Platypterygius skull
CMN-P 4412 · Albian, 104 Ma
Exhibit 07 · Lightline · East Wing
Behind the glass of the Open Scan Room, our conservators laser-scan one fossil a night. Watch a 104-million-year-old ichthyosaur skull become forty million measured points, then walk the model before the bone goes back to its drawer.
Platypterygius skull
CMN-P 4412 · Albian, 104 Ma
25,614,208
points captured tonight
02 · What the conservators see
The same screen the night team works from is mirrored onto the gallery wall. Nothing is staged: if a pass drifts, you watch it get rescanned.
Scanned this season
312 specimens
+9 this week
Points tonight
25.6M measured
pass 3 running
Mean deviation
0.038 mm
inside ±0.05 spec
Watching now
38 visitors
cap 60
| Catalogue | Specimen | Points | Status |
|---|---|---|---|
| CMN-P 4412 | Platypterygius skullAlbian, 104 Ma | 25.6M | Scanning |
| CMN-V 1187 | Smilodon fatalis mandiblePleistocene, 13 ka | 11.2M | Meshing |
| CMN-I 0931 | Meganeura wing, slabCarboniferous, 300 Ma | 4.8M | Queued |
| CMN-M 2205 | Narwhal tusk, sinistral whorlCollected 1931 | 9.4M | Published |
| CMN-P 0078 | Walliserops trilobiteDevonian, 400 Ma | 6.1M | Published |
03 · From drawer to light
Lightline exists because most of the collection never leaves its drawers. A scan is the gentlest way we know to let three million specimens be studied without being handled.
A conservator lifts the specimen into a foam cradle cut to its shape the week before. Nitrile gloves, no metal, nothing that warms the bone.
A 450 nm line sweeps the surface while the turntable steps a quarter of a degree. Five passes, five aspects, roughly two hours each.
Overnight the passes are aligned and meshed. Anything outside ±0.05 mm is flagged and rescanned before the model is signed off.
The bone returns to its drawer by morning. The model goes online under CC BY, free to print, measure or teach with.
04 · Visit
Lightline is included with museum admission. Evening scans run late on Thursdays and Fridays; entry is timed so the room never holds more than sixty.