 |
 |
 |
 |
 |
 |
|
|
 |
 |
 |
 |
 |
 |
| associated links |
 |
 |
 |
| a s t r o n o m y w i t h t r u |
| a s t r o n o m y w i t h t r u |
| a s t r o n o m y w i t h t r u |
| . |
| Four-winged dinosaurs from China |
 |
| S C I E N C E |
| S C I E N C E |
| S C I E N C E |
| credits Nature Page 4 article given by markm photos researched and contributed for the story by Ackers |
 |
 |
| Feathers showing the asymmetrical vanes. Pennaceous feathers attached to the left metatarsus of IVPP V13477 (a) and right metatarsus of IVPP V13320 (b). c, Close-up of a distal pennaceous feather on the left metatarsus of IVPP V13477. d, Close-up of a distal pennaceous feather on the left metatarsus of TNP00996. e, Close-up of some tail feathers of TNP00996. f, Close-up of some distal primaries of IVPP V13352. |