Formas anómalas en los corales eocenos de la cuenca de igualada (noreste de España)

The anomalous forms of corals from the Igualada Basin “Upper Eocene”, which is located in the Southern Pyrenees and forms part of the Ebro Basin, are described. The corals show anomalies in their shape and in their development and growth. The solitary and colonial corals were analysed separately. In order to account for anomalous forms, the most probable causes were considered with reference to those already accepted by other paleontologists. Our study provides new data for the description and systematic classifi cation of all the coral species in the Igualada basin and other equivalent basins of the Neotethys related to Alpine Orogeny.