The Maitum anthropomorphic burial jars are earthenware secondary burial vessels discovered in 1991 by the National Museum of the Philippines' archaeological team in Ayub Cave, Barangay Pinol, Maitum, Sarangani Province, Mindanao, Philippines. The jars are anthropomorphic; characterized by a design that suggests human figures with complete or partial facial features of the first inhabitants of Mindanao. Furthermore, they give emphasis to the Filipinos’ popular belief of life after death.
According to Eusebio Dizon, head of the archaeological team, this type of burial jars are "remarkably unique and intriguing" because they have not been found elsewhere in Southeast Asia. Thus, many archaeologists from Vietnam, Thailand, Malaysia, Laos, Cambodia, Burma and Indonesia gained interest on this initial find and a number of archaeological – either government or privately sponsored – excavations have been conducted to recover these artifacts.
These jars have characteristics that belong to the Developed Metal Age Period in the Philippines [calibrated date of 190 BC to 500 AD]. According to the laboratory results determined through radiocarbon dating, these secondary burial jars date back to the Metal Age. Two conventional dates were 1830 +/-60 B.P. [calibrated date of AD 70 to 370] and 1920 +/- 50 B.P. [calibrated date of 5 BC to 225 AD]. Experts used soot samples taken from the walls of a small earthenware vessel found inside one of the larger burial jars.
Discovery
thumb|[[Diorama of the positions of the burial jars in Ayub Cave]]
The information about “potteries bearing human forms encountered while treasure hunting for Pacific War treasures” was shared through a phone call, on June 3, 1991, between a consulting geologist named Michael Spadafora and an archaeologist named Eusebio Dizon. Three days after, the archaeologist received photographs of exceptional artifacts collected by local residents. The artifacts have high probability of significance not only to the history of Maguindanao, but also to the entire Philippine prehistory. That is why when they found a fund sponsor for Dizon's trip to Mindanao, he still went despite the unpredictable climate and safety risks.
The Maitum Archaeological Project of the National Museum team formally started on November 6, 1991. Ayub Cave, now referred to as Pinol Cave, is a Miocene limestone formation located approximately 1,000 meters due south of the Mindanao shoreline with an elevation of 6 meters. The site is on the coastal area of Pinol, Maitum (formerly a part of South Cotobato Province), Sarangani. The first phase of the excavation ended in December 1991, the second was from April 8 to May 3, 1992, and the third and final phase was from January 17 to February 15, 1995.
The conflict between the Armed Forces of the Philippines and the Moro Islamic Liberation Front (MILF) during the 70's resulted in irreversible casualties in this historical site. It threatened future discoveries and prevented preservation. No complete Maitum jar in the form of a female has survived, but there are still evidence of its existence such as the many pottery shards of female breasts. This is an indication of equality in terms of the practice of jar burials.
Altogether, a total of 29 burial jars and approximately 33 baskets or about 4 cubic meters of archaeological material have been collected.
Physical characteristics
thumb|Detail on a jar cover molded into a human head
Even though the burial jars are similar to that of the pottery found in Kulaman Plateau, Southern Mindanao and many more excavation sites here in the Philippines, what makes the Maitum jars uniquely different is how the anthropomorphic features depict “specific dead persons whose remains they guard”.
So far, there have been four classified kinds of cover and lid: (1) Anthropomorphic motif or head, (2) Trunconical with simple appliquéd design, (3) Simple ovaloid with four ear handles, and (4) Trunconical with adz shape and round spinning shape motif. While there are three types of heads: (1) Plain, (2) Perforated, and (3) Painted red and black from hematite and organic material. The black paint may indicate where the hair of the dead has once been.