Document of bibliographic reference 354790

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

First description of soft body parts of Ambtonia Malz and Nipponocythere Ishizaki (Ostracoda) from Korea with details on the genera's geographic and paleogeographic distribution

Abstract

For the first time, soft body parts of ostracod genera, Nipponocythere Ishizaki, 1971 from the family Loxoconchidae and Ambtonia Malz, 1982 from the family Trachyleberididae, both belonging to the superfamily Cytheroidea, are described and illustrated. The specimens are male representatives of the species Nipponocythere bicarinata (Brady, 1880) and Ambtonia obai (Ishizaki, 1971), collected from Wando Island, Korea. Their soft body morphology does not completely conform with the latest identification key to cytheroid families, which suggests the need for a comprehensive revision. A revised diagnosis for the type species of both genera, Nipponocythere asamushiensis Ishizaki, 1971 and Ambtonia glabra Malz, 1982 is given. Stratigraphic ranges and ecological and paleoecological significance of families Loxoconchidae and Trachyleberididae are being discussed. Published records of N. bicarinata that provide an illustration and/or SEM have been taxonomically reviewed and a list of morphological variations is given. Spatial distribution data for both target species, N. bicarinata and A. obai, as well as their respective genera, were compiled separated by time: recent (i.e., Holocene) versus fossil (older than Holocene). With respect to the detected eco-phenotypes of N. bicarinata, a re-evaluation of its spatial distribution is given. We found that by excluding these morphological variations, its assumed spatial distribution is significantly altered, shifting its southernmost distribution margin, previously reported from the South China Sea, north to the northernmost region of the East China Sea.

WebOfScience code

https://www.webofscience.com/wos/woscc/full-record/WOS:000829304000006

Bibliographic citation

Jöst, A.B.; Hong, Y.; Karanovic, I. (2022). First description of soft body parts of Ambtonia Malz and Nipponocythere Ishizaki (Ostracoda) from Korea with details on the genera's geographic and paleogeographic distribution. Mar. Micropaleontol. 174: 102029. https://dx.doi.org/10.1016/j.marmicro.2021.102029

Topic

Marine

Is peer reviewed

true