Pisoids

1. Pisoids

Pisoid formed by thin micritic concentric laminae around an intraclast, possibly formed in a subtidal to intertidal environment.

Permian, Capitan Reef, New Mexico, USA

2. Pisoids

Regular concentric laminae, first hyaline and then dark micritic.

Lower Jurassic, High Atlas, Morocco, cf. Verwer et al. (2009a)

3. Pisoids

Grainstone with pisoidal coating around intraclasts and fenestral porosity (keystone vugs) in intertidal environment.

Lower Jurassic, High Atlas, Morocco, cf. Verwer et al. (2009a)

4. Pisoids

Grain- to packstone containing pisoids and an intraclast of pisoidal packstone with meniscus micrite binding deposited in intertidal to vadose setting.

Lower Jurassic, High Atlas, Morocco, cf. Verwer et al. (2009a), Merino-Tome' et al. (2012)

5. Pisoids

Pisoidal grainstone with meniscus micrite cement in intertidal to vadose conditions.

Lower Jurassic, High Atlas, Morocco, cf. Verwer et al. (2009a), Merino-Tome' et al. (2012)

6. Vadose Pisoids

Grainstone to packstone consisting of vadose pisoids bound by micritic meniscus cement.

Lower Mississippian, Shunda Formation, Alberta, Canada