NEW ALBIAN (EARLY CRETACEOUS) OPHIUROIDS FROM THE TLAYUA QUARRY, PUEBLA, MEXICO

被引:9
|
作者
Martin-Medrano, Leonora [1 ]
Thuy, Ben [2 ]
Garcia-Barrera, Pedro [1 ]
机构
[1] Univ Nacl Autonoma Mexico, Museo Paleontol, Dept Evolut Biol, Fac Ciencias, Mexico City 04510, DF, Mexico
[2] Univ Tubingen, Inst Geowissensch, D-72076 Tubingen, Germany
关键词
Albian; Tlayua Formation; Mexico; Ophiuroidea; taxonomy; palaeoecology; RODRIGUEZ; TEPEXI;
D O I
10.1111/j.1475-4983.2008.00836.x
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
On the basis of six articulated individuals from the middle to late Albian lithographic limestone at Tlayua near Tepexi de Rodriguez (Puebla, Mexico), a new species of ophiuroid, Ophiactis applegatei, is described. The material adds to the rather poor record of Early Cretaceous brittlestars and represents the oldest known member of the family Ophiactidae, being based on well-preserved and articulated specimens and thus reasonably well defined morphologically. The rarity of ophiuroids, their complete preservation as well as the unnatural contortions of their arms suggest these specimens to be allochthonous, having been transported into a hostile environment where burial was rapid.
引用
收藏
页码:83 / 94
页数:12
相关论文
共 50 条