Olsson, Axel <br/><br/>
Contributions to the paleontology of Northern Peru :  Part VII the cretaceous of the Paita region 

<br/><br/> <Donation ORSTOM> 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crétacé<br/>Sénonien<br/>Faune invertébré<br/>Faune mollusque<br/>Faune ammonite
<br/><br/><label>Subjects--Index Terms: </label>Pérou  Piura  Paita