[Bonetools] Strange holes in the bones

[Christian Küchelmann]

Dear Therese,

seconding Eva, I am not sure if the holes you showed cannot be  
natural. They look very much like boreholes of insect larvae to me  
(most probably dermestid beatles). See the following references for  
comparable traces and also a picture below:

Britt, Brooks B. / Scheetz, Rodney D. / Dangerfield, Anne (2008): A  
Suite of Dermestid Beetle Traces on dinosaur Bone from the Upper  
Jurassic Morrison Formation, Wyoming, USA

BEHRENSMEYER, ANNA KAY (1978): Taphonomic and ecologic information  
from bone weathering. - Paleobiology 4(2), 150-162, Chicago

Keiler, John Albrecht (2002): Bedeutende Fossilvorkommen des Quartärs  
in Thüringen. Teil 3: Insekten. – Beitrage Geologie Thüringen Neue  
Folge 9, 173-186

Martin, Larry D. & West, Dixie L. (1995): The recognition and use of  
dermetsid (Insecta, Coleoptera) pupation chambers in paleoecology. –  
Palaeogeography, Palaeoclimatology, Palaeoecology 113, 303-310

TOBIEN, HEINZ (1965): Insekten-Fraßspuren an tertiären und  
pleistozänen Säugetier-Knochen. - Senckenbergiana lethaea 46a,  
441-451, Frankfurt (Main)

Best

Christian
--
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Hans Christian Küchelmann
Diplom-Biologe

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Am 29.09.2013 um 18:42 schrieb Therese Ekholm:

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> To whom it may concern
>
> My name is Therese Ekholm and I am a PhD student at Uppsala  
> University. I have some questions and I hope you can help me. In  
> the osteological material that I work with I found some strange  
> holes in the bones that can not be natural. The material is burnt  
> and the pieces of bones are very small in general and the bones  
> with holes are about one centimeter. The holes, that seem to be  
> drilled, are one to one and a half millimeters. The sides of the  
> holes are not damaged and do not have any traces of wear and tear.  
> All of them are drilled from the outer surface but not all of them  
> are drilled all the way through the bone. Do you have an idea of  
> what it can be? I send you some photos but I could only make them  
> black and white with the microscope. The site is dated to around  
> 7000 BC and it is not very common to find bones in that area,  
> especially worked bones.
>
>
>
> Sincerely
> Therese Ekholm
>
> <Löpnr 3 något ljusare.jpg><Löpnr 3.jpg><Löpnr 15.jpg><Löpnr 33  
> snett.jpg><Löpnr 33.jpg>
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