My guess would be Allocasurina but if you can get any fruit (the nuts) that would be amazing. Alternatively, you can identify species based on the number of 'teeth' between the segments of the leaf, you might need a little hand lens or magnifying class.... maybe you phone can take macro photos?
The below glossy guide gives some more context on identifying differences https://glossyblack.org.au/wp-content/uploads/2017/06/Glossy-Black-Fact-Sheet-5.pdf