Angmaat Formation (image) McGill University Share Print E-Mail Caption The Angmaat Formation above Tremblay Sound on the Baffin Island coast. Bangiomorpha pubescens fossils occur in this roughly 500-meter thick rock formation. Credit Timothy Gibson Usage Restrictions One-time use only Share Print E-Mail 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.