Robuta

https://lifeartearth.blogspot.com/2024/09/a-19th-century-specimen-of-cotham.html A 19th century specimen of Cotham Marble, a Triassic microbialite Cotham Marble from near Bristol is far from uncommon, but old museum specimens of the material are rarely seen. One such 19th century specim... cotham marblecenturyspecimentriassic https://bathgeolsoc.org.uk/lectures/2016-02-04-cotham-marble Cotham Marble | Bath Geological Society Bath Geological Society is an active and flourishing organisation with about 80 enthusiastic members whose ages range from 17 to 90. Our membership includes... cotham marblebathgeologicalsociety