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Ammonite Fossil

PRODUCT TYPE: Fossil

1-1.5" ammonite fossil displayed in an acrylic case.

A perfect addition for your fossil collection.

$12.00$7.00

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Ammonite Fossil

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FOSSIL DETAILS
TIME SCALE
further research
informational video
online resources
CUSTOMER REVIEWS
FOSSIL DETAILS

Specimen: Ammonite Fossil

Genus/Species: Perisphinctes
Era: Jurassic
Age: 200000000
Location: Morocco
Size: 1"-1.5"

Notes:

TIME SCALE

This table contains the geological time periods of the past 2.5 billion years on Earth to aid in understanding age immense age of these fossils.

(Ma = Mega-annum = 1,000,000 years)
EON ERA PERIOD EXTENT (Ma) DURATION (Ma)
Phanerozoic Cenozoic Quaternary 2.588–Present 2.588+
Neogene 23.03–2.588 20.4
Paleogene 66.0–23.03 42.9
Mesozoic Cretaceous 145.5–66.0 79.5
Jurassic 201.3–145.0 56.3
Triassic 252.17–201.3 50.9
Paleozoic Permian 298.9–252.17 46.7
Carboniferous 358.9–298.9 60
Devonian 419.2–358.9 60.3
Silurian 443.4–419.2 24.2
Ordovician 485.4–443.4 42
Cambrian 541.0–485.4 55.6
Proterozoic Neoproterozoic Ediacaran 635.0–541.0 94
Cryogenian 850–635 215
Tonian 1,000–850 150
Mesoproterozoic Stenian 1,200–1,000 200
Ectasian 1,400–1,200 200
Calymmian 1,600–1,400 200
Paleoproterozoic Statherian 1,800–1,600 200
Orosirian 2,050–1,800 250
Rhyacian 2,300–2,050 250
Siderian 2,500–2,300 200
further research
AMMONITE

Ammonites are an extinct type of cephalopod that lived in Earth’s oceans for over 300 million years.

While they were alive, the ammonoid body dangled out of the large opening of the shell. Ammonites were free swimmers and floaters. They used cavities in the shell for buoyancy. When they died, their shells sank to the sea floor where they preserved easily in the sediment.

Their shells typically form into planispirals, which led to their nickname “snakestones” since they were once thought to be the remains of coiled snakes. This specific specimen is from the genus perisphinctes and lived about 200 million years ago.

Ammonites became extinct in the K-Pg mass extinction event 66 million years ago that ended most life on Earth.

informational video
online resources
CUSTOMER REVIEWS

Customer Reviews

Based on 3 reviews
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T
T. (Oklahoma, United States)
Great

Cute little dude

K
K.

Great item and Excellent Seller!

A
A.L. (Texas, United States)
Lovely Specimen

Received a very well defined specimen about 1 1/2” in diameter. Came in a clear plastic display case that I rather like. Very cool to view the ridges under magnification.

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Ammonite Fossil

Ammonite Fossil

$12.00$7.00