Shark-Tooth Pattern

From Nookipedia, the Animal Crossing wiki

The Shark-Tooth Pattern is a standalone fossil in Animal Crossing: New Horizons.

Shark-Tooth Pattern
Shark-Tooth PatternACNH.jpeg
The Shark-Tooth Pattern in the museum in Animal Crossing: New Horizons.
Scientific name
Selling price 1,000 Bells
Main appearances
Name in other languages

Japanese サメのはのかせき
Simplified Chinese 鲨鱼牙齿化石
French Mandibule d'hélicoprion
Spanish Mandíbula de tiburón
Italian Mandibola di elicoprione
Russian Зубы ископаемой акулы

Korean 상어 이빨 화석
Traditional Chinese 鯊魚牙齒化石
Quebec French Mandibule d'hélicoprion
Latin American Spanish Mandíbula de tiburón
German Haizahnspirale
Dutch Haaientandkrans

Not to be confused with the Shark Tooth.


At the museum[edit]

In New Horizons[edit]

When donating to Blathers or selecting "Tell me about this!" in New Horizons, he will provide the following information about the fossil:

"This shark-tooth pattern comes from the lower jaw of an ancient shark of the genus Helicoprion. Its teeth seem to have grown in a distinctive arrangement rather disturbingly termed a "tooth-whorl". I say "seem" because shark skeletons are made not of bone, but cartilage, except for their teeth. Consequently, their bodies are never preserved as fossils, and questions about their jaws remain unanswered. The size and placement in the stone of the shark's teeth are actually the only things we have to work with. Sometimes in research we must maintain a stiff upper lip, even in the absence of a stiff lower jaw!"

The Shark-Tooth Pattern can be found in the first room of the fossil exhibit in the museum.

As an item[edit]

In New Horizons[edit]


Shark-Tooth Pattern
Interactable No
Sell Price   1000 Bells

Real-world information[edit]

Helicoprion was a shark-like fish that lived off the southwestern coast of Gondwana in the Early to Middle Permian. While it is more closely related to sharks and other cartilaginous fishes than the bony fishes, its closest living relatives are actually the chimaeras, or rat fish. Like most cartilaginous fish, Helicoprion's body would have decayed quickly. As such, the only fossils found so far have been those of its tooth whorl. First described in 1899, the tooth whorl had baffled paleontologists for over a century, with ideas for what part of the body it was on ranging from the snout to the dorsal fin, to (possibly the most famous early idea) the outside of the lower jaw. Finally, in 2013, researchers working with related species discovered that the tooth whorl in fact sits inside the lower jaw. The whorl grows as Helicoprion ages, with newer teeth growing on the outside while the older teeth get pushed towards the middle of the spiral.

  More information on this topic is available at Wikipedia.

Names in other languages[edit]


  상어 이빨 화석
Sang-eo Ippal Hwaseok

鲨鱼牙齿化石 / 鯊魚牙齒化石

  Зубы ископаемой акулы

  Haaientandkrans Shark tooth wreath

  Haizahnspirale Shark tooth spiral

  Mandíbula de tiburón

  Mandibule d'hélicoprion

  Mandibola di elicoprione