I just partitioned my NTFS drive with Time Machine: Help!

I'm back to using a Mac after 15 years so I really messed up.  I have a MacBook Pro (15" mid 2009) 2.66 Intel Core 2 Duo with OS X Yosemite 10.10.2 and a Seagate 4TB External that was formatted using Windows 7 OS, I think NTFS. I traded for the MacBook Pro and they were using Time Machine to backup.
I started Time Machine thinking I could just copy the data on the drive I was already using and zipped through the wizard like an idiot when it asked me if I wanted to erase the IOMEGA_HD  not the Seagate 4TB External I said sure and it popped up saying it was partitioning the Seagate 4TB External.  I freaked out and pulled the USB cable out of the laptop making a bad situation possibly worse.
Now here it sits with a Mac OS partition that's unreadable from either a Mac or a PC.  I don't want to do anything to further damage it before I asked some experts how to tackle this.  If I left anything out please ask, I'll be watching this thread closely. Thanks in advance for any help guys!

I think you probably wiped the partition table and that your data is still there and can be recovered.
As I said, search on various Linux forums. Any useful way of recovering your data there will very likely be available for Mac OS X. The only exception is that, if you have to rebuild the partition table, which was in NTFS, it may not be supported by any "authenticate" Mac OS X applications (i.e., what you will find in the App Store -- meanwhile, you'll get "scary" warnings from OS X when you try to run any third-party software from the Internet -- I can't tell you how to respond to those or my post may get disregarded) because it (NTFS) is a proprietary format of Microsoft. However, tons of people running Linux had to first conquer Windows (and NTFS!), so I'm sure you'll find a solution in that realm. And if there isn't a port for it for OS X, then at least you have a free solution, if you can manage to get Linux running on something (even a Virtual Machine within OS X, such as VirtualBox).

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