The term pennsylvanian period is identified in base64 scheme by the sequence cGVubnN5bHZhbmlhbiBwZXJpb2Q=, while the MD5 signature is equal to 9df849a003ce1c5e54b1a0ae4216a238. The ASCII encoding of pennsylvanian period in hexadecimal notation is 70656e6e73796c76616e69616e20706572696f64.