Newsletter
Newsletter Support JNS

Why were dinosaur-era shark teeth found in Jerusalem dig?

80-million-year-old shark teeth discovered in a 2,900-year-old house, nowhere near similar fossils, may have been valued as collectibles.

A prehistoric shark tooth found in Jerusalem’s City of David. Photo by Omri Lernau.
A prehistoric shark tooth found in Jerusalem’s City of David. Photo by Omri Lernau.

Scientists at Jerusalem’s City of David happened upon an unusual finding recently, when they discovered an ancient cache of 29 shark teeth while excavating the basement of a 2,900-year-old home on the site.

Strangely enough, the teeth are millions of years older than the house, dating from the dinosaur era.

Even stranger, these teeth had no business being anywhere near ancient Jerusalem, which is at least 80 kilometers away from the nearest fossils of the same age.

“These fossils are not in their original setting, so they have been moved,” said Thomas Tuetken, the lead researcher from the University of Mainz. “They were probably valuable to someone; we just don’t know why.”

The researchers initially assumed that the shark teeth were remains of food, including fish bones they found, dumped nearly 3,000 years ago.

But when they submitted their paper to Frontiers in Ecology and Evolution, one reviewer pointed out that one of the teeth could only have come from a Late Cretaceous shark that had been extinct for at least 66 million years.

That finding sent the team back to the samples. Measuring organic matter, elemental composition and the crystallinity of the teeth confirmed that their chemical composition indicates an age of roughly 80 million years. Indeed, all 29 shark teeth found were Late Cretaceous fossils—contemporary with dinosaurs.

The current working hypothesis is that the teeth were brought together by collectors. There are no wear marks indicating that they were used as tools, and no drill holes to indicate that they may have been jewelry.

“We know that there is a market for shark’s teeth even today, so it may be that there was an Iron Age trend for collecting such items,” said Tuetken.

The team has since found more shark teeth fossils in other parts of Israel and ancient Judea, strengthening the hypotheses that these teeth were collectables.

“This was a period of riches in the Judean Court,” said Tuetken. “However, it’s too easy to put two and two together to make five. We’ll probably never really be sure.”

This article was first published by Israel21c.

In a draft report delivered to the U.S. president, the commission also called for improved religious accommodations for U.S. service members.
Salah Salem Sarsour, accused of concealing Israeli military court convictions on immigration forms, argued his detention was part of a Trump admin effort to target the pro-Palestinian movement.
CENTCOM stated that the strikes targeted missile, drone and radar facilities after the Islamic Republic attacked a cargo ship in the Strait of Hormuz, calling the assault a violation of the ceasefire.
Now that the primaries are over, “we hope that everyone will come together and be united,” Christine Quinn, chair of the executive committee of the New York State Democratic Party, told JNS.
An Iranian official warned on Friday that the safety of ships passing through the Strait of Hormuz without Iran’s permission “cannot be guaranteed.”
“We have put the train back on the tracks and going in the right direction,” said Yechiel Leiter, Israeli ambassador in Washington. “Final destination? Peace between our two countries.”
Benny Gantz, JNS editor-in-chief Jonathan S. Tobin, Gilad Erdan, Mosab Hassan Yousef, Nissim Black and leading voices in security, diplomacy, media, law and Jewish communal affairs headline the summit’s third day in Jerusalem.