Is Acrobat DC2015 or other previous versions available to creative cloud team members?

Creative Cloud for Teams is designed to deliver the latest version of Acrobat - and the Desktop App or Creative Cloud Packager will only deliver that version. 

Acrobat has what we call continuous and classic tracks - the first is designed for named-user deployment and the second for perpetual licenses with serialised deployment.

Creative Cloud for Teams is always Continuous and no serial number is available.

Continuous will deliver the latest version. The Classic 2015 installers are here - Download Pro or Standard versions of Acrobat DC | Non-subscription

I don't know, but the process is below... IF that version is available

How to get previous using a Cloud subscription https://forums.adobe.com/thread/2372985

-an option to check to see more previous https://forums.adobe.com/thread/2426726

-and more on previous versions https://forums.adobe.com/thread/2389056 see reply #3

-and even more on previous versions https://forums.adobe.com/thread/2409527 see reply #1