RARE 11" Paracalycoceras weistii Fossil Ammonite | Albian Cretaceous | Fort Worth Texas USA | Certified Authentic Specimen
£ 600.00
This listing presents a RARE 11-inch fossil ammonite, identified as
Paracalycoceras weistii, from the Albian Stage of the Lower Cretaceous Period, discovered in Fort Worth, Texas, USA. This exceptional fossil specimen showcases the stunning preservation and coiling morphology typical of mid-Cretaceous ammonites and is ideal for collectors or educational display.Geological Details:
• Locality: Fort Worth, Texas, United States
• Geological Period: Cretaceous
• Geological Stage: Albian (~113 to 100.5 million years ago)
• Formation: Walnut Formation / Duck Creek Formation (commonly associated)
• Depositional Environment: Shallow marine shelf environments rich in carbonate sedimentation from epicontinental seasPaleontological Context: Paracalycoceras weistii is a prominent mid-Cretaceous ammonite species belonging to the Acanthoceratidae Family within the Desmoceratoidea Superfamily. These ammonites were nektonic carnivores, swimming in warm, shallow seas that covered much of what is now North America.
• Order: Ammonitida
• Superfamily: Desmoceratoidea
• Family: Acanthoceratidae
• Genus: Paracalycoceras
• Species: weistii
• Described by: Felix Weist (early 20th century)
• Biozone: Albian ammonite zones (possibly Mortoniceras inflatum or Dipoloceras cristatum zones depending on exact stratigraphy)Morphological Features:
• Involute, planispiral shell with an impressive diameter of 11 inches
• Prominent ribbing and strong tuberculation (nodular ornamentation along flanks)
• Suture lines and keels possibly visible depending on preparation
• Preservation shows natural mineral replacement in a calcareous matrixNotable Attributes:
• From a classic Texan locality with a strong reputation for Cretaceous marine fossils
• Rare to find complete, large ammonites from this genus and locality
• Stunning spiral form and relief suitable for wall-mounting or freestanding displayAuthenticity & Presentation:
• 100% genuine fossil, not a cast or reconstruction
• Supplied with a Certificate of Authenticity
• You will receive exactly the specimen shown in the photographs
• Scale cube = 1cm visible for precise size reference All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
Paracalycoceras weistii, from the Albian Stage of the Lower Cretaceous Period, discovered in Fort Worth, Texas, USA. This exceptional fossil specimen showcases the stunning preservation and coiling morphology typical of mid-Cretaceous ammonites and is ideal for collectors or educational display.Geological Details:
• Locality: Fort Worth, Texas, United States
• Geological Period: Cretaceous
• Geological Stage: Albian (~113 to 100.5 million years ago)
• Formation: Walnut Formation / Duck Creek Formation (commonly associated)
• Depositional Environment: Shallow marine shelf environments rich in carbonate sedimentation from epicontinental seasPaleontological Context: Paracalycoceras weistii is a prominent mid-Cretaceous ammonite species belonging to the Acanthoceratidae Family within the Desmoceratoidea Superfamily. These ammonites were nektonic carnivores, swimming in warm, shallow seas that covered much of what is now North America.
• Order: Ammonitida
• Superfamily: Desmoceratoidea
• Family: Acanthoceratidae
• Genus: Paracalycoceras
• Species: weistii
• Described by: Felix Weist (early 20th century)
• Biozone: Albian ammonite zones (possibly Mortoniceras inflatum or Dipoloceras cristatum zones depending on exact stratigraphy)Morphological Features:
• Involute, planispiral shell with an impressive diameter of 11 inches
• Prominent ribbing and strong tuberculation (nodular ornamentation along flanks)
• Suture lines and keels possibly visible depending on preparation
• Preservation shows natural mineral replacement in a calcareous matrixNotable Attributes:
• From a classic Texan locality with a strong reputation for Cretaceous marine fossils
• Rare to find complete, large ammonites from this genus and locality
• Stunning spiral form and relief suitable for wall-mounting or freestanding displayAuthenticity & Presentation:
• 100% genuine fossil, not a cast or reconstruction
• Supplied with a Certificate of Authenticity
• You will receive exactly the specimen shown in the photographs
• Scale cube = 1cm visible for precise size reference All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
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