New strepsirrhine primate from the late Eocene of Peninsular Thailand (Krabi Basin)
Bibliographic Data
| ID | 8315232 |
|---|---|
| Authors | Laurent Marivaux (0000-0002-2882-0874, Centre National de la Recherche Scientifique, corresponding author), Yaowalak Chaimanee (0000-0002-8432-3880), Paul Tafforeau (0000-0002-5962-1683, European Synchrotron Radiation Facility), Jean‐jacques Jaeger (0000-0001-8654-5340, Centre National de la Recherche Scientifique), Jean-Jacques Jaeger |
| Year | 2006 |
| Volume | 130 |
| Issue | 4 |
| Pages | 425-434 |
| Publication date | 2006-08-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | American Journal of Physical Anthropology (JOURNAL) |
| Journal identifiers | ISSN: 0002-9483 • E-ISSN: 1096-8644 |
| Publisher | Wiley (PUBLISHER • GB) |
| DOI | 10.1002/ajpa.20376 |
| PMID | 16444732 |
| OpenAlex | W2006247777 |
| Language | EN |
| Citations received | 5 |
| References cited | 24 |
In this paper, we describe the newly discovered lower jaw of a primate from the late Eocene Krabi coal mine (Bang Mark pit) of Peninsular Thailand. We performed microtomographic examinations at the European Synchrotron Radiation Facility (ESRF, Grenoble, France) to analyze different morphological aspects of the jaw and teeth. Although partially preserved, this fossil mandible reveals a set of distinctive dental traits (e.g., double-rooted P(2) and molarized P(4)) that allow us to describe a new stepsirrhine adapiform: Muangthanhinius siami, new genus and species. This taxon is somewhat atypical among Paleogene adapiforms, and more specialized than the sivaladapid adapiforms (hoanghoniines) that existed in Asia in the same epoch. In fact, Muangthanhinius shows a degree of dental specialization approximating that of some modern strepsirrhine lemuriforms, although it lacks the highly specialized anterior dentition characterizing this living primate group (canine + incisors forming a very procumbent toothcomb). In contrast, Muangthanhinius exhibits a large canine deeply anchored within the dentary that probably protruded high above the toothrow. Finally, despite the development of a molarized P(4) as in Miocene sivaladapid sivaladapines, Muangthanhinius differs in molar morphology from this group, and the position of this new taxon within the Adapiformes remains indeterminate. Clarification of its phylogenetic position will require more morphological evidence than is currently available
Biology · Dentition · Evolutionary biology · Genus · Morphology (biology) · Paleogene · Primate · Structural basin · Taxon · Zoology · Amphibian and Reptile Biology · Evolution and Paleontology Studies · Paleontology · Primate Behavior and Ecology
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| Unique citing works | 5 |
|---|---|
| Citations per year | 0,26 |
| Citation span | 2007 - 2023 (17) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 5 |