Sequence stratigraphy and coal accumulation of Lower Cretaceous coal-bearing series in Erlian Basin, northeastern China

AAPG Bulletin ◽  
2019 ◽  
Vol 103 (7) ◽  
pp. 1653-1690 ◽  
Author(s):  
Shuai Wang ◽  
Longyi Shao ◽  
Dongdong Wang ◽  
Qinping Sun ◽  
Bin Sun ◽  
...  
Keyword(s):  
Sequence Stratigraphy ◽  
Lower Cretaceous ◽  
Northeastern China ◽  
Coal Accumulation ◽  
Erlian Basin

scholarly journals Convergent evolution of ramified antennae in insect lineages from the Early Cretaceous of Northeastern China

2016 ◽  
Vol 283 (1839) ◽  
pp. 20161448 ◽  
Author(s):  
Taiping Gao ◽  
Chungkun Shih ◽  
Conrad C. Labandeira ◽  
Jorge A. Santiago-Blay ◽  
Yunzhi Yao ◽  
...  
Keyword(s):  
Early Cretaceous ◽  
Motion Detection ◽  
Lower Cretaceous ◽  
Fossil Record ◽  
Convergent Evolution ◽  
Chemical Cues ◽  
Northeastern China ◽  
Environmental Cues ◽  
Key Innovation ◽  
Temperature Levels

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.

New Angarosphecidae (Insecta: Hymenoptera: Apoidea) from the Lower Cretaceous of Northeastern China

2018 ◽  
Vol 52 (4) ◽  
pp. 414-420 ◽  
Author(s):  
Qi Zhang ◽  
A. P. Rasnitsyn ◽  
Haichun Zhang
Keyword(s):  
Lower Cretaceous ◽  
Northeastern China
Sign in / Sign up

Export Citation Format

Share Document