Large saltwater crocodile entrapped / entangled in crab pot and subsequently killed. Reported in news media.
https://www.theguardian.com/australia-news/2021/feb/10/king-croc-of-port-douglas-dies-after-crab-pot-encounter
Spider was inside a curled up leaf that was stuck together with web.
Pyrgomorphidae: Atractomorpha similis or A. australis - Green Grass Pyrgomorph