Three new and one completely preserved species of hexactinellid sponges are described from Early Cambrian black shales of South Anhui, China. The sponges occur in the middle part of the Huangboling Formation, which is assigned to the early Canglangpuian based on trilobite biostratigraphy. Metaxyspongia skelidata n. gen. and sp. and Hexatractiella dongzhiensis n. sp. are subcylindrical thin-walled Protospongiidae. Ratcliffespongia multiforamina n. sp. is assigned to the Hintzespongiidae. With these new sponges, the first occurrences of the Protospongiidae and Hintzespongiidae, and of Hexatractiella Mehl, 1996, can be traced back to the Early Cambrian. Solactiniella cf. plumata Steiner et al., 1993, with irregular rossellimorph skeletal architecture and regular spicular organization, is found here associated with the above species. Thus, the Anhui assemblage can be considered as intermediate between Atdabanian shallow-water communities of hexactinellids with irregular skeletons and the Middle Cambrian deepwater sponge facies characterized by regularly organized Hexactinellida.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.
Vol. 79 • No. 6