Actor, clown. He attended elementary school in his hometown. He became known as Diamante Negro when he started performing lasso and whips, knife throwing, fire eating, stilts, magic and ladder acts. Throughout his life, he was always forced to work in other professions, but the circus always found a way back to him. In 1957, Circo Teatro Estrela Azul (owned by Wilson Paracampos, known as Canelas) came to his town. In order to earn some money he started working at the circus and was in charge of purchasing food and other necessities for the crew and animals during the season. Other circuses also came to town such as Circo Peruano (owned by the Alvarado family) where he met Orlando Azevedo; Circo Olímpico (owned by Alfredo Silva) and Circo Bartholo. When he was thirteen years old, he and his family moved to Palmatória, northern Rio de Janeiro, because his father, who was a cabouqueiro (person who work in mines and quarries), went to work on a farm. One day, he heard a man announcing with a microphone in a car, the last show of Circo Real Argentino (owned by Antonio França and Vital). He went to the circus in hope to find a job, and told the owner that he knew Canelas and Orlando Azevedo when they came to town. At this circus there were two tent masters: Velho Alvino and Tresquino. While he was working for Gran Circo Real Argentino, he also got to know the artists from the Circo Cao Polican, which was arriving in town at the time. After four years, he gave up the circus life and went on to work for a landscaping company in the State of Rio de Janeiro. In 1957, he was working on a sugar cane farm when he once more heard someone announcing the arrival of Circo Orlando Azevedo. This man was the owner and the same artist he met years before who taught him fakir acts. It was in that moment, Jamelão decided to became a circus artist. He went on to perform at London Circus and California (owned by Detefon), Circo Teatro Jurema (owned by Jurema and Milton Pernilongo), Jorge Botinha and Derci, Canelas and Dalva (renamed as Circo Teatro Rosana, in homage to their first daugjter), Irmãos Marques (owned by Antonio and Jair Marques), Giglio (owned by Tuta), Fantástico (owned by Pilombeta) and Panamericano (owned by Charles Barry). From 1977 to 1984, he performed circus acts and was also the tentmaster and stagehand at Circo Garcia.  Since 1984, he has been working for the National Circus School in Rio de Janeiro. Jamelão married Cheila Adriana Vitorino Teixeira. They had five children, but only two survived: Aparecida Neiva Teixeira Nasccimento and Rogersson William, both live in Sweden and work at amusement parks.