Crinoid calyx

Fossil · Jura arc, Switzerland · Middle Devonian

Naturmuseum Naturbiel·NMNB 2021.0117

Specimen overview

Higher taxonomy Crinoidea · Echinodermata
Lithostratigraphic Middle Devonian limestone

Constituent parts (4)

Calyx (cup)

Articulated crown · plate-by-plate preservation

Higher taxonomy Crinoidea · Camerata
Skeletal element Theca + basal plates

Arm fragments

Multiple disarticulated brachials adjacent to the calyx

Skeletal element Brachials · pinnulars

Columnal (stem) segment

Partial stem in life position

Skeletal element Columnal ossicles Pentameric symmetry

Holdfast

Encrusting attachment structure on substrate

Skeletal element Radicular cement

Locality

Map showing the locality of Crinoid calyx
Jura arc · Middle Devonian — exact coordinates available on request from the holding institution.