Identifying the use of tinder fungi among neolithic communities at la Draga

Identifying the use of tinder fungi among neolithic communities at la Draga
Sample of Ganoderma adspersum with signs of carbonization. Credit: la Draga team

Inhabitants of the Neolithic community at La Draga (Banyoles, Girona) used fungi to light or transport fires 7,300 years ago. The discovery represents one of the oldest examples of the technological use of fungi documented to date, and is the result of several archaeological interventions at the site, which also yielded an exceptional collection of fungi, unique in all of prehistoric Europe.

The study of this atypical set of remains, published recently in the journal PLOS ONE, was conducted by Marian Berihuete-Azorín (Hohenheim University), Josep Girbal (UAB), Raquel Piqué (UAB), Antoni Palomo (Museum of Archaeology of Catalonia) and Xavier Terradas (CSIC-IMF).

"Despite the use of fire being well documented, at the La Draga , we had not yet found proof of the materials used to light or transport it. Data gathered points to the majority of fungi recovered were selected, taken to the forest surrounding the site, dried and stored, with the intention of using them as tinder. In addition, it was evident in two of the samples we analysed that they were being used for this purpose, which proved our hypothesis," says Raquel Piqué, researcher at the UAB Department of Prehistory.

The site of La Draga is one of the exceptional examples for the study of archaeological remains under the phreatic level, and this has allowed researchers to recover up to 86 individual samples, some of them complete, and conduct a taxonomic study that verified the presence of six fungi species: Skeletocutis nivea, Coriolopsis gallica, Daedalea quercina, Daldinia concentrica, Ganoderma adspersum and Lenzites warnieri.

"Being able to recover these remains is extraordinary, given that their conservation as archaeological material is very difficult due to decomposition," says Antoni Palomo, research at the MAC and the UAB.

The majority of fungi recovered at La Draga are polypore, growing on dead tree trunks and parasitising living trees. They are non-edible species that have traditionally been used to light fires, and are therefore known as "tinder-fungi." Their woody structure makes them highly inflammable, and therefore ideal for starting and transporting fire. Species used for this purpose include Daedalea quercina, different kinds of Ganoderma, Coriolopsis gallica and Daldinia concentrica, all of them documented at La Draga. Tinder fungi were used to catch the sparks produced by striking flint against a mineral rich in ferric sulphide such as pyrite or marcasite. The researchers say that the discovery makes La Draga an exceptional example for the study of prehistoric fungi. The site produced a higher variety of fungi than others retrieved to date.

Until now, the few archaeological discoveries of fungi belonged to sites in northern and central Europe, and only in a few cases was it possible to demonstrate technological uses. One of the most important was at the Mesolithic site of Starr Carr in England, in which samples were also interpreted as having been intentionally transported in order to be used as tinder . Another notable example, but chronologically more recent than La Draga, are the remains transported by the iceman Ötzi as part of his equipment.

Importance of the Neolithic Site of La Draga

The samples are part of a set of discoveries made at the Neolithic site of La Draga, located at the eastern shore of Lake Banyoles. The settlement is one of the first enclaves where Neolithic farming societies decided to settle in the northeast of the Iberian Peninsula, about 7,300 years ago, transforming the surroundings in order to carry out the agricultural and livestock practices necessary for their subsistence. The most outstanding feature at the site is the conservation of elements built with wood and other organic materials, an exceptional feat for such an early society and which contributes to a more complete comprehension of these first farming societies of the westernmost Mediterranean.

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More information: Marian Berihuete-Azorín et al, Punk's not dead. Fungi for tinder at the Neolithic site of La Draga (NE Iberia), PLOS ONE (2018). DOI: 10.1371/journal.pone.0195846
Journal information: PLoS ONE

Citation: Identifying the use of tinder fungi among neolithic communities at la Draga (2018, April 27) retrieved 22 April 2019 from
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