Nasal architecture in &lt;i&gt;Procynocephalus wimani&lt;/i&gt; (Early Pleistocene, China) and implications for its phyletic relationship with &lt;i&gt;Paradolichopithecus&lt;/i&gt;

Nishimura, Takeshi; Ito, Tsuyoshi; Yano, Wataru; Ebbestad, Jan Ove R.; Takai, Masanaru

doi:10.1537/ase.140624

Cited by 11 publications

(5 citation statements)

References 36 publications

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“…Even among closely related species, there are significant variations in sinus morphology (Zollikofer et al ., ; Ito et al ., ). Because of such significant interspecific variations, paranasal sinuses are increasingly considered important, as they are used as informative diagnostic characteristics for inferring the phylogenetic relationship between fossil and living species (Rossie et al ., ; Rae, ; Witmer & Ridgely, ; Nishimura et al ., ). However, the evolutionary implication of variation in paranasal sinuses remains elusive (Rae & Koppe, ; Márquez, ; Keir, ).…”

Section: Introductionmentioning

confidence: 97%

Maxillary sinus variation in hybrid macaques: implications for the genetic basis of craniofacial pneumatization

Ito

Kawamoto

Hamada

et al. 2015

Biol J Linn Soc Lond

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There has been a long‐standing debate regarding the diversification of paranasal sinuses, namely pneumatized spaces in the face. Functional adaptation and structural constraints have generally been suggested to explain sinus diversification in vertebrates. Here we investigated variation in the maxillary sinus and the external facial cranium in hybrid Taiwanese–Japanese macaques to estimate the genetic basis of phenotypic differences. The Taiwanese macaques have a large sinus, whereas the Japanese macaques have a small sinus; they are also significantly different in their external craniofacial morphology. Variations in the hybrids' external craniofacial morphology can be mostly explained by a simple additive model. In contrast, their sinus morphology significantly deviates from the value expected under this additive model, wherein most hybrids have a large sinus, similar to that in Taiwanese macaques, regardless of the degree of hybridization. When the whole structure is considered, a novel phenotype can be seen in the hybrids. Our results suggest that the sinus and face are independent of each other, both genetically and developmentally, and that the small sinus is mainly caused by intrinsic genetic factors, rather than being structurally constrained by the craniofacial architecture. Such genetic factors may have contributed to the enigmatic diversity of craniofacial pneumatization. © 2015 The Linnean Society of London, Biological Journal of the Linnean Society, 2015, 115, 333–347.

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Section: Introductionmentioning

confidence: 97%

Maxillary sinus variation in hybrid macaques: implications for the genetic basis of craniofacial pneumatization

Ito

Kawamoto

Hamada

et al. 2015

Biol J Linn Soc Lond

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“…The paranasal sinuses, including the maxillary sinus and the frontal sinus, are absent in most extant genera of Old World monkeys, Cercopithecoidea, while the maxillary sinus is always present in the genus Macaca and sometimes in Papio and Theropithecus (Koppe & Ohkawa 1999;Ito et al 2009Ito et al , 2014aNishimura et al 2014). Among the Cercopithecine fossils, the maxillary sinus is also found in extinct species of Macaca (Rae et al 2007;Ito et al 2009Ito et al , 2014b and in Paradolichopithecus sushkini from the Pleistocene of central Asia (Nishimura et al 2007), but not in Pa. arvernensis from Europe and Procynocephalus wimani from China, and probably not in Pa. gansuensis (Nishimura et al 2009(Nishimura et al , 2010(Nishimura et al , 2014. The paranasal sinuses are absent in all extant colobines from Africa and Asia so far studied (Koppe & Ohkawa 1999) (Nishimura et al 2012).…”

Section: Discussionmentioning

confidence: 99%

The Late Miocene colobine monkeys from Aragai (Lukeino Formation, Tugen Hills, Kenya)

et al. 2022

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“…As has been stressed by previous authors (e.g., Jablonski, 2002;Szalay & Delson, 1979) Procynocephalus and Paradolichopithecus show a mixture of outer cranial morphometric features between the mostly African Papio and the predominantly Eurasian Macaca (both extant taxa used in these studies as proxies of the morphological and phylogenetic divergences between the two main lineages of Papionini). Several studies (e.g., Jablonski, 2002;Nishimura et al, 2014;O'Shea et al, 2016;Rae, 2008;Szalay & Delson, 1979;Takai et al, 2008) suggest that external cranial morphology and inner nasal architecture of Paradolichopithecus exclude it from Papionina and place it closer to the crown lineage of Macaca. Resonant exceptions are the studies of Maschenko (1994Maschenko ( , 2005, who directly refers Paradolichopithecus from Kuruksay (Tajikistan) to the genus Papio.…”

Section: Discussionmentioning

confidence: 99%

Morphology of the Bony Labyrinth Supports the Affinities of Paradolichopithecus with the Papionina

et al. 2022

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Discoveries in recent decades indicate that the large papionin monkeys Paradolipopithecus and Procynocephalus are key members of the Late Pliocene – Early Pleistocene mammalian faunas of Eurasia. However, their taxonomical status, phylogenetic relationships, and ecological profile remain unclear. Here we investigate the two latter aspects through the study of the inner ear anatomy, as revealed by applying micro-CT scan imaging techniques on the cranium LGPUT DFN3-150 of Paradolichopithecus from the lower Pleistocene (2.3 Ma) fossil site Dafnero-3 in Northwestern Greece. Using geometric morphometric methods, we quantified shape variation and the allometric and phylogenetic signals in extant cercopithecines (n = 80), and explored the morphological affinities of the fossil specimen with extant taxa. LGPUT DFN3-150 has a large centroid size similar to that of baboons and their relatives. It shares several shape features with Macacina and Cercopithecini, which we interpret as probable retention of a primitive morphology. Overall, its inner ear morphology is more consistent with a stem Papionini more closely related to Papionina than Macacina, or to a basal crown Papionina. Our results, along with morphometrical and ecological features from previous studies, call into question the traditional hypothesis of a Paradolichopithecus-Macacina clade, and provide alternative perspectives in the study of Eurasian primate evolution during the late Neogene-Quaternary.

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Nasal architecture in <i>Procynocephalus wimani</i> (Early Pleistocene, China) and implications for its phyletic relationship with <i>Paradolichopithecus</i>

Cited by 11 publications

References 36 publications

Maxillary sinus variation in hybrid macaques: implications for the genetic basis of craniofacial pneumatization

Maxillary sinus variation in hybrid macaques: implications for the genetic basis of craniofacial pneumatization

The Late Miocene colobine monkeys from Aragai (Lukeino Formation, Tugen Hills, Kenya)

Morphology of the Bony Labyrinth Supports the Affinities of Paradolichopithecus with the Papionina

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