Since your coins came from bounties, they are new and most likely not in coinmarketcap. Once they got listed there or the owner submit it on Eidoo, it will automatically recognized by the wallet.
Going back to your question, it is possible to access your wallet using your 12 word back up phrase or your private key. For a complete guide on how to retrieve your eidoo private key, visit
https://medium.com/eidoo/how-to-backup-eidoo-private-keys-ce2a7ebdae7f