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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ARCESTES galeiformis Fossil Ammonite – Middle Triassic – Peloponnes, Greece

£36.00

This listing features a well-preserved Fossil Ammonite of the species Arcestes galeiformis, sourced from Middle Triassic marine strata in the Peloponnes region of Greece. Arcestes is an extinct genus of ammonoid cephalopods distinguished by its unique morphology and significance in Mesozoic marine ecosystems.

Fossil Type & Species:

  • Type: Fossilised Ammonite (Cephalopod)
  • Genus: Arcestes
  • Species: Arcestes galeiformis

Geological Context:

  • Era: Mesozoic
  • Period: Triassic
  • Stage: Middle Triassic (Ladinian)
  • Locality: Peloponnes, Greece
  • Depositional Environment: Shallow marine carbonate platform with restricted basin conditions, typical of the Tethyan realm

Morphological Features:

  • Broadly discoidal, almost globular involute shell
  • Very shallow umbilicus and smooth flanks
  • Suture lines relatively simple compared to later ammonoids
  • Robust, symmetrical body chamber with gently rounded venter

Scientific Notes:

  • Arcestes is often used in biostratigraphic correlation of Middle Triassic sequences across Europe
  • Shell shape and compact morphology are thought to relate to a slow-swimming or benthic lifestyle
  • Named for its distinct “boat-shaped” (galeiform) appearance

Taxonomy:

  • Order: Ceratitida
  • Superfamily: Arcestaceae
  • Family: Arcestidae
  • Formally Described By: Mojsisovics, 1882

Authenticity & Display:

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

Please refer to the image for full sizing detailsscale cube = 1cm.

This striking ammonite fossil makes a valuable addition to any palaeontology collection or educational exhibit, highlighting the diversity of cephalopods during the Triassic recovery period.

(Actual as seen)

Out of stock

SKU: SF0270 Category:

Description

This listing features a well-preserved Fossil Ammonite of the species Arcestes galeiformis, sourced from Middle Triassic marine strata in the Peloponnes region of Greece. Arcestes is an extinct genus of ammonoid cephalopods distinguished by its unique morphology and significance in Mesozoic marine ecosystems.

Fossil Type & Species:

  • Type: Fossilised Ammonite (Cephalopod)
  • Genus: Arcestes
  • Species: Arcestes galeiformis

Geological Context:

  • Era: Mesozoic
  • Period: Triassic
  • Stage: Middle Triassic (Ladinian)
  • Locality: Peloponnes, Greece
  • Depositional Environment: Shallow marine carbonate platform with restricted basin conditions, typical of the Tethyan realm

Morphological Features:

  • Broadly discoidal, almost globular involute shell
  • Very shallow umbilicus and smooth flanks
  • Suture lines relatively simple compared to later ammonoids
  • Robust, symmetrical body chamber with gently rounded venter

Scientific Notes:

  • Arcestes is often used in biostratigraphic correlation of Middle Triassic sequences across Europe
  • Shell shape and compact morphology are thought to relate to a slow-swimming or benthic lifestyle
  • Named for its distinct “boat-shaped” (galeiform) appearance

Taxonomy:

  • Order: Ceratitida
  • Superfamily: Arcestaceae
  • Family: Arcestidae
  • Formally Described By: Mojsisovics, 1882

Authenticity & Display:

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

Please refer to the image for full sizing detailsscale cube = 1cm.

This striking ammonite fossil makes a valuable addition to any palaeontology collection or educational exhibit, highlighting the diversity of cephalopods during the Triassic recovery period.

Additional information

Era

Triassic

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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