contemporaneous

samanaikainen exist Existing or created in the same period of time.
1973, w:Cheikh Anta Diop|Cheikh Anta Diop, quoted in Harun Kofi Wangara, “African Perspective on History”, in John H. Johnson (editor and publisher), Black World, Volume 23 Number 4 (February 1974), http://books.google.com/books?id=ojkDAAAAMBAJ&pg=PA59&dq=contemporaneous page 59:

Then, if this script is deciphered, we will have in that respect the testimony of an African language which goes back 2,400 years, that is to say back to a period fairly contemporaneous with Latin and other languages of antiquity.

The Network Control Program (NCP) provided the middle layers of the protocol stack running on host computers of the ARPANET, the predecessor to the modern Internet. Although sometimes the abbreviation NCP is mistakenly expanded to Network Control Protocol, this term is not found in the contemporaneous documentation.

Preceded by a Simpsons short shot in 3-D—perhaps the only thing more superfluous than a fourth Ice Age movie—Ice Age: Continental Drift finds a retinue of vaguely contemporaneous animals coping with life in the post-Pangaea age.

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