Period
Silurian
Silurian443.8–419.2 million years ago
Warm shallow seas covered much of eastern Australia. Reefs of coral and bryozoa, trilobites on the sea floor, and graptolites drifting above them. Most of these specimens come from around Yass, NSW.
45 specimens
Favosites sp.
Favosites sp.
Favosites sp.
Rugosa (colonial), gen. indet.
Rugosa (colonial), gen. indet.
Rugosa (solitary), gen. indet.
Rugosa (solitary), gen. indet.
Rugosa (solitary), gen. indet.
Rugosa (solitary), gen. indet.
Rugosa (solitary), gen. indet.
Rugosa (solitary), gen. indet.
Rugosa (solitary), gen. indet.
Rugosa (solitary), gen. indet.
Rugosa (solitary), gen. indet.
Rugosa (solitary), gen. indet.
Rugosa (solitary), gen. indet.
Syringopora sp.
Thamnopora sp.
Thamnopora sp.
Penniretepora sp.
Spinella cf. S. yassensis
Spinella cf. S. yassensis
Gastropoda, gen. indet.
Encrinurus sp.
Odontopleura sp.
Otarion sp.
Proetus and Encrinurus
Proetus sp.
Proetus sp.
Proetus sp.
Proetus sp.
Proetus sp.
Proetus sp.
Proetus sp.
Proetus sp.
Proetus sp.
Crinoidea, gen. indet.
Crinoidea, gen. indet.
Crinoidea, gen. indet.
Crinoidea, gen. indet.
Crinoidea, gen. indet.
Crinoidea, gen. indet.
Graptolithina, gen. indet.
Graptolithina, gen. indet.
Graptolithina, gen. indet.