Mata Menge

Mata Menge is an early Middle Pleistocene paleoanthropological site located in the Ola Bula Formation in the So'a Basin on the island of Flores, Indonesia. Lithic artefacts and hominin remains have been discovered at the site. The level of sophistication of the Mata Menge lithic artefacts is described as being 'simple'.[4]

Mata Menge
Mata Menge is located in Indonesia
Mata Menge
Shown within Indonesia
LocationFlores, Indonesia
RegionSo'a Basin
Coordinates8°41′31″S 121°05′43″E
Typeopen-air site
History
Periodsearly Middle Pleistocene
Site notes
Excavation dates1991-1992,[1] 1994,[1] 2004-2009,[2] 2010-2012,[3] 2013-2019
ArchaeologistsTheodor Verhoeven, Mike Morwood

Excavations

Excavation Timeline Excavators Recovered Items &

Remains

Animal
1957-1970[5] Theodor Verhoeven Stone artifacts Stegodon florensis
1992-1994[5] Indonesian-Dutch Team Stone artifacts Stegodon florensis, Rat,

Crocodile

1997[5] Indonesian-Australian Team - Stegodon florensis
2004-2009[5] Indonesian-Australian Team Stone artifacts mixed faunal remains
2010-2012[6] Indonesian-Australian Team led by Mike Morwood Stone artifacts mixed faunal remains
2013-ongoing[6][7][8][9][10] Indonesian-Australian Team Hominin fossils & stone artifacts Mixed faunal remains

Stone Artifacts

Stone artifacts make up the majority of what has been recovered from Mata Menge, most of the stone artifact evidence points towards use by the hominin H. floresiensis. The excavation by the Indonesian-Australian team in the period between 2004 and 2009 saw the excavation of over 507 stone artifacts.[11] The stone artifacts were compared to others recovered in the 1994 excavation done by the Indonesian-Dutch team. The assemblage is regarded as the most reputable and well-handled set of Early Pleistocene items found on a southeast Asian Island.[12][11]

The stone tool artifacts found at the site were made using the simple method of breaking off smaller flakes from what is called a "core", essentially a larger piece of stone that is formed into one or multiple different tools. Volcanic materials were believed to have been used for these types of stone tools and due to the environmental history of the area, these materials were in abundance.[11] Other material items found at the site were 27 fine-grained chert, 13 chalcedony, and 4 chlorite as well as 4 opal artifacts.[11]

The majority of the flakes left behind from the core stones were believed to have been ignored after they were broken from the main piece, but some evidence of smaller ware on the larger flakes found could indicate the flakes being used as more precise tools, and evidence-based on the stone cores show the tools being made in one place and then carried with the hominin to another.[11]

The evidence provided by the stone tools opened the possibility of hominin activity at Mata Menge. The similarities of the stone artifacts found at the Mata Menge site compared to those found at the Liang Bua site were close enough to consider evidence of H. floresiensis at Mata Menge as well.[11] Later on, this would be confirmed in the 2014 excavation where hominin remains were found from a layer 10 meter higher in the sequence.[7]

Faunal Remains

The fossil remains of Stegodon florensis, Hooijeromys, Varanus komodoensis, crocodile, various birds[10] and freshwater mollusks were also unearthed, from both fossil-bearing intervals at Mata Menge.[9][1]

Hominin fossils

In October 2014, the fossil remains of an early hominin were discovered at the site in the upper fossil-bearing interval at Mata Menge.[13] A mandible and six teeth were discovered.[6] The hominin fossils belonged to at least three distinct individuals, including 2 children.[6] The hominin fossils were dated to around 700,000 BP,[8][3] making the Mata Menge fossils the oldest hominin fossils yet discovered on the island of Flores.[13] The fossils at Mata Menge are likely to belong to hominins that resulted from the effects of insular dwarfism working on Homo erectus.[13]

47 lithic artefacts were discovered in the layer containing the hominin fossils.[3] The remains of Stegodon florensis, Hooijeromys, Komodo dragon and crocodile were also discovered in the layer associated with the hominin fossil remains.[3]

Comparison to H. floresiensis

Hominin fossils at Mata Menge, in particular the mandible, are smaller than those of Homo floresiensis.[13] The size and shape of the teeth of the Mata Menge fossils are similar to those of H. floresiensis, but the Mata Menge fossils are more primitive.[13] The lithic artefacts at Mata Menge also show cultural similarities to those found at Liang Bua.[14][13][3] The similarities in lithic artefacts and hominin fossil remains suggest that the hominins at Mata Menge were likely ancestral to H. floresiensis.[13]

