NEW DATA ON STIFF-TAILED DUCK EVOLUTION AND DISPERSAL FROM A NEW SPECIES OF DIVING DUCK (ANSERIFORMES: ANATIDAE: CF. OXYURINAE) FROM THE MIOCENE HIGH ROCK CALDERA IN NORTH-WEST NEVADA, USA

doi:10.1002/spp2.1029

IVPP-IR > 中科院古脊椎所（2000年以后）

	NEW DATA ON STIFF-TAILED DUCK EVOLUTION AND DISPERSAL FROM A NEW SPECIES OF DIVING DUCK (ANSERIFORMES: ANATIDAE: CF. OXYURINAE) FROM THE MIOCENE HIGH ROCK CALDERA IN NORTH-WEST NEVADA, USA
	Stidham, Thomas A.1; Hilton, Richard P.2,3
	2016-02-01
发表期刊	PAPERS IN PALAEONTOLOGY
卷号	2 期号:1 页码:41-58
文章类型	Article
摘要	A new species of diving duck from lacustrine deposits inside the middle Miocene High Rock Caldera in north-west Nevada (USA) appears to be more closely related to the stiff-tailed ducks Oxyura and Nomonyx than to other Oligocene and Miocene anatid taxa. The new species, Lavadytis pyrenae sp. nov., is represented by 24 fragments of humeri, tibiotarsi, tarsometatarsi, coracoids, a scapula and carpometacarpi, and several of the specimens are from juvenile individuals, indicating that the caldera palaeolake was a breeding site. The humerus has a 'closed' non-pneumatic ventral pneumotricipital fossa, lacks a capital shaft ridge, has a cranial carpal fovea and has a pronounced medial epicondyle on the tibiotarsus. Many of the osteological features present in this new species also occur (convergently) among derived diving duck clades and therefore suggest that this extinct species foraged by diving. This new species' phylogenetic position close to the extant species in Nomonyx and Oxyura, its middle Miocene age (16.1-14.6 Ma) and its geographical location in North America are consistent with molecular clock analyses placing the origin of the stem leading to Oxyura + Nomonyx at approximately 15.9 Ma in the New World. This new species could indicate that the stem of the Oxyura + Nomonyx clade had reached the New World by the middle Miocene and that the diversification present among New World Oxyurini/Oxyurinae began temporally close to the climatic warming of the Middle Miocene Climatic Optimum.
关键词	Diving Duck Aves Climate Change Palaeobiology Palaeoecology
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
DOI	10.1002/spp2.1029
关键词[WOS]	PHYLOGENETIC-RELATIONSHIPS ; MIDDLE MIOCENE ; AVES ; MONGOLIA
收录类别	SCI
语种	英语
项目资助者	Chinese National Natural Science Foundation(NSFC41472025) ; Strategic Priority Research Program of the Chinese Academy of Sciences (CAS)(XDB03020501)
WOS研究方向	Paleontology
WOS类目	Paleontology
WOS记录号	WOS:000370057400003
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7129
专题	中科院古脊椎所（2000年以后）
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 2.Nat Hist Museum, Dept Earth Sci, 5000 Rocklin Rd, Rocklin, CA 95677 USA 3.Nat Hist Museum, Sierra Coll, 5000 Rocklin Rd, Rocklin, CA 95677 USA
推荐引用方式 GB/T 7714	Stidham, Thomas A.,Hilton, Richard P.. NEW DATA ON STIFF-TAILED DUCK EVOLUTION AND DISPERSAL FROM A NEW SPECIES OF DIVING DUCK (ANSERIFORMES: ANATIDAE: CF. OXYURINAE) FROM THE MIOCENE HIGH ROCK CALDERA IN NORTH-WEST NEVADA, USA[J]. PAPERS IN PALAEONTOLOGY,2016,2(1):41-58.
APA	Stidham, Thomas A.,&Hilton, Richard P..(2016).NEW DATA ON STIFF-TAILED DUCK EVOLUTION AND DISPERSAL FROM A NEW SPECIES OF DIVING DUCK (ANSERIFORMES: ANATIDAE: CF. OXYURINAE) FROM THE MIOCENE HIGH ROCK CALDERA IN NORTH-WEST NEVADA, USA.PAPERS IN PALAEONTOLOGY,2(1),41-58.
MLA	Stidham, Thomas A.,et al."NEW DATA ON STIFF-TAILED DUCK EVOLUTION AND DISPERSAL FROM A NEW SPECIES OF DIVING DUCK (ANSERIFORMES: ANATIDAE: CF. OXYURINAE) FROM THE MIOCENE HIGH ROCK CALDERA IN NORTH-WEST NEVADA, USA".PAPERS IN PALAEONTOLOGY 2.1(2016):41-58.

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