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Manitoba is well-known for its fossil record, including the fossil-filled, world-famous Ordovician-aged Tyndall Stone and the ...
Most fish fossils sealed in siltstone still preserve their living posture with the back on top ... Sansom says that the Chongqing site probably resembles other Ordovician and Silurian fish sites: ...
A newfound fossil of a jawless fish is the oldest known vertebrate cranium preserved in 3D. The 455 million-year-old find could illuminate how vertebrate heads evolved.
The fossil site, dated from 439 million to 436 million years ago, includes a revealing variety of never-before-seen small, toothy, bony fish species. The diversity of the fossils at this one site ...
The research also showed that structures considered to be teeth in fossils from the Cambrian period (485–540 million years ago) were similar to features in the armor of fossil invertebrates, as ...
New research on fossils shows teeth first evolved as sensory tissue in the armored exoskeletons of early fish Sensitive teeth ... The new study, published this week in Nature, confirms that these ...
The new study, published this week in Nature, confirms that these structures in an early vertebrate fish from the Ordovician period about 465 million years ago contained dentine, and likely helped ...
Teeth first evolved as sensory organs, not for chewing, according to a new analysis of animal fossils.The first tooth-like structures seem to have been sensitive nodules on the skin of early fish ...
Scans of ancient fish revealed that the sensitive inner layer of teeth may have developed from sensory tissues in the protective armor of these fish, which may explain the high sensitivity of today’s ...
The new study, published in Nature, confirms that these structures in an early vertebrate fish from the Ordovician period about 465 million years ago contained dentin, and likely helped the ...