New dental remains of Anoiapithecus and the first appearance datum of hominoids in the Iberian Peninsula

Alba, David M.; Fortuny, Josep; Ríos, Miriam Pérez de los; Zanolli, Clément; Almécija, Sergio; Casanovas‐Vilar, Isaac; Robles, Josep M.; Moyà‐Solà, Salvador

doi:10.1016/j.jhevol.2013.07.003

Cited by 25 publications

(42 citation statements)

References 45 publications

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“…We studied 15 upper and lower molars of the following Miocene hominoids (Table 1 and 2): Pierolapithecus catalaunicus from ACM/BCV1 (IPS21350) [29], Anoiapithecus brevirostris from ACM/C3-Aj (IPS41712 and IPS43000) [30] and ACM/C1-E* (IPS35027) [74], Dryopithecus fontani from ACM/C3-Ae (IPS35026) [31]; Hispanopithecus ( Hispanopithecus ) crusafonti from CP1 (IPS1820, IPS1818, IPS1812 and IPS1821) and TF (MGSB25314) [75], [76]; and Hispanopithecus ( Hispanopithecus ) laietanus from CF (IPS34753) [77] and CLL1 (IPS1763, IPS1788, IPS1797 and IPS1800) [76], [78], [79]. The taxonomy employed for hominoids follows ref.…”

Section: Methodsmentioning

confidence: 99%

Dietary Specialization during the Evolution of Western Eurasian Hominoids and the Extinction of European Great Apes

2014

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Given the central adaptive role of diet, paleodietary inference is essential for understanding the relationship between evolutionary and paleoenvironmental change. Here we rely on dental microwear analysis to investigate the role of dietary specialization in the diversification and extinction of Miocene hominoids from Western Eurasian between 14 and 7 Ma. New microwear results for five extinct taxa are analyzed together with previous data for other Western Eurasian genera. Except Pierolapithecus (that resembles hard-object feeders) and Oreopithecus (a soft-frugivore probably foraging opportunistically on other foods), most of the extinct taxa lack clear extant dietary analogues. They display some degee of sclerocarpy, which is most clearly expressed in Griphopithecus and Ouranopithecus (adapted to more open and arid environments), whereas Anoiapithecus, Dryopithecus and, especially, Hispanopithecus species apparently relied more strongly on soft-frugivory. Thus, contrasting with the prevailing sclerocarpic condition at the beginning of the Eurasian hominoid radiation, soft- and mixed-frugivory coexisted with hard-object feeding in the Late Miocene. Therefore, despite a climatic trend towards cooling and increased seasonality, a progressive dietary diversification would have occurred (probably due to competitive exclusion and increased environmental heterogeneity), although strict folivory did not evolve. Overall, our analyses support the view that the same dietary specializations that enabled Western Eurasian hominoids to face progressive climatic deterioration were the main factor ultimately leading to their extinction when more drastic paleoenvironmental changes took place.

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Section: Methodsmentioning

confidence: 99%

Dietary Specialization during the Evolution of Western Eurasian Hominoids and the Extinction of European Great Apes

2014

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“…Compared to other fossil hominoids, on average, Oreopithecus shows thicker enamel than the dryopithecines reported so far (Alba et al, 2013). Interestingly, megadont fossil hominoids, such as Ouranopithecus, Paranthropus, Australopithecus and Gigantopithecus, show the relatively and absolutely thickest enamel, suggesting an allometric trend.…”

Section: Tooth Morphostructurementioning

confidence: 63%

“…and dentine horns enclosing a sub-concave occlusal basin commonly seen in fossil and extant hominoid molars, such as Ouranopithecus (Macchiarelli et al, 2009), Paranthropus and Australopithecus , Homo Skinner et al, 2008b;Zanolli, 2014;Zanolli and Mazurier, 2013), and in the living great apes (Skinner et al, 2008b(Skinner et al, , 2010. Assuming that Oreopithecus is closely related to the dryopithecines (Harrison and Rook, 1997;Moyà-Solà and Köhler, 1997), which almost invariably exhibit a low to only moderately elevated external crown topography (Alba et al, 2013;Begun, 2002), its tall occlusal reliefs could represent an autapomorphic feature developed under conditions of insular isolation. On the other hand, tall cusps could also represent the retention of a primitive feature, as seen in basal hominoids (Begun, 2002).…”