Environmental Effects at Mata Menge

Volcanic Activity

Evidence from Mata Menge suggests that the area saw much volcanic activity that has affected items found at the excavation sites over the years. During successive excavations at Mata Menge, principal investigator Gert van den Bergh and colleagues determined that fluvial fossil-bearing Layer II of the site was covered by a more than 6 m thick interval of clay-rich mudflow deposits.[9][8] The artifacts, faunal remains, including those being hominin in origin are believed to have been exposed at the surface for some time due to evidence of weathering, before then, being moved by a small stream and subsequently rapidly covered by a succession of mud flows overtime.[9][8] These mudflows may have been caused by volcanic activity inside the Welas Caldera to the north of Mata Menge, in which a lake had formed.[9][8]

References

  1. Morwood 1997.
  2. Brumm 2009.
  3. Brumm 2016.
  4. Brumm, Adam; Aziz, Fachroel; et al. (Jun 1, 2006). "Early stone technology on Flores and its implications for Homo floresiensis". Nature. 441 (7093): 624–8. doi:10.1038/nature04618. PMID 16738657.
  5. Van den Bergh, Gert; Kurniawan, Iwan; Morwood, M.; Lentfer, C.; Suyono, Suyono; Setiawan, Ruly; Aziz, F. (2009-09-01). "Environmental reconstruction of the Middle Pleistocene archaeological/palaeontological site Mata Menge, Central Flores, Indonesia". Pleistocene Geology, Palaeontology and Archaeology of the Soa Basin, Central Flores, Indonesia: 59–94.
  6. van den Bergh, Gerrit D.; Kaifu, Yousuke; Kurniawan, Iwan; Kono, Reiko T.; Brumm, Adam; Setiyabudi, Erick; Aziz, Fachroel; Morwood, Michael J. (2016-06). "Homo floresiensis-like fossils from the early Middle Pleistocene of Flores". Nature. 534 (7606): 245–248. doi:10.1038/nature17999. ISSN 1476-4687
  7. Kurniawan, Adam Brumm, Gerrit D. 'Gert' van den Bergh and Iwan (2016-06-08). "Why the new fossils shed light on evolution of Flores 'hobbits'". The Guardian. Retrieved 2022-06-02.{{cite web}}: CS1 maint: multiple names: authors list (link)
  8. Brumm, Adam; van den Bergh, Gerrit D.; Storey, Michael; Kurniawan, Iwan; Alloway, Brent V.; Setiawan, Ruly; Setiyabudi, Erick; Grün, Rainer; Moore, Mark W.; Yurnaldi, Dida; Puspaningrum, Mika R. (2016-06-08). "Age and context of the oldest known hominin fossils from Flores". Nature. 534 (7606): 249–253. doi:10.1038/nature17663. ISSN 0028-0836. PMID 27279222. S2CID 28608179.
  9. van den Bergh, Gerrit D.; Alloway, Brent V.; Storey, MIchael; Setiawan, Ruly; Yurnaldi, Dida; Kurniawan, Iwan; Moore, Mark W; Jatmiko; Brumm, Adam; Flude, Stephanie; Sutikna, Thomas; Setiyabudi, Erick; Prasetyo, Unggul W.; Puspaningrum, Mika R.; Yoga, Ifan (14 September 2022). "An integrative geochronological framework for the Pleistocene So'a Basin (Flores, Indonesia), and its implications for faunal turnover and hominin arrival". Quaternary Science Reviews. 294: 1–41 via Elsevier Science Direct.
  10. Meijer, H.J.M.; Kurniawan, I.; Setiabudi, E.; Brumm, A.; Sutikna, T.; Setiawan, R.; van den Bergh, G.D. (December 2015). "Avian remains from the Early/Middle Pleistocene of the So'a Basin, central Flores, Indonesia, and their palaeoenvironmental significance". Palaeogeography, Palaeoclimatology, Palaeoecology. 440: 161–171. doi:10.1016/j.palaeo.2015.08.042. ISSN 0031-0182.
  11. Brumm, Adam; Aziz, Fachroel; van den Bergh, Gert D.; Morwood, Michael J.; Moore, Mark W.; Kurniawan, Iwan; Hobbs, Douglas R.; Fullagar, Richard (June 2006). "Early stone technology on Flores and its implications for Homo floresiensis". Nature. 441 (7093): 624–628. doi:10.1038/nature04618. ISSN 0028-0836. PMID 16738657. S2CID 4396093.
  12. Brumm, Adam; Moore, Mark W.; van den Bergh, Gert D.; Kurniawan, Iwan; Morwood, Michael J.; Aziz, Fachroel (2009). "Stone technology at the Middle Pleistocene site of Mata Menge, Flores, Indonesia". Journal of Archaeological Science. 37 (3): 451–473. doi:10.1016/j.jas.2009.09.012. ISSN 0305-4403.
  13. van den Bergh 2016.
  14. Brumm 2006.

Bibliography

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