About the Authors

Phillip Barden

pbarden@amnh.org

Affiliations Division of Invertebrate Zoology, American Museum of Natural History, New York, New York, United States of America, Richard Gilder Graduate School, American Museum of Natural History, New York, New York, United States of America

David Grimaldi

Affiliation Division of Invertebrate Zoology, American Museum of Natural History, New York, New York, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Wrote the paper: PB. Contributed to text and photomicrographs to the paper: PB DG. Created the illustrations: DG.