Rotaliida
The Rotaliida are an order of Foraminifera, characterized by multilocular tests (shells) composed of bilamellar perforate hyaline lamellar calcite that may be optically radial or granular.
In form, rotaliid tests are typically enrolled, but may be reduced to biserial or uniserial, or may be encrusting with proliferated chambers. Chambers may be simple or subdivided by secondary partitions; the surface is smooth, papillate, costate, striate, or cancellate; the aperture is simple or with an internal toothplate, entosolenian tube, or hemicylindrical structure; it may have an internal canal or stolen systems.
25 branches of this order, most-observed first
Acervulinoidea
superfamilyAcervulinoidea
Rotalioidea
superfamilyRotalioidea
Planorbulinoidea
superfamilyPlanorbulinoidea
Globigerinoidea
superfamilyGlobigerinoidea
Nummulitoidea
superfamilyNummulitoidea
Serioidea
superfamilySerioidea
Discorboidea
superfamilyDiscorboidea
Rotaliacea
superfamilyRotaliacea
Cassidulinoidea
superfamilyCassidulinoidea
Nonionoidea
superfamilyNonionoidea
Asterigerinoidea
superfamilyAsterigerinoidea
Globorotalioidea
superfamilyGloborotalioidea
Buliminoidea
superfamilyBuliminoidea
Turrilinoidea
superfamilyTurrilinoidea
Planorbulinacea
superfamilyPlanorbulinacea
Chilostomelloidea
superfamilyChilostomelloidea
Glabratelloidea
superfamilyGlabratelloidea
Pseudoparrellidae
familyPseudoparrellidae
Siphoninoidea
superfamilySiphoninoidea
Nonionacea
superfamilyNonionacea
Heterohelicoidea
superfamilyHeterohelicoidea
Rotaliporoidea
superfamilyRotaliporoidea
Ammoniidae
familyAmmoniidae
Louisianinidae
familyLouisianinidae
Delosinoidea
superfamilyDelosinoidea
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Rotaliida 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 348290.