Inarticulata was historically defined as one of the two classes of the
phylum
In biology, a phylum (; plural: phyla) is a level of classification or taxonomic rank below kingdom and above class. Traditionally, in botany the term division has been used instead of phylum, although the International Code of Nomenclatu ...
Brachiopoda and referred to those having no hinge. The other class was
Articulata, meaning articulated — having a hinge between the dorsal and ventral valves.
These classifications have now been superseded, see
brachiopod classification.
See also
*
Treatise on Invertebrate Paleontology
The ''Treatise on Invertebrate Paleontology'' (or ''TIP'') published by the Geological Society of America and the University of Kansas Press, is a definitive multi-authored work of some 50 volumes, written by more than 300 paleontologists, and co ...
— also mentions the new Brachiopoda classification system
References
{{reflist
Animal classes
Obsolete animal taxa
Brachiopod taxonomy