Protostomia (/ˌproʊtəˈstoʊmi.ə/) is the clade of animals once thought to be characterized by the formation of the organism's mouth before its anus during...

gnathifera. The traditional division of Bilateria into Deuterostomia and Protostomia was challenged when new morphological and molecular evidence found support...

Protostomias is an extinct genus of prehistoric bony fish that lived during the lower Cenomanian. Paleontology portal Fish portal Prehistoric fish List...

Deuterostomia's sister clade is Protostomia, animals that develop mouth first and whose digestive tract development is more varied. Protostomia includes the ecdysozoans...

Lophotrochozoa). The last three groups are also collectively known as Protostomia.[citation needed] However, some skeptics[who?] emphasize inconsistencies...

sister to the proposed clade Centroneuralia, consisting of Chordata + Protostomia. Several animal phyla lack bilateral symmetry. These are the Porifera...

Animals are multicellular eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen...

with bilateral symmetry as an embryo, consisting of the Chordata and Protostomia, united by the presence of a central nervous system. An alternative to...

Eumetazoa Clade: ParaHoxozoa Clade: Bilateria Clade: Nephrozoa (unranked): Protostomia Superphylum: Ecdysozoa (unranked): Panarthropoda (unranked): Tactopoda...

Animals Corroborate the Monophyly of Ecdysozoa, Lophotrochozoa, and Protostomia". Molecular Biology and Evolution. 22 (5): 1246–1253. doi:10.1093/molbev/msi111...