The fossils concerned were rare 140 million year old fossil fish, from Jurassic freshwater lake deposits in the Northeast.
(The fossils; concerned; ) (The fossils concerned; were; rare 140 million year old fossil fish, from Jurassic freshwater lake deposits in the Northeast)
The fossils The fossils concerned
concerned were
rare 140 million year old fossil fish, from Jurassic freshwater lake deposits in the Northeast