There is a diagram that shows the block and the lower piece that bolts to the block, then the oil pan bolts to that piece and maybe to the block as well.
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That would be the bedplate/girdle what ever you wish to call it. The gasket there is injected. It's not something you really want tot try and fix yourself. To do so you need to remove the oil pan and then the bedplate and scrape (or chemical) remove the old gasket and then put it all back together and inject the new gasket (anaerobic).