Transformation of Hydroxyapatite of Bone Phosphate from the Ocean Bottom during Fossilization

Nemliher, Jüri; Baturin, G. N.; Kallaste, Toivo; Murdmaa, I. O.

doi:10.1023/b:limi.0000040736.62014.2d

Cited by 41 publications

(31 citation statements)

References 12 publications

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“…Modification of the mineral composition of fossil bones (e.g., presence of authigenic calcite) from the Escuminac Formation has been previously reported in the placoderm Bothriolepis canadensis and the osteolepiform Eusthenopteron foordi [36]. Bioapatites usually display small particle sizes and significant carbonate contents [15,52]. In addition, apatite particles in bones of living animals are coated by a poorly-ordered hydrous phosphatic phase [53] and associated with organic polymers (collagen), which transform [54] or decay after an animal's death [55].…”

Section: Preservation Versus Recrystallization Of Triazeugacanthus Timentioning

confidence: 94%

“…Transformation of bioapatite to carbonate-fluorapatite can occur in low-temperature environments and has been reported in marine or continental fossil deposits [14,28,52,61]. It however depends on the F supply.…”

Section: Preservation Versus Recrystallization Of Triazeugacanthus Timentioning

confidence: 99%

“…In addition, apatite particles in bones of living animals are coated by a poorly-ordered hydrous phosphatic phase [53] and associated with organic polymers (collagen), which transform [54] or decay after an animal's death [55]. In contrast, carbonate-fluorapatite is less soluble than bioapatite [26,54] and often represents an ultimate stage of recrystallization of biomineralized anatomical structures in geological environments [26,28,52,54,56]. Carbonate-fluorapatite also occurs in sedimentary environments as an authigenic mineral, likely produced from the bacterial decay of organic matter [57][58][59][60].…”

Section: Preservation Versus Recrystallization Of Triazeugacanthus Timentioning

confidence: 99%

See 2 more Smart Citations

New Insights in the Ontogeny and Taphonomy of the Devonian Acanthodian Triazeugacanthus affinis From the Miguasha Fossil-Lagerstätte, Eastern Canada

2015

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Progressive biomineralization of a skeleton occurs during ontogeny in most animals. In fishes, larvae are poorly mineralized, whereas juveniles and adults display a progressively more biomineralized skeleton. Fossil remains primarily consist of adult specimens because the fossilization of poorly-mineralized larvae and juveniles necessitates exceptional conditions. The Miguasha Fossil-Lagerstätte is renowned for its Late Devonian vertebrate fauna, revealing the exceptional preservation of fossilized ontogenies for 14 of the 20 fish species from this locality. The mineralization of anatomical structures of the acanthodian Triazeugacanthus affinis from Miguasha are compared among larval, juvenile and adult specimens using Energy Dispersive X-ray Spectrometry. Chemical composition of anatomical structures of Triazeugacanthus reveals differences between cartilage and bone. Although the histology and anatomy is well-preserved, Fourier transform infrared spectrometry shows that the original chemical composition of bone is altered by diagenesis; the mineral phase of the bone (i.e., hydroxyapatite) is modified chemically to form more stable carbonate-fluorapatite. Fluorination occurring in mineralized skeletal structures of adult Triazeugacanthus is indicative of exchanges between groundwater and skeleton at burial, whereas the preservation of larval soft tissues is likely owing to a rapid burial under anoxic conditions. The exceptional state of preservation of a fossilized ontogeny allowed us to characterize chemically the progressive mineralization of the skeleton in a Devonian early vertebrate.

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Section: Preservation Versus Recrystallization Of Triazeugacanthus Timentioning

confidence: 94%

Section: Preservation Versus Recrystallization Of Triazeugacanthus Timentioning

confidence: 99%

Section: Preservation Versus Recrystallization Of Triazeugacanthus Timentioning

confidence: 99%

See 1 more Smart Citation

New Insights in the Ontogeny and Taphonomy of the Devonian Acanthodian Triazeugacanthus affinis From the Miguasha Fossil-Lagerstätte, Eastern Canada

2015

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“…The standard used was NBS 120c Florida phosphate rock that showed a value of 21.13±0.51%o (VSMOW) (n=12). Vennemann and Hegner (1998) alogy when dealing with osseous samples, in contrast with that of fluorapatite, regarded as the altered mineralogy (Hubert et al, 1996;Kolodny et al, 1996;Grimes et al, 2003;Nemliher et al, 2004). Based upon this evidence it can be argued that the Somosaguas samples retain a reliable geochemical signal, affected at most only by a low degree of diagenetic alteration.…”

Section: Methodsmentioning

confidence: 99%

Multiproxy reconstruction of the palaeoclimate and palaeoenvironment of the Middle Miocene Somosaguas site (Madrid, Spain) using herbivore dental enamel

Domingo¹,

Cuevas-González²,

Grimes³

et al. 2009

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…The content of F in biological hydroxylapatite is timedependent and during diagenesis the change from dahllite-type (\1 wt% F) to francolite-type ([1 wt% F) is accompanied by an increase in crystal size and stability (LeGeros and Suga 1980;Nemliher et al 2004;Greene et al 2004). It is assumed that F is completely incorporated into the hydroxylapatite structure (Nemliher et al 2004).…”

Section: Fluorinementioning

confidence: 99%

Compositional changes in fish scale hydroxylapatite during early diagenesis; an example from an abandoned meander

et al. 2009

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The chemistry of recent fish scales (tench, common carp, amur and European perch) and subrecent fish scales (European perch and mostly taxonomically not determined) was studied by means of laser ablation inductively coupled plasma mass spectrometry and electron microprobe from shallow boreholes in the abandoned meander Certak near Uherské Hradiste. A detailed study of subfossil fish confirms extremely rapid changes in the chemical composition of hydroxylapatite during very early diagenetic processes in the first 2 years, which does not change significantly in the bottom of the boreholes about 25 years old. While there is an enormous increase in Na, K, Ba and Sr, Fe and Mn, there is a major decrease in Mg. The fish scales from 70 to 78 cm (6-8 years old) are approaching already the level of francolite-type hydroxylapatite. The high Na content indicates carbonate substitutions for OH or PO 4 group. Consequently, environmental interpretations based on the chemistry of fossil hydroxylapatites require extreme caution. In recent fish scales, the element concentrations reflect not only the position in the trophic pyramid but also a complicated interplay of the diet, physiological processes and environmental contamination.

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Transformation of Hydroxyapatite of Bone Phosphate from the Ocean Bottom during Fossilization

Cited by 41 publications

References 12 publications

New Insights in the Ontogeny and Taphonomy of the Devonian Acanthodian Triazeugacanthus affinis From the Miguasha Fossil-Lagerstätte, Eastern Canada

New Insights in the Ontogeny and Taphonomy of the Devonian Acanthodian Triazeugacanthus affinis From the Miguasha Fossil-Lagerstätte, Eastern Canada

Multiproxy reconstruction of the palaeoclimate and palaeoenvironment of the Middle Miocene Somosaguas site (Madrid, Spain) using herbivore dental enamel

Compositional changes in fish scale hydroxylapatite during early diagenesis; an example from an abandoned meander

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