Medusina Walcotti, a Carboniferous Jellyfish
Medusina Walcotti, a Carboniferous Jellyfish
Erwin Hinckley Barbour,
Barbour, E. H. (1914). Medusina Walcotti, a Carboniferous Jellyfish. American Journal of Science, 505–506. https://doi.org/10.2475/ajs.s4-38.228.505