Sentences with phrase «fossil shark teeth»
Examine tide pools, pull seine net, measure salinity, observe animal adaptations, find fossil shark teeth, and much more.
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The site is now kept quiet from all but scientists — poachers have already trawled nearby areas, on the prowl for fossil shark teeth.
Not exact matches
Within the fossils, there were loads of juvenile shark teeth.
The holes seemed to have been made with shark teeth, a number of which were found with the fossils.
Along with his famous Java Man fossils, 19th - century anatomist Eugène Dubois collected shells with small holes that appeared to be made by shark teeth at the site.
The fossil sharks had tiny teeth very similar to a modern - day, plankton - eating megamouth shark.
The team analyzed 30 fossil sand tiger shark teeth exhumed from Banks Island and 19 modern sand tiger shark teeth from specimens caught in Delaware Bay bordered by Delaware and New Jersey.
Sharks belong to a more basal group of vertebrates and their scales have been observed in the fossil record over the course of 450 million years of evolution, so the Sheffield researchers believe this indicates that all vertebrates, whether they live on land or in the sea, share the same developmental programme for skin, teeth and hair that has remained relatively unchanged throughout vertebrate evolution.
They described their shark fossils October 29, complete with lots of tooth photos, in Nature Communications.
Other features of the 2.6 - foot - long shark fossil included a wide mouth, splayed - out gills and various kinds of teeth, reported Live Science.
Ms. Johnson, who teaches in Booneville, learned that the site contained shark teeth and other fossils from the late Cretaceous period about 100 million years ago.