyrna alleni Gonzalez, Postaire, Driggers, Caballero & Chapman, 2024 | SphyrnidaeChordata | Accepted speciesExtinction status not supplied |
| smalleye hammerheadSphyrna tudes (Valenciennes, 1822) | SphyrnidaeChordata | Accepted speciesExtinction status not supplied |
| hammerheadSphyrna zygaena (Linnaeus, 1758) | SphyrnidaeChordata | Accepted speciesExtinction status not supplied |
Names & synonyms
Names explicitly linked to this accepted taxon in the source. Synonymy can change with revision.
| Recorded name | Source status |
|---|---|
| Squalus tiburo Linnaeus, 1758 Linnaeus, 1758 | ambiguous synonym |
| Sphyrna tiburo tiburo (Linnaeus, 1758) (Linnaeus, 1758) | synonym |
Source literature & publication evidence
References attached to this source record, including nomenclatural citations where supplied. This is a selected bibliography; abbreviated citations remain in the source’s form.
- https://www.marinespecies.org/aphia.php?p=taxdetails&id=158517 Source fields: Taxon.tsv dwc:namePublishedIn, Taxon.tsv dcterms:references
Origins, evidence & remaining research
Name authority and publication references document nomenclature where the source supplies it. They do not establish evolutionary origins or the earliest fossil occurrence.
Specimen-level evidence, morphology, ecological research, phylogenetic studies, a comprehensive bibliography and a located literary passage have not yet been compiled for this record.
Dataset citation & attribution
This exact taxon in ChecklistBank · Catalogue of Life 2026-09-11
Catalogue of Life 2026-09-11; dataset 316321; doi:10.48580/dgz5n. https://creativecommons.org/licenses/by/4.0/ . Retrieved 5 October 2026.
Stable key: col:4Z2QP. Classification follows source parent identifiers. English common names may vary by region.