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A fossil specimen of Onychodus from Western Australia was found with a placoderm fish half its length logged in its throat. [20] [21] This interesting find was described and illustrated by Dr. John A. Long. [4] [19] [21] The pectoral fins were strong enough for the animal to "walk" around the sea floor in search of a hiding place between coral ...
Tiktaalik generally had the characteristics of a lobe-finned fish, but with front fins featuring arm-like skeletal structures more akin to those of a crocodile, including a shoulder, elbow and wrist. The fossil discovered in 2004 did not include the rear fins and tail, which were found in other specimens.
Helicoprion is a genus of extinct shark-like [1] eugeneodont fish. Almost all fossil specimens are of spirally arranged clusters of the individuals' teeth, called "tooth whorls", which in life were embedded in the lower jaw. As with most extinct cartilaginous fish, the skeleton is mostly unknown.
Holocephali ("complete heads"), sometimes given the name Euchondrocephali ("true cartilage heads"), is a subclass of cartilaginous fish in the class Chondrichthyes. [1] The earliest fossils are of teeth and come from the Devonian period.
Researchers said they looked at ancient fish teeth from the carp family recovered from Gesher Benot Ya’aqov, a waterlogged area that once sat on the shore of the paleolithic lake Hula in the ...
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Living Fossil: the Story of the Coelacanth. W. W. Norton. Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Archived from the original on 20 February 2009; Weinberg, Samantha (1999). A Fish Caught in Time: The Search for the Coelacanth. Fourth Estate. Bruton, Mike (2015).
The teeth sit outside of the mouth, interlocking, with two large lower fangs that curl upward reaching past the fish’s eyes. Because its jaw can unhinge, the viperfish can eat large prey for its ...