Species
Chaetetes pyriformis (Eichwald, 1829)
Current taxon already exists. See initial taxon Mesotrypa excentrica
 Taxon ID: 7592
Fossil group: Bryozoa
Belongs to: Chaetetes
Other version of taxon: Mesotrypa excentrica
Synonymy list
1829     Dianulites pyriformis, n. — Eichwald , pp. 181, fig. Tab. II fig. 2
1856     Chaetetes piriformis — Eichwald , pp. 92
1856     Chaetetes piriformis (pars) — Eichwald , pp. 92
1857     Chaetetes piriformis — Eichwald , pp. 38
1860     Chaetetes pyriformis (pars) — Eichwald , pp. 478
1861     Chaetetes pyriformis (pars) — Eichwald , pp. 112
1877     Callopora piriformis — Dybowski , pp. 117, fig. IV 6a,b
1953     non Mesotrypa piriformis (Eichwald) — Modzalevskaya , pp. 118, fig. V
1978     Mesotrypa piriformis (Eichwald, 1832) — Astrova , pp. 100
2001     Dianulites eichwaldi — Pushkin & Popov , pp. 24
Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Porifera | 
| Class | Demospongea | 
| Order | Chaetetida | 
| Family | Chaetetidae | 
| Subfamily | Chaetetinae | 
| Genus | Chaetetes | 
| Species | hemisphaericus | 
| pyriformis |