Rare Block of Fossil Heteromorph Uncoiled Ammonites (Sciponoceras baculoides) – Upper Albian, Lower Cretaceous, Pénzesgyőr Hungary

Description

A rare fossil block containing heteromorph uncoiled ammonites (Sciponoceras baculoides), from the Upper Albian Stage of the Lower Cretaceous, collected at Pénzesgyőr, Hungary. This piece is highly collectable, preserving a group of ammonites that display the distinctive uncoiled morphology characteristic of heteromorph forms. The fossil shown in the photographs is the exact one you will receive, and it is supplied with a Certificate of Authenticity.

Fossil Type & Species:

• Type: Heteromorph Ammonite (extinct marine cephalopod)
• Species: Sciponoceras baculoides
• Order: Ammonitida
• Superfamily: Turrilitoidea
• Family: Baculitidae

Geological Context:

• Period: Cretaceous
• Epoch/Stage: Lower Cretaceous – Upper Albian (approx. 105 to 100.5 million years ago)
• Biozone: Associated with the Mortoniceras inflatum Zone, an important ammonite biozone in the Albian
• Formation: Albian limestone and marl deposits of Hungary
• Depositional Environment: Marine carbonate shelf with fine sediments, favourable for the preservation of heteromorph ammonites

Locality:

• Region: Pénzesgyőr, Hungary

Morphology & Features:

• Sciponoceras baculoides exhibits a straight to gently curved, elongated shell
• Distinctive uncoiled morphology with fine ribbing and ornamentation
• Unusual form differing from typical coiled ammonites, making it highly desirable for collectors
• Excellent preservation showcasing unique morphology and fine detail

Scientific Notes:

• Sciponoceras baculoides is one of the classic heteromorph ammonites of the Albian, first described in the 19th century
• Its rare uncoiled form reflects evolutionary adaptations in ammonites during the mid-Cretaceous

Notable Details:

• Rare fossil block preserving multiple uncoiled ammonites
• Excellent preservation with strong natural detail
• 100% genuine, natural fossil – no restoration
• Scale Reference: Each square or cube = 1cm. Please see photographs for full sizing

Authenticity & Guarantee: All of our fossils are 100% genuine, responsibly sourced, and professionally curated. Each specimen is supplied with a Certificate of Authenticity. The fossil pictured is the exact one you will receive.

This Sciponoceras baculoides fossil block is a rare and scientifically important specimen from the Upper Albian of Hungary – an exceptional piece for collectors, researchers, or natural history displays.