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9.2-million-year-old rhino skull preserved by instant 'cooking to death' in volcanic ash

Date:
November 21, 2012
Source:
Public Library of Science
Summary:
Less than two percent of the earth's fossils are preserved in volcanic rock, but researchers have identified a new one: the skull of a rhino that perished in a volcanic eruption 9.2 million years ago.

The fossil, found in Turkey, is thought to be that of a large two-horned rhino common in the Eastern Mediterranean region during that period.
Credit: Reconstruction by Mava J. Orliac; Antoine et al. (2012) A Rhinocerotid Skull Cooked-to-Death in a 9.2 Ma-Old Ignimbrite Flow of Turkey. PLoS ONE doi:10.1371/journal.pone.0049997

Less than 2% of Earth's fossils are preserved in volcanic rock, but researchers have identified a new one: the skull of a rhino that perished in a volcanic eruption 9.2 million years ago.

The find is described in a paper published Nov. 21 in the open access journal PLOS ONE by Pierre-Olivier Antoine and colleagues from the University of Montpellier, France.

The fossil, found in Turkey, is thought to be that of a large two-horned rhino common in the Eastern Mediterranean region during that period. According to the researchers, unusual features of the preserved skull suggest that the animal was 'cooked to death' at temperatures that may have approached 500 C, in a volcanic flow similar to that of the eruption of Mt. Vesuvius in Italy in 79 A.D.

The rhino's grisly death was near-instantaneous, and followed by severe dehydration in the extreme heat of the eruption. As the researchers describe its end, "the body was baked under a temperature approximating 400C, then dismembered within the pyroclastic flow, and the skull separated from body." The flow of volcanic ash then moved the skull about 30 km north of the eruption site, where it was discovered by the four member research team.

Although other researchers have previously identified fossils of soft-bodied organisms preserved in volcanic ash, organic matter near an active volcanic eruption is usually quickly destroyed by the high temperatures, making a fossil such as this one extremely rare.


Story Source:

The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. Pierre-Olivier Antoine, Maeva J. Orliac, Gokhan Atici, Inan Ulusoy, Erdal Sen, H. Evren ubuku, Ebru Albayrak, Neşe Oyal, Erkan Aydar, Sevket Sen. A Rhinocerotid Skull Cooked-to-Death in a 9.2 Ma-Old Ignimbrite Flow of Turkey. PLoS ONE, 2012; 7 (11): e49997 DOI: 10.1371/journal.pone.0049997

Cite This Page:

Public Library of Science. "9.2-million-year-old rhino skull preserved by instant 'cooking to death' in volcanic ash." ScienceDaily. ScienceDaily, 21 November 2012. <www.sciencedaily.com/releases/2012/11/121121210251.htm>.
Public Library of Science. (2012, November 21). 9.2-million-year-old rhino skull preserved by instant 'cooking to death' in volcanic ash. ScienceDaily. Retrieved April 23, 2014 from www.sciencedaily.com/releases/2012/11/121121210251.htm
Public Library of Science. "9.2-million-year-old rhino skull preserved by instant 'cooking to death' in volcanic ash." ScienceDaily. www.sciencedaily.com/releases/2012/11/121121210251.htm (accessed April 23, 2014).

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