Fossils for Sale - High-quality BRITISH and WORLDWIDE Fossils. An impressive selection of fossils, including Ammonites, Trilobites, Belemnites, Fossil Fish, Fossil Shark Teeth, Fossilised Insects in Amber, Dinosaurs, and Reptiles. UK Fossils was formed in 1988 and collects and preps our own fossils in the heart of the Jurassic Coast, collecting fossils from Lyme Regis, Charmouth and Somerset. Our passion for fossils is reflected in our carefully curated collection, which includes some of the rarest and most unique specimens available.

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RARE Triassic Ammonite Fossil – CERATITES NEVADENSIS – Middle Triassic – USA

£18.00

This listing showcases a RARE and authentic Triassic ammonite fossil of the species Ceratites nevadensis, originating from the Middle Triassic strata of the western United States. This distinctive fossil is a prime example of ceratitid ammonoids, an important evolutionary group of cephalopods from the Triassic period.

Fossil Type & Species:

  • Type: Fossilised Ammonite (extinct marine mollusc)
  • Species: Ceratites nevadensis

Geological Context:

  • Era: Mesozoic
  • Period: Triassic
  • Stage: Likely Anisian or Ladinian (Middle Triassic)
  • Locality: USA (precise locality data limited; Nevada region likely based on species name)
  • Depositional Environment: Shallow marine shelf, typically carbonate-rich environments with episodic influxes of siliciclastics

Morphological Features:

  • Evolute shell structure with broad whorls and a low keel
  • Characteristic ceratitic suture lines with rounded lobes and saddles
  • Medium to large size ammonite with finely ribbed shell surface

Scientific Notes:

  • Ceratites nevadensis is an important ammonoid species used in biostratigraphic correlation of Middle Triassic marine sequences in the western USA.
  • The genus Ceratites is renowned for its transitional suture patterns, bridging earlier goniatites and later ammonites.
  • This fossil reflects marine evolutionary recovery and radiation following the end-Permian mass extinction.

Taxonomy:

  • Order: Ceratitida
  • Superfamily: Ceratitoidea
  • Family: Ceratitidae
  • Formally Described By: Commonly referenced in regional Middle Triassic ammonoid faunal studies; detailed taxonomic authority may vary depending on reference

Authenticity & Display:

All of our fossils are 100% Genuine Specimens and come with a Certificate of Authenticity. The fossil shown in the photograph is the exact piece you will receive.

Please refer to the image for exact sizingScale cube = 1cm.

An exceptional piece for collectors and enthusiasts of Mesozoic marine life, Triassic ammonoids, or key evolutionary transitions within cephalopods.

(Actual as seen)

Out of stock

SKU: SF0290 Category:

Description

This listing showcases a RARE and authentic Triassic ammonite fossil of the species Ceratites nevadensis, originating from the Middle Triassic strata of the western United States. This distinctive fossil is a prime example of ceratitid ammonoids, an important evolutionary group of cephalopods from the Triassic period.

Fossil Type & Species:

  • Type: Fossilised Ammonite (extinct marine mollusc)
  • Species: Ceratites nevadensis

Geological Context:

  • Era: Mesozoic
  • Period: Triassic
  • Stage: Likely Anisian or Ladinian (Middle Triassic)
  • Locality: USA (precise locality data limited; Nevada region likely based on species name)
  • Depositional Environment: Shallow marine shelf, typically carbonate-rich environments with episodic influxes of siliciclastics

Morphological Features:

  • Evolute shell structure with broad whorls and a low keel
  • Characteristic ceratitic suture lines with rounded lobes and saddles
  • Medium to large size ammonite with finely ribbed shell surface

Scientific Notes:

  • Ceratites nevadensis is an important ammonoid species used in biostratigraphic correlation of Middle Triassic marine sequences in the western USA.
  • The genus Ceratites is renowned for its transitional suture patterns, bridging earlier goniatites and later ammonites.
  • This fossil reflects marine evolutionary recovery and radiation following the end-Permian mass extinction.

Taxonomy:

  • Order: Ceratitida
  • Superfamily: Ceratitoidea
  • Family: Ceratitidae
  • Formally Described By: Commonly referenced in regional Middle Triassic ammonoid faunal studies; detailed taxonomic authority may vary depending on reference

Authenticity & Display:

All of our fossils are 100% Genuine Specimens and come with a Certificate of Authenticity. The fossil shown in the photograph is the exact piece you will receive.

Please refer to the image for exact sizingScale cube = 1cm.

An exceptional piece for collectors and enthusiasts of Mesozoic marine life, Triassic ammonoids, or key evolutionary transitions within cephalopods.

Additional information

Era

Triassic

Origin

USA

Triassic Information

The Triassic Period (252–201 million years ago) marked the beginning of the Mesozoic Era, following the Permian-Triassic mass extinction, the most severe extinction event in Earth's history. The climate was hot and dry, with vast deserts and little polar ice. Life slowly recovered, leading to the rise of the first dinosaurs, pterosaurs (flying reptiles), and early mammals. Reptiles, including large archosaurs (ancestors of crocodiles and dinosaurs), dominated both land and sea. In the oceans, ichthyosaurs and plesiosaurs thrived alongside ammonites and early coral reefs. The first true conifers and ginkgo trees spread across the land. The period ended with another mass extinction, paving the way for the Jurassic and the golden age of dinosaurs.

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