The Cellosaurus (https://www.cellosaurus.org/) is a knowledge resource on cell lines. It attempts to describe all cell lines used in biomedical research.

Its scope includes:

• Immortalized cell lines
• Naturally immortal cell lines (example: stem cell lines)
• Finite life cell lines when those are distributed and used widely
• Vertebrate cell lines with an emphasis on human, mouse and rat cell lines
• Invertebrate (insects and ticks) cell lines

Cellosaurus is developed by Amos Bairoch of the CALIPHO group at the SIB – Swiss Institute of Bioinformatics.