Spirulida.html |
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| Spirulida | ||||||||||||
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Spirulida is an order of cephalopods comprising one extant species and several extinct taxa.
Classification
- Order Spirulida
- Suborder †Groenlandibelida
- Family †Groenlandibelidae
- Family †Adygeyidae
- Suborder †Belopterina
- Family †Belemnoseidae
- Family †Belopteridae
- Suborder Spirulina
- Family †Spirulirostridae
- Family †Spirulirostrinidae
- Family Spirulidae
- Suborder †Groenlandibelida