Stick insect (IMAGE) Science China Press Caption Stick insect, Aclistophasma echinulatum, from Middle Jurassic of China. (A and B) Holotype and Line drawing of A. echinulatum. (C and D) Abdominal extension of A. echinulatum. (¬E) Extant stick insect Heteropteryx dilatata. (¬F and G) Spines of abdominal tergal extension within fossil A. echinulatum and living H. dilatata. Credit ©Science China Press Usage Restrictions Use with credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.