A Late Cretaceous taeniodont (Eutheria, Mammalia) from Alberta, Canada

被引:27
作者
Fox, RC [1 ]
Naylor, BG
机构
[1] Univ Alberta, Dept Biol Sci, Lab Vertebrate Paleontol, Edmonton, AB T6G 2E9, Canada
[2] Royal Tyrren Museum Palaeontol, Drumheller, AB T0J 0Y0, Canada
来源
NEUES JAHRBUCH FUR GEOLOGIE UND PALAONTOLOGIE-ABHANDLUNGEN | 2003年 / 229卷 / 03期
关键词
D O I
10.1127/njgpa/229/2003/393
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
Schowalteria clemensi n.g. n.sp., from the Late Cretaceous Scollard Formation, Red Deer River Valley is the first Mesozoic taeniodont to be discovered. Although more primitive in important features of the postcanine dentition than the conoryctid Onychodectes (of mid-Puercan age, New Mexico, and previously the most primitive taeniodont known), S. clemensi most resembles the advanced, stylinodontid taeniodonts in incisor morphology, canine specializations, facial proportions, and zygomatic arch construction. The dentition of Schowalteria indicates that the purported affinity of palaeoryctid insectivorans with Onychodectes is based only on homoplastic resemblances, leaving taeniodont relationships unresolved.
引用
收藏
页码:393 / 420
页数:28
相关论文
共 67 条
[1]  
[Anonymous], [No title captured]
[2]  
[Anonymous], 1998, EVOLUTION TERTIARY M
[3]  
ARCHIBALD J D, 1982, University of California Publications in Geological Sciences, V122, P1
[4]  
Archibald J.D., 1987, P24
[5]   Late Cretaceous relatives of rabbits, rodents, and other extant eutherian mammals [J].
Archibald, JD ;
Averianov, AO ;
Ekdale, EG .
NATURE, 2001, 414 (6859) :62-65
[6]   A eutherian mammal from the Early Cretaceous of Russia and biostratigraphy of the Asian Early Cretaceous vertebrate assemblages [J].
Averianov, A ;
Skutschas, P .
LETHAIA, 2000, 33 (04) :330-340
[7]  
Averianov AO, 2001, ACTA PALAEONTOL POL, V46, P431
[8]   Tribosphenic mammal from the North American Early Cretaceous [J].
Cifelli, RL .
NATURE, 1999, 401 (6751) :363-366
[9]  
Clemens W.A., 1979, P7
[10]  
Clemens W.A., 1979, P192