Hammerhead shark fossils found in Spain

Adam Khor

The article is in Spanish, but basically, they found teeth of a hammerhead shark, possibly Sphyrna lewini, dating back to 5.5 million years ago.

http://www.efeverde.com/contenidos/noticias/hallan-los-primeros-fosiles-de-tiburon-martillo-de-5-5-millones-anos

Rubecula

Thanks Adam good find.

I have two points
1, I can't speak Spanish. So I dunno what they are actually saying.

2. How do they know the teeth are from a Hammerhead shark? I can understand knowing they're are from a shark, but I have trouble getting my head around how they know the shark was hammerhead. If they had found fossil evidence of it being a hammerhead they would have said a Hammerhead shark fossil, not shark teeth from a Hammerhead, if you understand what I mean.

Adam Khor

Rubecula wrote: »

Thanks Adam good find.

I have two points
1, I can't speak Spanish. So I dunno what they are actually saying.

2. How do they know the teeth are from a Hammerhead shark? I can understand knowing they're are from a shark, but I have trouble getting my head around how they know the shark was hammerhead. If they had found fossil evidence of it being a hammerhead they would have said a Hammerhead shark fossil, not shark teeth from a Hammerhead, if you understand what I mean.

Basically, they're saying what I said above Not much else really. They think it's a hammerhead because they are identical to those of Sphyrna lewini which still lives today.
No, they didn´t find the hammer XD

Galvasean

For those interested, the wiki page for the scalloped hammerhead (the type this is believed to be):
http://en.wikipedia.org/wiki/Scalloped_hammerhead