Anatomy of the Early Cretaceous bird Rapaxavis pani, a new species from Liaoning Province, China

2009 ◽  
Vol 29 (2) ◽  
pp. 545-554 ◽  
Author(s):  
Eric M. Morschhauser ◽  
David J. Varricchio ◽  
Gao Chunling ◽  
Liu Jinyuan ◽  
Wang Xuri ◽  
...  
2011 ◽  
Vol 42 (2) ◽  
pp. 213-220 ◽  
Author(s):  
Alexey Solodovnikov ◽  
Diying Huang ◽  
Chenyang Cai

AbstractA new species of the extinct rove beetle genus Hesterniasca Zhang, Wang & Xu, 1992 is described and illustrated on the basis of a well-preserved specimen from the Lower Cretaceous Yixian Formation at Huangbanjigou of Beipiao City, Liaoning Province, Northeastern China. Based on the examination of this new species that is preserved better than the type species of the genus, Hesterniasca is firmly placed in the recent subfamily Tachyporinae, tentatively in the recent tribe Tachyporini MacLeay, 1825. Arguments for the Early Cretaceous age of the Laiyang Formation in Shandong Province, Eastern China, from where the type species of the genus, Hesterniasca obesa Zhang, Wang & Xu, 1992, has been discovered are provided.


2012 ◽  
Vol 86 (3) ◽  
pp. 508-512 ◽  
Author(s):  
Yanli Yue ◽  
György Makranczy ◽  
Dong Ren

A new species of the staphylinid subfamily Oxytelinae is described and figured from a series of well-preserved compression fossils of the Yixian Formation (Early Cretaceous), Beipiao City, Liaoning Province, northeastern China. The species is placed in the recent genusAnotylusThomson, 1859 based on typical morphological features for the genus as well as secondary sexual characters. The strong projection of the anterior pronotal angles is a feature also possessed by males of several recent Neotropical taxa in the genus. This is the earliest fossil rove beetle with clearly demonstrable sexual dimorphism.


Zootaxa ◽  
2012 ◽  
Vol 3504 (1) ◽  
pp. 56 ◽  
Author(s):  
YAPING CAI ◽  
YUNYUN ZHAO ◽  
CHUNGKUN SHIH ◽  
DONG REN

A new genus Mirabythus Cai, Shih et Ren, gen. nov. (type species, M. lechrius Cai, Shih et Ren, sp. nov.) and M. liae Cai, Shih et Ren, sp. nov. from the family Scolebythidae are described from the Early Cretaceous Yixian Formation of Huangbanjigou Village, Liaoning Province, northeastern China. These findings extend the existence of Scolebythidae to the Early Cretaceous of China, while providing evidence to support Engel and Grimaldi’s hypothesis that the family was widely distributed throughout the Cretaceous. Our two new species with clear venation also provide a comprehensive understanding of the venational changes from the Early Cretaceous to now. A key to the fossil and extant genera of Scolebythidae is provided.


Zootaxa ◽  
2007 ◽  
Vol 1530 (1) ◽  
pp. 27-32 ◽  
Author(s):  
KUIYAN ZHANG ◽  
DING YANG ◽  
DONG REN

Protapioceridae, which belongs to the superfamily Asiloidea, is an extinct endemic family in China. Until now, only one genus and two species were known from Liaoning Province of Palaearctic China. In the present paper a third species of the small family is reported. A key to the species is presented.


2015 ◽  
Vol 35 (2) ◽  
pp. e902847 ◽  
Author(s):  
Cuo Peng ◽  
Alison M. Murray ◽  
Donald B. Brinkman ◽  
Jiang-Yong Zhang ◽  
Hai-Lu You

2011 ◽  
Vol 83 (1) ◽  
pp. 301-308 ◽  
Author(s):  
Alexander W.A. Kellner ◽  
Taissa Rodrigues ◽  
Fabiana R. Costa

Flying reptiles from Australia are very rare, represented mostly by isolated bones coming from the Early Cretaceous (Albian) Toolebuc Formation, which crops out in western Queensland. Among the first pterosaur specimens discovered from this deposit is a mandibular symphysis that some authors thought to have a particular affinity to species found in the Cambridge Greensand (Cenomanian) of England. It was further referred as a member of or closely related to one of the genera Ornithocheirus, Lonchodectes or Anhanguera. Here we redescribe this specimen, showing that it cannot be referred to the aforementioned genera, but represents a new species of Pteranodontoid (sensu Kellner 2003), here named Aussiedraco molnari gen. et sp. nov. It is the second named pterosaur from Australia and confirms that the Toolebuc deposits are so far the most important for our understanding of the flying reptile fauna of this country.


2018 ◽  
Vol 285 (1871) ◽  
pp. 20172494 ◽  
Author(s):  
Xiaoting Zheng ◽  
Jingmai K. O'Connor ◽  
Xiaoli Wang ◽  
Yan Wang ◽  
Zhonghe Zhou

STM35-3 from the Yixian Formation is the only Early Cretaceous ornithuromorph preserving direct evidence of granivory. The crop contains numerous seeds and the preservation of gastroliths presumably within the ventriculus indicates this diet was paired with the presence of a gastric mill as in living granivorous birds. STM35-3 was originally referred to Hongshanornis longicresta , member of a diverse clade of small, basal ornithuromorphs with elongate hindlimbs known as the Hongshanornithidae. Hindlimb proportions suggest that hongshanornithids were wading birds, an ecological inference somewhat in conflict with direct evidence suggesting Hongshanornis fed on seeds. However, close inspection of STM35-3 reveals that the specimen represents a new species not closely related to hongshanornithids, distinguished by large forelimbs that exceed the length of the hindlimbs, robust and narrow coracoids, and a delicate edentulous rostrum. By contrast, all hongshanornithids have hindlimbs that far exceed the length of the forelimbs, coracoids with wide sternal margins, and small teeth throughout the upper and lower jaws. Reinterpretation of this new taxon, Eogranivora edentulata gen. et sp. nov, helps to clarify trophic driven patterns of tooth loss within the Ornithuromorpha. Apparent loss of the hallux may represent the first such occurrence in a Mesozoic bird and suggests a highly terrestrial lifestyle.


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