Image 1 of 8
Image 2 of 8
Image 3 of 8
Image 4 of 8
Image 5 of 8
Image 6 of 8
Image 7 of 8
Image 8 of 8
Specimen Details
Matrix Dimensions
Specimen Dimensions
Shipping Dimensions
Additional Information
Description:
Cricocosmia is a genus of palaeoscolecid worm from the Early Cambrian Chengjiang biota
Palaeoscolecids are a widespread Palaeozoic group of armoured subcylindrical worms whose phylogenetic position has attracted much debate. Their regionalized pharyngeal armature and posterior hooks recall those of priapulans. The palaeoscolecids are a group of extinct ecdysozoan worms resembling armoured priapulids. They are known from the Lower Cambrian to the late Silurian; they are mainly found as disarticulated sclerites, but are also preserved in many of the Cambrian lagerstätten. They take their name from the typifying genus Palaeoscolex. Other genera include Cricocosmia from the Lower Cambrian Chengjiang biota.
References:
Fulu biota, a new exceptionally-preserved Cambrian fossil assemblage from the Longha Formation in southeastern Yunnan
Palaeoscolecidomorpha from the early Cambrian Chengjiang Biota
Palaeoscolecid - Wikipedia
