Calcideletrix Mägdefrau, 1937

Microboring; substrate calcareous; tracemaker invertebrate?

Category of architectural design: 2.75. Dendritic and rosetted borings.

Branched, network.

Emended diagnosis. Dendritic boring system in calcareous skeletal substrates with a series of main axes that give the trace a lobed appearance. Inner branches may anastomose or leave blind-ending branches. Trace closely prostrate and with many contacts to the substrate surface.