Siveter et al. (1 of 2) (image) University of Leicester Caption This is the ostracod Luprisca incuba, showing limbs and eggs, from 450 million-year old-rocks of New York State, USA. Credit Siveter, David J., Tanaka, G., Farrell, C. Ú., Martin, M.J., Siveter, Derek J & Briggs, D.E.G. Usage Restrictions None 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.