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Calcium phosphate preservation of faecal bacterial negative moulds in hyaena coprolites

AutorPesquero, María Dolores ; Souza-Egipsy, Virginia ; Alcalá, Luis ; Ascaso, Carmen ; Fernández-Jalvo, Yolanda
Palabras claveBacteria
Hyaena coprolites
Structural preservation
Taphonomy
Miocene
Spain
Fecha de publicación2014
EditorInstitute of Paleobiology of Polish Academy of Sciences
CitaciónActa Palaeontologica Polonica 59(4): 997-1005 (2014)
ResumenThe vertebrate fossil locality of La Roma 2, Spain (Upper Miocene, Late Vallesian, MN10) is characterised by a high abundance of mammalian coprolites, which provide direct clues to the diets and habitats of the organisms that produced them. X-ray diffraction analysis showed a sample of hyaena (cf. Lycyaena chaeretis) coprolites to be mostly composed of calcium phosphate. Ultrastructural SEM and TEM studies revealed three successive phases of preservation, including an initial phase of mineralisation that produced microspherulites within a very fine-grained cement. This indicates that most of the calcium phosphate present in the coprolites precipitated rapidly, which in turn facilitated the formation of negative moulds of faecal bacteria within the coprolite matrix.
Versión del editorhttp://www.app.pan.pl/article/item/app20120067.html
URIhttp://hdl.handle.net/10261/113811
DOI10.4202/app.2012.0067
ISSN0567-7920
E-ISSN1732-2421
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