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To date, 37 species and 2 subspecies (36 species plus 1 species that with 2 subspecies) of the ostracode genus Cribroconcha Cooper, 1941 have been reported worldwide, ranging in age from the Middle Devonian to the Early Permian with an acme during the Carboniferous. Based on the geographical distribution and morphological characteristics of Cribroconcha , two evolutionary lineages (i.e., Lineage 1 and Lineage 2) are identified, which originated in the European and the Kazakhstan plates, respectively. Lineage 1 can be subdivided into three types: 1-A (stable type), 1-B (reshaped type) and 1-C (spiny type). Lineage 2 has a simpler pattern of evolution compared to Lineage 1. Although there were certain accompanying changes in the morphology of carapaces, the general pattern and most successful evolutionary novelty of Cribroconcha appears to be the appearance of spiny forms in the Early Carboniferous, which continued to be preserved until the Early Permian. The habitats of Cribroconcha may have changed from shallow, warm waters to deep, calm and colder waters in the basinal environments. Four Cribroconcha biozones, extending from the Givetian Stage to Serpukhovian Stage are established in the Euramerica plate, namely C. beckmanni Zone, C. triquetra triquetra Zone, C. cooperi Zone and C. caneyensis Zone. • Two evolutionary lineages of Cribroconcha (Ostracoda) are identified in Palaeozoic. • Lineage 1 are subdivided in three types- stable type, reshaped type and spiny type. • Habitats of Cribroconcha changed from predominantly benthic to mainly nektonic. • Four biozones have been established in the Euramerica plate for the first time. [ABSTRACT FROM AUTHOR]