Early Miocene Tanaidacea (Crustacea: Malacostraca) preserved in amber from Chiapas, Mexico, with the preliminary descriptions of new taxa

被引:11
作者
Heard, Richard W. [1 ]
de Lourdes Serrano-Sanchez, Maria [2 ]
Vega, Francisco J. [3 ]
机构
[1] Univ Southern Mississippi, Gulf Coast Res Lab Campus, 703 East Beach Dr, Ocean Springs, MS 39564 USA
[2] Univ Nacl Autonoma Mexico, Posgrad Ciencias Tierra, Mexico City 04510, DF, Mexico
[3] Univ Nacl Autonoma Mexico, Inst Geol, Mexico City 04510, DF, Mexico
来源
NEUES JAHRBUCH FUR GEOLOGIE UND PALAONTOLOGIE-ABHANDLUNGEN | 2018年 / 288卷 / 01期
关键词
Crustacea; Tanaidacea; Early Miocene; estuary; amber; Chiapas; Mexico; PERACARIDA; PARAPSEUDIDAE; APSEUDOMORPHA;
D O I
10.1127/njgpa/2018/0726
中图分类号
Q91 [古生物学];
学科分类号
0709 ; 070903 ;
摘要
Three different taxa attributable to the crustacean order Tanaidacea were discovered in Early Miocene amber deposits at Chiapas, Mexico. These fossil taxa represent the first record of the Tanaidacea to be found preserved in Miocene amber and the first from the Western Hemisphere. One of the tanaidaceans, Discapseudes (Miodiscapseudes) chiapasensis HEARD n. subgen, n. sp. belongs to the suborder Apseudomorpha. Extant populations representing several members of the genus currently occur along tropical and brackish coastal areas of the Americas. The other two fossil taxa from Chiapas belong to the suborder Tanaidomorpha. One represents a new genus and species, Pseudopancolus minutus HEARD; the other taxon is a single manca stage of an unknown genus and undetermined family. The other arthropod taxa co-occurring in the Chiapas amber deposits belong to brackish, freshwater and terrestrial species.
引用
收藏
页码:107 / 120
页数:14
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