Of the total, 30 bodies have been identified by relatives, said state attorney Gerardo Octavio Solís at a press conference Sunday. There were 28 men and two women identified, he said.
The mass grave is located in El Salto municipality, southeast of state capital Guadalajara, in central Mexico.
A spokesman for the state attorney’s office told CNN the dig started on October 1 and excavation work continues.
Another mass grave is being excavated at Ixtlahuacán de los Membrillos, around 30 kilometers (18.6 miles) south of El Salto by road, where a further 25 bodies have been found.
Solís did not offer an explanation for the existence of the mass graves, but Jalisco state has seen rising violence in recent years.
Jalisco has also exhumed the