Spiders adorn their burrow entrances with some fantastic creations. They utilise whatever vegetable matter is nearby, and line the structure with silk. The above-ground palisade may be a ‘hide’ from which prey is captured. Some sources suggest the structure may also protect against overland flow in heavy rain.
It is difficult to connect a burrow structure with a particular species. Entrance size of palisades is a guide. Wishbone spiders build something lower and more open, with a visible silken entrance
The following may be candidate genera or species for the structures in the images.
Detailed information is available from the Queensland Museum website: