They nominated Prime Minister Sheikh Sabah al-Ahmad al-Sabah to replace Sheikh Saad al-Abdullach al-Sabah, who replaced the late Sheikh Jaber al-Ahmad al-Sabah.
Ziad al-Saad, head of Jordan's antiquities department, has said this could be the biggest find since the Dead Sea Scrolls in 1947.
Parliament speaker Saad al-Katatni, of the Muslim Brotherhood, said the declaration was "null and void".
Members of parliament met for their brief session before it was adjourned by Speaker Saad al-Katatni.
Saad al-Hilli, 50, was shot with his wife Iqbal, 47, his mother-in-law and a cyclist near Annecy.
BBC: French Alps murders: Uncle's concerns over police probe
Saad al-Hilli, 50, from Surrey, was found dead in his car, along with his wife and her 74-year-old mother.
Investigators in France and the UK have been examining Saad al-Hilli's business interests.
BBC: French Alps murders: Victim had money worries over home
The company was recently bought by defence giant EADS, which has raised questions among conspiracy theorists that Saad al-Hilli's murder was work-related.
BBC: French Alps murders: Victim had money worries over home
Saad al-Hilli and his wife Iqbal from Claygate, Surrey, her mother Suhaila al-Allaf and French cyclist Sylvain Mollier were shot on 5 September.
Saad al-Katatni, leader of the Muslim Brotherhood's Freedom and Justice Party, described the meeting as "historic" and stressed the need for continued dialogue.
Saad al-Nifoos, and the Sunni tribal official, Sheik Hamad al-Jibouri, survived.
Saad al-Hilli, 50, from Claygate in Surrey, was shot dead along with his wife, mother-in-law and a cyclist near Chevaline, Lake Annecy, on 5 September.
BBC: Alps al-Hilli family murders: Man charged in fraud inquiry
"The main objective of Arabsat is to provide communications infrastructure in (the) Arab world by providing state-of-the- art telecommunications services both in quality and quantity, " Saad Al Bidnah, Arabsat director general told a prelaunch news conference.
CNN: Ariane rocket blasts into space, launches two satellites
"I am deeply shocked and saddened to confirm that one of SSTL's long-term contractors, Saad Al-Hilli, has been formally identified as one of the victims of the shootings which occurred in the French Alps, " he said.
According to U.S. documents and officials, in addition to Abu Ghaith, other members of bin Laden's inner circle ended up in Iran, including the formidable military commander of al Qaeda, Saif al-Adel, and Saad bin Laden, one of the al Qaeda leader's older sons who has played some kind of leadership role in the group.
According to U.S. documents and officials, in addition to Abu Ghaith, other members of bin Laden's inner circle ended up in Iran, including the formidable military commander of al Qaeda, Saif al-Adel, and Saad bin Laden, one of the al Qaeda's leader older sons who has played some kind of leadership role in the group.
Amin Saad Muhammad al-Zumari Born: Saudi Arabia Or Yemen, 1968 Nationality: Yemeni.
NPR's Saleem al-Shimiri(ph) contributed to that piece, as did NPR's Saad Qasim.
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