Sponges-Poriferans-Invertebrates-Collections-NPL-Texas Natural Science Center

Home-NPL \| Home-TNSC Collections Invertebrates Sponges Sponges (poriferans) are one of the very oldest animals. They have been noted in the Precambrian and have been present in the fossil record through to the present day. The collections include hexactinellid (glass) sponges, calcareous sponges and calcified demosponges. Perkins sponge collection: A collection of Cretaceous sponges the work of Bob Perkins. Chaetetids Learn more about poriferans	A wewokellid sponge Gunsight Formation Brown County, Texas
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