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3.5" Jurassic Ammonite (Hildoceras?) Fossil - Morocco
This is a 3.5" wide ammonite from jebel Bou Rharraf in Talsint, Morocco. The ammonite comes from a Lower Jurassic-aged deposit and would be approximately 180 million years old. This specimen is part of a newly discovered deposit which has produced a variety of ammonite species to date.
This ammonite has yet to be described, though its characteristics suggest its from the family Hildoceratidae. This family of ammonites is characterized by "a narrow discoidal evolute shape, a keeled venter, concave ribs along the outer flanks, and a shallow spiral groove running along smooth inner flanks. The whorls slightly overlap and their cross sections are compressed. The ventral keel is bordered on either side by a shallow groove." All of this can be seen in most of the well preserved specimens, and parts of these characteristics can be seen in the specimens with lesser preservation quality. Because of this we have left the genus Hildoceras with a question mark and no species.
Comes with an acrylic display stand.
This ammonite has yet to be described, though its characteristics suggest its from the family Hildoceratidae. This family of ammonites is characterized by "a narrow discoidal evolute shape, a keeled venter, concave ribs along the outer flanks, and a shallow spiral groove running along smooth inner flanks. The whorls slightly overlap and their cross sections are compressed. The ventral keel is bordered on either side by a shallow groove." All of this can be seen in most of the well preserved specimens, and parts of these characteristics can be seen in the specimens with lesser preservation quality. Because of this we have left the genus Hildoceras with a question mark and no species.
Comes with an acrylic display stand.
Ammonites were predatory cephalopod mollusks that resembled squids with spiral shells. They are more closely related to living octopuses, though their shells resemble that of nautilus species. True ammonites appeared in the fossil record about 240 million years ago during the Triassic Period. The last lineages disappeared 65 million years ago at the end of the Cretaceous.
What an ammonite would have looked like while alive.
What an ammonite would have looked like while alive.
SPECIES
Hildoceras?
LOCATION
Talsint, Jebel Bou Rharraf, Morocco
SIZE
3.5" wide
CATEGORY
SUB CATEGORY
ITEM
#289701
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