The stromatoporoid animal revisited: Building the skeleton
Version of Record online: 9 OCT 2007
Volume 27, Issue 1, pages 1–10, March 1994
How to Cite
STEARN, C. W. and PICKETT, J. W. (1994), The stromatoporoid animal revisited: Building the skeleton. Lethaia, 27: 1–10. doi: 10.1111/j.1502-3931.1994.tb01547.x
- Issue online: 9 OCT 2007
- Version of Record online: 9 OCT 2007
- 19th October, 1992; revised 20th April, 1993.
Modern coralline sponges secrete a skeleton by means of a basal pinacoderm, intracellularly, or inside the soft tissue on an organic matrix The examination of terminal growth surfaces of stromatoporoids indicates that soft tissue in laminate and amalgamate forms occupied the upper galleries and that the skeletal elements were secreted within the soft tissue on an organic matrix. The stromatoporellids and clathrodictyids secreted the skeleton in modules that are homologous to the chambers of a sphinctozoan. In stromatoporellids the module was bounded by a floor that formed the upper layer of the tripatite lamina below and a roof that became the lower layer of the next lamina; it further included the intervening pillars. In clathrodictyids the module had only a roof and pillars, and the laminae are single layers. other stromatoporoids may have secreted their skeletons at the base of the soft tissue and had minimal occupation of the skeleton. ***Stromatoporoid, sphinctozoa, sclerospongiae, sponge, paleobiology.