Some taxa occupy our imaginations as “living fossils” because they were known from the fossil record before being discovered alive today. Other are considered modern relatives bear a strong morphological resemblance to relatives, or contracted geographic range have less diversity now than in past, represent phylogenetic that requires conservation. A characterizing feature of living fossils–and ...

Se describe una pequeña fauna encontrada en la base de Formación del Jalón. El estado conservación no es bueno y por lo tanto se pueden dar determinaciones exactas. Parece, sin embargo, que está relacionada a con Dolerolenus conocida cerca Los Barrios Luna (León).