Fossilized bacteria in a Cretaceous pterosaur headcrest
Article first published online: 17 APR 2012
© 2012 The Authors, Lethaia © 2012 The Lethaia Foundation
Volume 45, Issue 4, pages 495–499, October 2012
How to Cite
PINHEIRO, F. L., HORN, B. L.D., SCHULTZ, C. L., DE ANDRADE, J. A. F. G. and SUCERQUIA, P. A. (2012), Fossilized bacteria in a Cretaceous pterosaur headcrest. Lethaia, 45: 495–499. doi: 10.1111/j.1502-3931.2012.00309.x
- Issue published online: 17 SEP 2012
- Article first published online: 17 APR 2012
Pinheiro F.L., Horn B.L.D., Schultz C.L., de Andrade J.A.F.G. and Sucerquia P.A., 2012: Fossilized bacteria in a Cretaceous pterosaur headcrest. Lethaia, Vol. 45, pp. 495–499.
We report herein the first evidence of bacterial autolithification in the Crato Formation of Araripe Basin, Brazil. The fossilized bacteria are associated with a tapejarid pterosaur skull, replacing the soft-tissue extension of the headcrest. EDS analyses indicate that the bacteria were replaced by phosphate minerals, probably apatite. The bacterial biofilm was likely part of the prokaryotic mat that decomposed the pterosaur carcass at the bottom of the Araripe lagoon. This work suggests that bacterial autolithification could have played a key-role on soft-tissue preservation of Crato Formation Lagerstätte. □Bacterial autolithification, Crato Formation, phosphatization, pterosaur, soft-tissue preservation.