At first, I thought that was a faked photo, so weird did the dog look!
I notice in the same article they were talking about a "canine Samson"--a Dane/Newfoundland cross that was 37 inches at the shoulder and 276 pounds. While unquestionably a huge dog, he is far from the record. I believe the record for height is (or was) held by a Great Dane that was 42 or 43 inches at the withers, and the record for weight was an English Mastiff named Zorba that was 345 pounds at his peak. I have seen English Mastiffs in the 260+ pound range, and they are imposing indeed.