I'm moving to Los Angeles (address below). Website, email, and phone will NOT change. RV for sale August 11: 2002 Holiday Rambler Atlantis, class C, 24’, 185,000 miles, heavily used. Excavating storage units brings thrilling reunions with old favorites ... which I must immediately re-stow for shipping, for another rediscovery when really unpacking in LA.

WorldCon Anaheim August 27-31: Dealer booth; Panels on Rubin Obsy, Early Earth [including this Touch Deep Time project], Alien Life, Covid Lessons, Light Pollution, Space Junk.

New page! Free planks for candidates.

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Smarts and smiles! This website rewards time and thought with original ideas and products. Everything here is by and for real humans. Not for “tl;dr” simpletons; suckers seeking instant oversimplifications should retreat back to the rest of the Internet. No artificial intelligence hallucinations, no enshittification, no loyalty bribe, no app.

Email: normsperling@gmail.com‍ ‍Postal: until August 11, 2026: 2625 Alcatraz Avenue #235, Berkeley, California 94705 USA. Starting August 12, 2026: 14335 Sherman Way #322, Van Nuys, California 91405 USA.

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The 4.5-Billion-Year-Long Page

4.5-Billion-Year-Long Page
Formats to be published
now: Cenozoic Era
Anthropocene Epoch specimens.
Holocene Epoch specimens
Pliocene Epoch specimens.
Miocene Epoch placeholder. Specimens to come.
Oligocene Epoch specimens.
Eocene Epoch specimens
Paleocene Epoch placeholder. Specimens to come.
Cretaceous/Tertiary [Paleogene] Extinction.
Late Cretaceous specimens.
Early Cretaceous Epoch A specimens.
Early Jurassic Epoch A specimens
Late Triassic Epoch A specimens
Early Cretaceous Epoch B specimens.
Late Jurassic Epoch specimens
Middle Jurassic Epoch specimens
Early Jurassic Epoch B specimens
Late Triassic Epoch B specimens
Permian Triassic: The Great Dying
Lopingian Epoch specimens
Guadalupian Epoch specimens
Cisuralian Epoch specimens
Late Pennsylvanian Epoch specimens: colorful flint.
Middle Pennsylvanian Epoch specimens
Early Pennsylvanian Epoch specimens
Late Mississippian Epoch specimens
Middle Mississippian Epoch specimens
Early Mississippian Epoch A specimens
Early Mississippian Epoch B specimens
Late Devonian Epoch specimens
Middle Devonian Epoch specimens
Early Devonian Epoch specimens
Pridoli Epoch specimens
Ludlow Epoch specimens
Wenlock Epoch specimens
Llandovery Epoch specimens
Late Ordovician Epoch specimens
Middle Ordovician Epoch specimens
Early Ordovician Epoch specimens
Furongian Epoch A specimens
Furongian Epoch B specimens
Miaolingian Epoch placeholder. Specimens to come.
Cambrian Series 2 placeholder. Specimens to come.
Terreneuvian Epoch specimens
Border of Precambrian
Ediacaran Epoch specimens
Cryogenian Period specimens
Tonian Period A specimens
Tonian Period B specimens
Stenian Period specimens
Ectasian Period placeholder. Specimens to come.
Calymmian Period specimens
Statherian Period specimens
Orosirian Period A specimens
Orosirian Period B specimens
Rhyacian Period specimens
Siderian Period placeholder. Specimens to come.
Neoarchean Era specimens
Mesoarchean Era placeholder. Specimens to come.
Paleoarchean Era A specimens
Paleoarchean Era B specimens
Eoarchean Era. Beyond this project.
Hadean Eon. Beyond this project.