New record of podocopid ostracods from Cretaceous amber

PeerJ

article

He Wang¹  Mario Schädel²  Benjamin Sames³  David J. Horne⁴ 

[1] State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences;Zoomorphology group, Department of Biology II, Ludwig-Maximilians-Universität München;Department of Geodynamics and Sedimentology, University of Vienna;School of Geography, Queen Mary University of London

关键词: Myanmar;    Amber;    Palaeoenvironment;    Ostracods;    Taphonomy;   

DOI  :  10.7717/peerj.10134

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

Burmese Cretaceous amber (∼99 Ma, Myanmar) is famous for the preservation of a wide range of fauna and flora, including representatives of marine, freshwater and terrestrial groups. Here, we report on three ostracod specimens, that came visible as syninclusions to an aquatic isopod. The three specimens represent three different taxa, that were found preserved in a single piece of amber. One of the described specimens was studied using µCT scanning data. On the basis of general carapace morphology we assign all three to the group Podocopida, and (tentatively) its ingroup Cypridocopina. A lack of visibility of more particular diagnostic features such as adductor muscle scars and details of the marginal zone precludes a further identification, but we discuss possible affinities with either the marine-brackish group Pontocypridoidea or the non-marine group Cypridoidea. The taphonomy indicates that the studied ostracods had been subject to limited (if any) post-mortem transport, which could be consistent with marginal marine environments.

【 授权许可】

CC BY