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an emergent
website design
by
peter jay stein, md, ma
atmosphere
asthenosphere
lithosphere
regolith
biosphere
hydrosphere
This 54 page synopsis of the evolution
of the Earth, the origin and progression of life, and the
emergence of humans as descendants of the hominin lineage, divides the last 4.57 billion years into progressively overlapping, imagistic, time segments, to outline our place in biological existence.
magnetosphere
ionosphere
FIFTEEN
Emergent Unicellular Life I
adapted from Biology, 6th Ed., 2002, and Vertebrates, 6th Ed.,2012
unicellular flagellate
parazoa:
radiata (radial symmetry)
eumetazoa
sponges (porifera)
bilateria
cnidaria - diploblastic tissue
ctenophora - diploblastic tissue
platyhelminthes - triploblastic organs
- acoelomate
protostome coelomates
deuterostome coelomates
chordata
vertebrata
hemichordata
echinodermata
ecdysozoan
lophotrochozoan
DEUTEROSTOMES
ECHINODERMATA
VERTEBRATES
CHORDATES
HEMICHORDATES
CEPHALOCHORDATES
UROCHORDATES
PROTOSTOMES
ECDYSOZOAN
LOPHOTROCHOZOAN
WORMS
ARTHROPODS
SPIDERS
LOBSTERS
INSECTS
CRABS
CENTIPEDES
BRACHIOPODS
WORMS
MARINE
RIBBON
FLAT
EARTH
MOLLUSKS
CLAMS
SQUID
SNAILS
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