New leptoceratopsids from the Upper Cretaceous of Alberta, Canada

被引：33
|
作者：
Ryan, Michael J. [1 ]
Evans, David C. [2 ,3 ]
Currie, Philip J. [4 ]
Brown, Caleb M. [3 ]
Brinkman, Don [5 ]
机构：
[1] Cleveland Museum Nat Hist, Dept Vertebrate Paleontol, Cleveland, OH 44106 USA
[2] Royal Ontario Museum, Dept Nat Hist, Toronto, ON M5S 2C6, Canada
[3] Univ Toronto, Dept Ecol & Evolutionary Biol, Toronto, ON M5S 3B2, Canada
[4] Univ Alberta, Dept Biol Sci, Edmonton, AB T6G 2E9, Canada
[5] Royal Tyrrell Museum Palaeontol, Drumheller, AB T0J OY0, Canada
来源：
CRETACEOUS RESEARCH | 2012年 / 35卷
关键词：
Ceratopsia; Leptoceratopsidae; Campanian; Santonian; Systematics; Evolution; 2 MEDICINE FORMATION; NEOCERATOPSIA; DINOSAURIA; CERATOPSIA;
D O I：
10.1016/j.cretres.2011.11.018
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
Two new leptoceratopsid neoceratopsians are described based on partial dentaries collected from the Dinosaur Park (Campanian) and Milk River (Santonian) formations of Alberta. The new Campanian taxon has a unique dentary tooth shape not shared by other leptoceratopsid taxa, which has implications for the evolution of the Leptoceratopsidae. The Santonian specimen represents the oldest known leptoceratopsid (similar to 83 Ma), and probably represents the smallest adult-sized ceratopsian known from North America. (C) 2011 Elsevier Ltd. All rights reserved.
引用
下载
收藏
页码：69 / 80
页数：12
相关论文
共 50 条
  • [1] UPPER CRETACEOUS SYMMETRODONT FROM ALBERTA, CANADA
    FOX, RC
    NATURE, 1972, 239 (5368) : 170 - &
  • [2] A new dromaeosaurid from the horseshoe canyon formation (upper cretaceous) of Alberta, Canada
    Currie, PJ
    Varricchio, DJ
    FEATHERED DRAGONS: STUDIES ON THE TRANSITION FROM DINOSAURS TO BIRDS, 2004, : 112 - 132
  • [3] COPROLITES FROM UPPER CRETACEOUS OF ALBERTA, CANADA, WITH A DESCRIPTION OF THEIR MICROFLORA
    WALDMAN, M
    HOPKINS, WS
    CANADIAN JOURNAL OF EARTH SCIENCES, 1970, 7 (05) : 1295 - +
  • [4] A new sturgeon from the Upper Cretaceous Horseshoe Canyon Formation in central Alberta, Canada
    Murray, Alison M. M.
    Nelson, Luke E. E.
    Brinkman, Donald B. B.
    JOURNAL OF VERTEBRATE PALEONTOLOGY, 2023, 43 (01)
  • [5] The palynostratigraphy of the Edmonton Group (Upper Cretaceous) of Alberta, Canada
    Srivastava, Satish K.
    Braman, Dennis R.
    PALYNOLOGY, 2013, 37 (01) : 1 - 27
  • [6] A new crocodylian (Eusuchia) from the uppermost Cretaceous of Alberta, Canada
    Wu, Xiao-Chun
    Brinkman, Donald B.
    CANADIAN JOURNAL OF EARTH SCIENCES, 2015, 52 (08) : 590 - 607
  • [7] An unusual microsite from the Upper Cretaceous Horseshoe Canyon Formation of Alberta, Canada
    Whitebone, S. A.
    Funston, G. F.
    Currie, P. J.
    JOURNAL OF VERTEBRATE PALEONTOLOGY, 2023, 43 (05)
  • [8] MOSASAUR TOOTH MARKS ON THE AMMONITE PLACENTICERAS FROM THE UPPER CRETACEOUS OF ALBERTA, CANADA
    HEWITT, RA
    WESTERMANN, GEG
    CANADIAN JOURNAL OF EARTH SCIENCES, 1990, 27 (03) : 469 - 472
  • [9] Probable deinonychosaur tracks from the Upper Cretaceous Wapiti Formation (upper Campanian) of Alberta, Canada
    Enriquez, Nathan J.
    Campione, Nicolas E.
    Sullivan, Corwin
    Vavrek, Matthew
    Sissons, Robin L.
    White, Matt A.
    Bell, Phil R.
    GEOLOGICAL MAGAZINE, 2021, 158 (06) : 1115 - 1128
  • [10] BURIAL METAMORPHIC MINERALS IN UPPER CRETACEOUS STRATA, ALBERTA, CANADA
    MORTON, RD
    SMITH, DGW
    NEUES JAHRBUCH FUR MINERALOGIE-ABHANDLUNGEN, 1987, 157 (01): : 47 - 55
12345