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D
Dunkleosteus
A WALKING COLLECTION GAME
Hush Atlas
Walk around your city and collect the creatures, rocks and places that were here before you. The phone reads the real rock layers under your feet, and each reading you take becomes a card.
17
TIME INTERVALS
4567
MILLION YEARS DEEP
3
THINGS TO COLLECT
Collect what lived here before you
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J
Stegosaurus
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C
Limestone, Carboniferous
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Pg
Paraceratherium
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Tyrannosaurus
Steps I to V: the rarer it is, the more braces close.
ON THE SCREEN
The instrument in hand: what it shows while you walk, and what it keeps afterwards.
01 Map
The ground around you, marked point by point. Filled marks are readings already taken; empty ones are still there to walk to.
MAP
01
ROCK UNDER YOUR FEET
Under any point of a city there is rock, and that rock has an age and a type. Both come from Macrostrat — survey data, not invention. Walk into the next district and the numbers change: a city is not one geology but several, laid side by side.
K
Cretaceous
- ROCK TYPE
- sedimentary
- FORMATION
- —
Pg
N
Q
three periods
- ROCK TYPE
- —
- FORMATION
- —
A dash means not measured, not an error. A wider bar means a wider dating range.
02
WHAT A READING BECOMES
Every card comes from one of two places. A find rests on a fossil logged here, and carries the record it came from. A reconstruction has no such record: it is what the age and type of the rock allow, and the card says so on its face.
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D
Dunkleosteus
CONFIRMED BY RECORD
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Pg
Paraceratherium
INFERRED FROM ROCK
- I
- II
- III
- IV
- V
Rarity is counted, not assigned: the step follows how scarce a reading like this is.
SOLID
Something is on record: a fossil logged with its source, or a layer on the survey map.
DASHED
No record here. Inferred from the age and environment of the rock.
The cards on this page are layout samples, not anyone's collection. The genera, rocks and eras are real; the steps, counts and layers on them are set by hand to show how a card is built. Silhouettes: PhyloPic, CC0.
03
READINGS TAKEN ON SITE
A reading is taken where you are standing, and nowhere else. What lies under one street is not what lies under the next, so the collection grows by walking — an hour outside, a district you had no reason to cross before.
READING TAKEN
NOT READ YET
04
DATA SOURCES
None of it is invented. Everything the game shows about rock, age and species comes from open scientific databases, credited here.
Streets, paths, parks, walking reachability
© OpenStreetMap contributors · ODbL 1.0 ·
license