首页|A reassessment of Iteravis huchzermeyeri and Gansus zheni from the Jehol Biota in western Liaoning,China

A reassessment of Iteravis huchzermeyeri and Gansus zheni from the Jehol Biota in western Liaoning,China

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The authors reassessed the taxonomic distinction of Iteravis huchzermeyeri and Gansus zheni,which are two species of Ornithuromorpha based on specimens from the same locality in western Liaoning and derive from the Jehol Biota.The detailed comparisons of the holotype and referred specimens of both species,reveal no anatomical features that distinguish these taxa as separate species.Some minor differences are considered to relate to ontogenetic or interspecific differences.The stratigraphic occurrence for both specimens is the Lower Cretaceous Jiufotang Formation.Accordingly,the authors conclude that Iteravis huchzermeyeri has priority,by 15 days,for this taxon and that Gansus zheni is a junior synonym.The diagnosis of Iteravis huchzermeyeri is revised based on further study on all specimens referred to this species.Its generic distinction from Gansus is maintained thereby removing a potential genus-level correlation linking Xiagou Formation in Gansu Province with the Jiufotang Formation in Liaoning Province.

Jehol BiotaLower CretaceousOrnithuromorphaSynonymGeological survey engineeringWestern LiaoningChina

Shu-bin Ju、Xu-ri Wang、Yi-chuan Liu、Yang Wang

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Institute of Geology,Chinese Academy of Geological Sciences,Key Laboratory of Stratigraphy and Paleontology of the Ministry of Natural Resources,Beijing 100037,China

China University of Geosciences(Beijing),Beijing 100083,China

This work was supported by projects from the National Natural Science Foundation of ChinaThis work was supported by projects from the National Natural Science Foundation of ChinaChina Geological Survey

4187201841672019DD20190602

2021

10.31035/cg2020066

中国地质(英文)
中国地质调查局,中国地质科学院

中国地质(英文)

CSTPCD
ISSN：2096-5192
年,卷(期)：2021.4(2)
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