This lovely specimen of Oncorhynchus nerka, a Pleistocene Sockeye Salmon, is from outcrops along the South Fork Skokomish River, Olympic Peninsula, Washington State, USA.
I'd expected to learn that the locality contained a single or just a few partial specimens, but the fossils beds are abundant with large, 45–70 cm, four-year-old adult salmon concentrated in a beautiful sequence of death assemblages.

This exceptionally well-preserved crinoid, Delgadocrinus oportovinum, was found on October 11, 1905, by Nery Delgado during his work mapping the geology and paleontology of Portugal. 

Crinoids are marine animals in the class Crinoidea. They are echinoderms related to starfish, sea urchins, sea cucumbers and brittle stars. Adult crinoids have a mouth located on the upper surface surrounded by feeding arms. These have feathery pinnules and are spread wide to gather planktonic particles from the water.

Cuticular structure in a Late Maastrichtian crab, Costacopluma mexicana, from deposits near the town of from near Paredón, Ramos Arizpe in what is now southern Coahuila (formerly Coahuila de Zaragoza), north-eastern Mexico. We see this same species in the Upper Cretaceous Moyenne of Northeast Morocco and from the Pacific slope, Paleocene of California, USA. This beauty is in the collection of José F. Ventura‎.

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The festive lassie you see here is an Anglerfish. They always look to be celebrating a birthday of some kind, albeit solo. This party is happening deep in our oceans right now. The wee candle you see on her forehead is a photophore, a tiny bit of luminous dorsal spine. In anglerfish' world, it's highly alluring. The photophore is an adaptation used to attract prey and mates alike.