Barnacles and Allies
Thecostraca
Thecostraca (from Ancient Greek θήκη (thḗkē) 'box' and ὄστρακον (óstrakon) 'shell') is a class of marine invertebrates containing over 2,200 described species. Many species have planktonic larvae which become sessile or parasitic as adults.
The most prevalent subgroup are the barnacles (subclass Cirripedia), constituting a little over 2,100 known species.
3 branches of this subclass, most-observed first
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Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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In the stacks
Searching the stacks…
Every page naming Thecostraca in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 144117.