Chelonia

Galapagos

Chelonia

Marine reptiles

http://news.nationalgeographic.com.au/news/2008/02/photogalleries/seamonster-pictures/index.html

http://www.oceansofkansas.com/FieldGuide3.html

Plesiosaur

These animal phyla are also divided into 2 simple groups: invertebrates and vertebrates. The latter has an internal axial skeleton but the former does not.

INVERTEBRATES - Invertebrates are soft-bodied animals that lack a rigid, internal skeletal support, they are protected in some of these organisms by an exoskeleton. Exoskeletons are composed of various materials from limestone, silica, to chitin.

Mollusca - Because the invertebrate grouping is not based on lineage or common ancestry, most animals on earth are in this group. In fact, 90% of extinct and living animals are invertebrates. Today here are 33 invertebrate phyla and nearly all of them have marine relatives. Only the phylum Chordata is unusual because its members are recognized by the presence of a stiff rod called the notochord during embryonic development. A few of them lose the notochord as adults. These are the invertebrate chordates. But the 95% that retain it into adulthood are called vertebrates.

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Deepsea fish

Marine reptilies

Carnivora - http://www.1911encyclopedia.org/Carnivora

Carnivora - Marine Otter

marine carnivora - sea lion

carnivora: Grey seal on Sable Island

Cetacea - http://www.britannica.com/EBchecked/topic-art/641397/67462/Whales-Click-on-an-individual-drawing-to-see-a-larger

Cetacea

Sirenia