https://pubchem.ncbi.nlm.nih.gov/taxonomy/Sicista-severtzovi
Severtzov's birch mouse | Taxonomy - PubChem
Taxonomy information for Sicista severtzovi. Find diseases associated with this biological target and compounds tested against it in bioassay experiments.
birchmousetaxonomypubchem
https://eunis.eea.europa.eu/species/441960
Remiz macronyx - (Severtzov, 1873)
Remiz macronyx belongs to the Birds group
https://species.wikimedia.org/wiki/Nikolai_Severtzov
Nikolai Alekseevich Severtzov - Wikispecies
nikolaiwikispecies