Abstract
Based on newly collected material from the Lower Cretaceous (Hauterivian to Aptian) Yixian and Jiufotang formations of the Jehol Group, eight Cypridea species have been recognized in western Liaoning: C. ganzhaoensis, C. gujialingensis n. sp., C. jiufotangensis, C. vitimensis, C. beipiaoensis, C. subfracta, C. subelongata, and C. semiovata. Among them, one species from Kazuo area is new, Cypridea gujialingensis n. sp. Except for C. vitimensis, which has also been reported from Mongolia and western Siberia, the rest of the species are endemic to western Liaoning. On the basis of new material, we confirm sexual dimorphism in C. vitimensis and distinguish sexual and parthenogenetic populations. Paleobiologically, we infer a mixed reproduction mode for C. vitimensis and suggest that its sexual populations from western Liaoning could indicate stressful environmental conditions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
