Sold out

Urchin Spine Fossils

PRODUCT TYPE: Fossil

Three fossilized urchin spines displayed in an acrylic case.

A perfect addition for your fossil collection.

 

 

Images are representative of the specimens you will receive.

*Last image from the Bulletin of the Museum of Comparative Zoology at Harvard College, 1863.

$12.00

Pickup available at our Tulsa Storefront

Usually ready in 24 hours

Urchin Spine Fossils

Default Title

FOSSIL DETAILS
TIME SCALE
further research
CUSTOMER REVIEWS
FOSSIL DETAILS

Specimen: Urchin Spine Fossils

Genus/Species: Cidaris
Era:
Age:
Location: Morocco
Size: 1"-2"

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
SEA URCHINS

These sea urchin spines are from the Jurassic Period. This makes them between 145 and 201 million years old.

Sea urchins, which comprise the taxonomic class Echinoidea, are some of the oldest organisms on Earth. They first evolved 450 million years ago.

These creatures are widely distributed around the world, but the subgroup these fossils belong to, Cidaridae, primarily live in the abyssal zone of the oceans. Some are even known to live in the frigid waters of Antarctica.

Cidaridae spines form in many different shapes and sizes, including thin needles, fans, bulbs, and more.

These urchins are the only group that do not have skin on their spines. Interestingly, their massive, skinless spines, not only prevent predators from reaching their body, they also provide an ideal surface for sponges, bryozoans, and other tiny sea creatures to make their home.

CUSTOMER REVIEWS

Customer Reviews

Based on 1 review
0%
(0)
100%
(1)
0%
(0)
0%
(0)
0%
(0)
J
J.V. (Florida, United States)
Homeschool Group

We just had our class and I displayed the fossils. The kids loved them and did wish there were more. Very cool to have and talk about.

Free Shipping

All orders of $50 or more qualify for free shipping in the US.

Secure Payments

We accept cards, PayPal, AfterPay, Apple/Google/Meta Pay, and crypto.

Simple Returns

Change your mind? No problem. Enjoy easy returns within 30 days.

Related Collections

We use cookies to help people find our small business and have an enjoyable shopping experience.

Urchin Spine Fossils

Urchin Spine Fossils

$12.00