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 Nomenclature f ...
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These classifications have now been superseded, see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