Disturbed aquatic habitats in central-eastern Inner Mongolia revealed by the prevalence of widespread ostracod species

Ilyocypris leptolinea Wang & Zhai, sp. nov., an ostracod (Ostracoda, Crustacea) from the late Quaternary of Inner Mongolia, northern China

“…1D ), we suggest that the corresponding environment at the sampling site represented a shallow lake, or littoral to intermediate zone of a large lake, with the water becoming shallower across the studied time span. The ostracod composition of the section lacks the species Limnocythere inopinata (Baird, 1843), which dominates the small and large brackish waterbodies in the area nowadays ( Zhai et al 2010 , 2013 , 2015 , 2022 ). This species was also abundant in the large brackish lakes in eastern Inner Mongolia during the late Quaternary ( Shen et al 2001 ; Zhai et al 2011 ; Yue et al 2022 ).…”

“…Apart from the Ilyocypris material from the XJG2 section, four other congeneric species with Holocene representatives in eastern Inner Mongolia were included: I. bradyi, Ilyocypris innermongolica Xiao, 2013, Ilyocypris mongolica Martens, 1991, andI. japonica. The first three species have been found living in eastern Inner Mongolia Zhai and Zhao 2014;Zhai et al 2022). A marginal-ripplet pattern coinciding with that of I. japonica was found by DZ in the Ilyocypris material from Holocene sediments of Lake Hulun in northeastern Inner Mongolia, which had been left in open nomenclature in Zhai et al (2011).…”

“… japonica . The first three species have been found living in eastern Inner Mongolia ( Zhai and Xiao 2013 ; Zhai and Zhao 2014 ; Zhai et al 2022 ). A marginal-ripplet pattern coinciding with that of I.…”