I designed this tapestry for my dad, who is a geologist. It is a (mostly) accurate timeline of the history of the earth.
The scale for most of the tapestry is each row represents two million yeas. However, the scale for the Hadean, Archean and Proterozoic periods is one row for each 40 million years. Otherwise the tapestry would have gone halfway down the street and been mostly fire and brimstone and blue-green algae.
I used a 2mm hook and 4 ply wool. The finished tapestry is 106 cm long and 15 cm wide.
Hadean
600 million years
15 rows
Represented in the tapestry by the newly formed Earth and moon.
Archean
1,500 million years
38 rows
Represented in the tapestry by blue-green algae.
Proterozoic
2,000 million years
50 rows
Represented in the tapestry by three species of Ediacara fauna – charnia, kimberella and dickinsonia.
Cambrian
56 million years
28 rows
Represented in the tapestry by a trilobite, a jellyfish and a worm.
Ordovician
41 million years
21 rows
Represented in the tapestry by arandaspis (an early fish) and orthoceras (an armoured squid-like creature).
Silurian
25 million years
13 rows
Represented in the tapestry by cooksonia (an early land plant) and a sea-scorpion.
Devonian
60 million years
30 rows
Represented in the tapestry by hynerpeton (a genus of amphibian-like tetrapods) and stethacanthus (a primitive shark).
Carboniferous
61 million years
31 rows
Represented in the tapestry by meganeura monyi (a giant dragonfly)
Permian
46 million years
23 rows
Represented in the tapestry by a dimetrodon.
Triassic
51 million years
26 rows
Represented in the tapestry by coelophysis (an early dinosaur).
Jurassic
56 million years
28 rows
Represented in the tapestry by stegosaurus.
Cretaceous
80 million years
40 rows
Represented in the tapestry by tyrannosaurus rex and an early bird.
Paleogene
42 million years
21 rows
Represented in the tapestry by basilosaurus (an early whale).
Neogene
21 million years
11 rows
Represented in the tapestry by panthera blytheae (the oldest big cat fossil ever found).
Quaternary
2.5 million years
1 row
Not represented by anything in the tapestry because one row is not much to work with.
Total is 376 rows