https://www.semanticscholar.org/topic/unclassified-Spirotrichea/8955531
unclassified Spirotrichea | Semantic Scholar
unclassifiedsemanticscholar
https://species.wikimedia.org/wiki/Spirotrichea
Spirotrichea - Wikispecies
wikispecies
https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=33829&lvl=3&keep=1&srchmode=1&unlock
Taxonomy browser Taxonomy Browser (Spirotrichea)
THE NCBI Taxonomy database allows browsing of the taxonomy tree, which contains a classification of organisms.
taxonomy browser