| Crinoids, together with brachiopods, dominated the Paleozoic sessile benthos. |
| Total consumption rates on benthos were divided by the littoral area based on hypsometric and limnological data. |
| The benthos surveys conducted in the study area were done mainly in the Varennes and Repentigny islands. |
| On average, collections were made every 3-4 d for phytoplankton and zoo-plankton, 7 d for benthos, and 10-14 d for nekton. |
| The Boreal province persisted from the Jurassic but was less marked, the Tethyan province was well populated with characteristic benthos. |
| Plants and animals arrive as plankton, nekton, fouling organisms, and benthos. |
