Standard: Million years ago

ID: 76

Measurement unit: mya

Class: Base unit

Description:

Million years ago

Added by: Joshua Madin

Observations using this standard

Rhizosmilia maculata

Rhizosmilia multipaliferus

Rhizosmilia robusta

Rhizosmilia sagamiensis

Rhizotrochus flabelliformis

Rhizotrochus levidensis

Rhizotrochus tuberculatus

Rhizotrochus typus

Rhombopsammia niphada

Rhombopsammia squiresi

Sandalolitha dentata

Sandalolitha robusta

Scapophyllia cylindrica

Schizoculina africana

Schizoculina fissipara