Section: Tooth Morphostructurementioning

confidence: 99%

Enamel thickness and enamel growth in Oreopithecus: Combining microtomographic and histological evidence

Zanolli

Dean

Rook

et al. 2016

Comptes Rendus Palevol

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a b s t r a c tOreopithecus bambolii, a large-bodied fossil ape, lived in the Tusco-Sardinian archipelago during the Late Miocene, until ca. 6.7 Ma. Its dentition, an apparent blend of hominoid and cercopithecoid-like features, has been a matter of discussion since its first description, in 1872. While the height and sharpness of its molar cusps recall some Cercopithecidae, Oreopithecus is currently considered by many as more likely related to dryopithecines. Here, we use microtomographic-based quantitative imaging and histological evidence to link outer and inner tooth structural morphology with enamel development in Oreopithecus permanent teeth. The material consists of 14 teeth/crowns from the sites of Baccinello and Casteani, in Tuscany, and Fiume Santo, in Sardinia. In particular, we add to the record of 2-3D of molar enamel thickness topographic variation and enamel-dentine junction morphology, and using high-resolution replicas of the outer crown and ground sections, comparatively assess molar growth trajectory (crown formation times and enamel extension rates). Our results shed new light on dental development of this "enigmatic anthropoid" and provide additional evidence concerning the still debated question of its evolutionary history.

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“…Martin for measurement procedure and standardization (Martin, 1985), the bi-three-dimensional assessment of tooth enamel thickness has become routine in taxonomic and adaptive/evolutionary studies of fossil and extant primates (e.g., Alba et al, 2013;Kono, 2004;Kono et al, 2014;Macchiarelli et al, 2004Macchiarelli et al, , 2009Macchiarelli et al, , 2013Olejniczak et al, 2008aOlejniczak et al, , 2008bOlejniczak et al, , 2008cOlejniczak et al, , 2008dPan et al, 2016;Skinner et al, 2015;Smith et al, 2003Smith et al, , 2005Smith et al, , 2011Smith et al, , 2012Suwa et al, 2009;Zanolli et al, 2015Zanolli et al, , 2016a. Commonly used to infer durophagy and considered as a proxy of the dietary niches exploited by extinct species (e.g., Constantino et al, 2011Constantino et al, , 2012Lucas et al, 2008;Martin et al, 2003;Schwartz, 2000a;Teaford, 2007;Teaford and Ungar, 2015;Vogel et al, 2008), occlusal enamel thickness is seen as intimately related to dietary abrasiveness and selectively responsive to lifetime dental wear resistance (Pampush et al, 2013;Rabenold and Pearson, 2011).…”

Section: Introductionmentioning

confidence: 99%

Is the deciduous/permanent molar enamel thickness ratio a taxon-specific indicator in extant and extinct hominids?

Zanolli

Bayle

Bondioli

et al. 2017

Comptes Rendus Palevol

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Handled by Roberto Macchiarelli and Clément ZanoliiKeywords: Enamel Dm2 M1 "Diphyodontic index" Hominids abstract In Primates, enamel thickness variation stems from an evolutionary interplay between functional/adaptive constraints (ecology) and the strict control mechanisms of the morphogenetic program. Most studies on primate enamel thickness have primarily considered the permanent teeth, while the extent of covariation in tooth enamel thickness distribution between deciduous and permanent counterparts remains poorly investigated. In this test study on nine extant and fossil hominids we investigated the degree of covariation in enamel proportions between 25 pairs of mandibular dm2 and M1 by a so-called "lateral enamel thickness diphyodontic index". The results did not provide an unambiguous picture, but rather suggest complex patterns likely resulting from the influence of many interactive factors. Future research should test the congruence of the "diphyodontic signal" between the anterior and the postcanine dentition, as well as between enamel and the enamel-dentine junction topography.

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New dental remains of Anoiapithecus and the first appearance datum of hominoids in the Iberian Peninsula

Cited by 25 publications

References 45 publications

Dietary Specialization during the Evolution of Western Eurasian Hominoids and the Extinction of European Great Apes

Dietary Specialization during the Evolution of Western Eurasian Hominoids and the Extinction of European Great Apes

Enamel thickness and enamel growth in Oreopithecus: Combining microtomographic and histological evidence

Is the deciduous/permanent molar enamel thickness ratio a taxon-specific indicator in extant and extinct hominids?

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