Ericichnus Santos et Mayoral, 2015

Grazing; substrate siliceous; tracemaker invertebrate

Category of architectural design: 2.79. Groove bioerosion traces.

Diagnosis. Grooves relatively deep, with sinuous pathway, with a width fairly uniform along its trajectory. Often they show points where the path is bifurcated reaching, in these cases, a width which can be the double of the normal diameter. Inside there are a number of lines or marks, more or less pronounced, with a concavity oriented in the animal's direction of movement.

Ethology. From an ethological point of view, the resulting compound trace fossil Ericichnus igen. n.– Circolites is interpreted as an agrichnion – pascichnion and/or domichnion.