Procoptodon goliah
https://australian.museum/learn/australia-over-time/extinct-animals/procoptodon-goliah/

Procoptodon goliah

Palorchestes azeal
https://australian.museum/learn/animals/mammals/palorchestes-azeal/

Palorchestes azael was an unusual marsupial herbivore with retracted nasal bones on the skull, suggesting that it may have had a small trunk like that of tapirs. Palorchestes also had powerful forelimbs and large, compressed claws that it may have used to pull up shrubs or tear at the bark of trees.

Kronosaurus queenslandicus
https://australian.museum/learn/australia-over-time/extinct-animals/kronosaurus-queenslandicus/

Kronosaurus queenslandicus

Bigeye Barracuda, Sphyraena forsteri (Cuvier, 1829)
https://australian.museum/learn/animals/fishes/bigeye-barracuda-sphyraena-forsteri-cuvier-1829/

Bigeye Barracuda, Sphyraena forsteri (Cuvier, 1829)

Eastern Blue Groper, Achoerodus viridis (Steindachner, 1866)
https://australian.museum/learn/animals/fishes/eastern-blue-groper-achoerodus-viridis/

Eastern Blue Groper, Achoerodus viridis (Steindachner, 1866)

Kolopsis torus
https://australian.museum/learn/australia-over-time/extinct-animals/kolopsis-torus-/

Kolopsis torus

Sailfin Tang, Zebrasoma veliferum (Bloch, 1795)
https://australian.museum/learn/animals/fishes/sailfin-tang-zebrasoma-veliferum-bloch-1797/

Sailfin Tang, Zebrasoma veliferum (Bloch, 1795)

Riversleigh Rainforest Koala
https://australian.museum/learn/australia-over-time/extinct-animals/nimiokoala-greystanesi/

Nimiokoala greystanesi was a small koala from the early Miocene of northern Australia. It had a longer snout than the living koala but was only about a third of its size. Nimiokoala is represented by a well preserved skull, a significant discovery since koalas are rare in the fossil record.

Baru darrowi
https://australian.museum/learn/australia-over-time/extinct-animals/baru-darrowi/

Baru darrowi, a massive crocodile from the Miocene of northern Australia, was one of the largest of the mekosuchines, an extinct group of Australasian crocodiles. Although about as large as the living Saltwater Crocodile, Baru may have been more terrestrial in its habits.

Red Little Gurnard Perch, Maxillicosta raoulensis (Eschmeyer and Poss, 1976)
https://australian.museum/learn/animals/fishes/red-little-gurnard-perch-maxillicosta-raoulensis/

Red Little Gurnard Perch, Maxillicosta raoulensis (Eschmeyer and Poss, 1976)