Spirulida
{{short description|Order of cephalopods}}
{{Automatic taxobox
| fossil_range = {{fossil range|Late Jurassic|Recent|earliest=Stephanian|refs=*}}
| image = Spirula spirula4.jpg
| image_caption = Spirula spirula
| taxon = Spirulida
| authority = Stolley, 1919
| subdivision_ranks = Suborders
| subdivision =
†Groenlandibelina
†Belopterina
Spirulina
| synonyms =
}}
Spirulida is an order of cephalopods comprising one extant species (Spirula spirula) and several extinct taxa.
Fossil record
- Oldest representative: Carboniferous, though contested: see Shimanskya
- Oldest uncontested representative: Late Jurassic{{cite journal|doi=10.1111/j.1475-4983.2011.01125.x|title=Taxonomy, morphology and phylogeny of Late Cretaceous spirulid coleoids (Cephalopoda) from Greenland and Canada|journal=Palaeontology|volume=55|issue=2|pages=285|year=2012|last1=Fuchs|first1=Dirk|last2=Keupp|first2=Helmut|last3=Trask|first3=PAT|last4=Tanabe|first4=Kazushige}}
Classification
Taxa marked with † are extinct.
- Order Spirulida
- Family †Shimanskyidae
- Suborder †Groenlandibelina Khromov, 1990
- Family †Groenlandibelidae
- Family †Adygeyidae
- Suborder †Belopterina Engeser, 1998
- Family †Belemnoseidae
- Family †Belopteridae
- Suborder Spirulina Pompeckj, 1912
- Family †Spirulirostridae
- Family †Spirulirostrinidae
- Family Spirulidae
References
{{Reflist}}
- [http://tolweb.org/Spirula_spirula/19989 Tree of Life: Spirulida]
- [http://sn2000.taxonomy.nl/Taxonomicon/TaxonTree.aspx?id=157561 The Taxonomicon: Order Spirulida]
- [http://www.fmnh.helsinki.fi/users/haaramo/Metazoa/Protostoma/Mollusca/Cephalopoda/Decapodiformes/Spirulida.htm Mikko's Phylogeny Archive: Spirulida]
{{Taxonbar|from=Q1370442}}