Contemporaneously meaning

Undoubtedly some relation exists between all who live contemporaneously, and so it is possible to find some connection between the intellectual activity of men and their historical movements, just as such a connection may be found between the movements of humanity and commerce, handicraft, gardening, or anything else you please.

It appears, therefore, contemporaneously with Christianity, and is a sign of the world-weariness and deep religious need that mark the decay of the old world.

The fact that other philosophers, notably Etienne Louis Malus and Augustin Fresnel, were pursuing the same investigations contemporaneously in France does not invalidate Brewster's claim to independent discovery, even though in one or two cases the priority must be assigned to others.

and cut off contemporaneously.

Aldrovandi in De animalibus insectis (1602) almost contemporaneously distinguished between "terrestrial insects," including woodlice, earthworms and slugs, and "aquatic insects," comprising annelids and starfishes.