Bryolith

A typical bryolith consists of:

✅ Rounded, asymmetrical nodule ✅ Surface shows at least partly ✅ Broken edge reveals crusts with tiny chambers ✅ Often contains a bioclast core ✅ Occurs in bryozoan-rich calcarenite ✅ Multiple generations of encrusters/bioerosion visible ✅ Not made of algal bands (oncolite) or pure abiotic carbonate bryolith

: The asymmetric growth (thicker on one side) and lack of continuous concentric layering distinguish bryoliths from purely algal nodules. A typical bryolith consists of: ✅ Rounded, asymmetrical

Bryoliths form through a repeating cycle of and overturning : bryolith