Humid-type alluvial-fan deposits and associated coal seams in the Lower Cretaceous Haizhou Formation, Fuxin Basin of northeastern China

Author(s):  
Wu Chonglong ◽  
Li Sitian ◽  
Cheng Shoutian
2016 ◽  
Vol 283 (1839) ◽  
pp. 20161448 ◽  
Author(s):  
Taiping Gao ◽  
Chungkun Shih ◽  
Conrad C. Labandeira ◽  
Jorge A. Santiago-Blay ◽  
Yunzhi Yao ◽  
...  

Antennae are important, insect sensory organs that are used principally for communication with other insects and the detection of environmental cues. Some insects independently evolved ramified (branched) antennae, which house several types of sensilla for motion detection, sensing olfactory and chemical cues, and determining humidity and temperature levels. Though ramified antennae are common in living insects, occasionally they are present in the Mesozoic fossil record. Here, we present the first caddisflies with ramified antennae, the earliest known fossil sawfly, and a scorpionfly also with ramified antennae from the mid-Lower Cretaceous Yixian Formation of Northeastern China, dated at 125 million years ago (Ma). These three insect taxa with ramified antennae consist of three unrelated lineages and provide evidence for broad structural convergence that historically has been best demonstrated by features such as convergent mouthparts. In addition, ramified antennae in these Mid-Mesozoic lineages likely do not constitute a key innovation, as they are not associated with significantly increased diversification compared with closely related lineages lacking this trait, and nor are they ecologically isolated from numerous, co-occurring insect species with unmodified antennae.


2018 ◽  
Vol 52 (4) ◽  
pp. 414-420 ◽  
Author(s):  
Qi Zhang ◽  
A. P. Rasnitsyn ◽  
Haichun Zhang

1986 ◽  
Vol 46 (1-2) ◽  
pp. 1-22 ◽  
Author(s):  
S. Flint ◽  
H. Clemmey ◽  
P. Turner

2016 ◽  
Vol 64 ◽  
pp. 59-66 ◽  
Author(s):  
Changyue Xing ◽  
Chungkun Shih ◽  
Yunyun Zhao ◽  
Dong Ren

ZooKeys ◽  
2019 ◽  
Vol 893 ◽  
pp. 115-123 ◽  
Author(s):  
Yimo Wang ◽  
Mei Wang ◽  
ChungKun Shih ◽  
Alexandr P. Rasnitsyn ◽  
Jun Yao ◽  
...  

A new sawfly of Megalodontesidae, Jibaissodes peichenaesp. nov., is described from the Lower Cretaceous Yixian Formation of Northeastern China. It is established mainly based on the pectinate antenna comprising 42 flagellomeres and the proximal 28 bearing apical rami, which gradually shorten in length toward the apex of the flagellum. The pterostigma of the forewing is infuscated apically and on the hind wing, vein 1-Rs is nearly equal to 1r-m and slightly shorter than 1-M. The first tergum is widely excised posteriorly and roundly protruding laterally alike in Megalodontes. This find supports that pectinate antennae in extant sawflies of Megalodontesidae originated at least during or before the Early Cretaceous.


2020 ◽  
Vol 107 ◽  
pp. 104285 ◽  
Author(s):  
Lida Xing ◽  
Tetsuto Miyashita ◽  
Donghao Wang ◽  
Kechung Niu ◽  
Philip J. Currie

2010 ◽  
Vol 39 (5) ◽  
pp. 347-358 ◽  
Author(s):  
Romain Amiot ◽  
Nao Kusuhashi ◽  
Xing Xu ◽  
Yuanqing Wang

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