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Rare Fossil Heteromorph Uncoiled Ammonite (Hypoturrilites mantelli) – Lower Cenomanian, Upper Cretaceous, Pitstone UK – Genuine + COA
£18.00
A rare heteromorph uncoiled ammonite (Hypoturrilites mantelli), from the Lower Cenomanian Stage of the Upper Cretaceous, collected at Pitstone, United Kingdom. This specimen is highly collectable, displaying the distinctive turreted and helically uncoiled morphology typical of Hypoturrilites. The fossil pictured 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: Hypoturrilites mantelli
- Order: Ammonitida
- Superfamily: Turrilitoidea
- Family: Turrilitidae
Geological Context:
- Period: Cretaceous
- Epoch/Stage: Upper Cretaceous – Lower Cenomanian (approx. 100.5 to 97 million years ago)
- Biozone: Associated with Mantelliceras mantelli Zone, a key ammonite horizon of the Lower Cenomanian
- Formation: Chalk deposits of the Cenomanian stage (White Chalk Subgroup, southern England)
- Depositional Environment: Shallow marine chalk seas with calcareous sedimentation, excellent for ammonite preservation
Locality:
- Region: Pitstone, United Kingdom
Morphology & Features:
- Helically turreted shell coiling upwards in a spiral, distinctive of heteromorph ammonites
- Fine ribbing and ornamentation visible along the shell
- Unusual uncoiled morphology that sets Hypoturrilites apart from other ammonite genera
- Excellent preservation with detailed ornamentation
Scientific Notes:
- Hypoturrilites mantelli was first described in the 19th century during systematic studies of British Cretaceous ammonites
- It is widely used as an index species for biostratigraphy within the Lower Cenomanian
- Its distinctive coiling represents evolutionary diversity among Cretaceous heteromorph ammonites
Notable Details:
- Rare British heteromorph ammonite from a classic Cretaceous locality
- Excellent preservation with strong ribbing and helically turreted morphology
- 100% genuine, natural fossil – no restoration
- Scale Reference: Each square or cube = 1cm. Please see photographs for accurate 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 Hypoturrilites mantelli ammonite is a rare and scientifically significant fossil from the Lower Cenomanian of Pitstone – an excellent addition for collectors, researchers, or natural history displays.
(Actual as seen)
Only 1 left in stock
Description
A rare heteromorph uncoiled ammonite (Hypoturrilites mantelli), from the Lower Cenomanian Stage of the Upper Cretaceous, collected at Pitstone, United Kingdom. This specimen is highly collectable, displaying the distinctive turreted and helically uncoiled morphology typical of Hypoturrilites. The fossil pictured 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: Hypoturrilites mantelli
- Order: Ammonitida
- Superfamily: Turrilitoidea
- Family: Turrilitidae
Geological Context:
- Period: Cretaceous
- Epoch/Stage: Upper Cretaceous – Lower Cenomanian (approx. 100.5 to 97 million years ago)
- Biozone: Associated with Mantelliceras mantelli Zone, a key ammonite horizon of the Lower Cenomanian
- Formation: Chalk deposits of the Cenomanian stage (White Chalk Subgroup, southern England)
- Depositional Environment: Shallow marine chalk seas with calcareous sedimentation, excellent for ammonite preservation
Locality:
- Region: Pitstone, United Kingdom
Morphology & Features:
- Helically turreted shell coiling upwards in a spiral, distinctive of heteromorph ammonites
- Fine ribbing and ornamentation visible along the shell
- Unusual uncoiled morphology that sets Hypoturrilites apart from other ammonite genera
- Excellent preservation with detailed ornamentation
Scientific Notes:
- Hypoturrilites mantelli was first described in the 19th century during systematic studies of British Cretaceous ammonites
- It is widely used as an index species for biostratigraphy within the Lower Cenomanian
- Its distinctive coiling represents evolutionary diversity among Cretaceous heteromorph ammonites
Notable Details:
- Rare British heteromorph ammonite from a classic Cretaceous locality
- Excellent preservation with strong ribbing and helically turreted morphology
- 100% genuine, natural fossil – no restoration
- Scale Reference: Each square or cube = 1cm. Please see photographs for accurate 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 Hypoturrilites mantelli ammonite is a rare and scientifically significant fossil from the Lower Cenomanian of Pitstone – an excellent addition for collectors, researchers, or natural history displays.
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