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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Kranaosphinctes Fossil Ammonite – Oxfordian Jurassic – Madagascar – Genuine Specimen with Certificate of Authenticity
£9.00 Original price was: £9.00.£8.10Current price is: £8.10.
This listing is for a genuine Kranaosphinctes fossil ammonite, originating from the Oxfordian stage of the Late Jurassic period, found in Madagascar—a world-renowned locality for exceptionally preserved fossil ammonites.
The exact specimen pictured is the one you will receive, and a 1cm scale cube is included in the photo to provide accurate sizing reference. Please refer closely to the image for full dimensions and details.
Species & Classification:
- Genus: Kranaosphinctes
- Type: Fossil Ammonite (extinct marine cephalopod)
- Order: Ammonitida
- Superfamily: Perisphinctoidea
- Family: Perisphinctidae
- Class: Cephalopoda
- Phylum: Mollusca
Geological & Stratigraphic Context:
- Geological Period: Jurassic
- Stage: Oxfordian (~163–157 million years ago)
- Location: Madagascar (exact quarry not always recorded)
- Depositional Environment: Shallow tropical marine platform; soft carbonate or marl sediment ideal for fossil preservation
- Biozone/Zonation: Members of Kranaosphinctes are associated with mid-to-late Oxfordian ammonite biozones, often in the Perisphinctes bifurcatus or Gregoriceras transversarium zones
- Preservation: Often preserved with rich detail in mineralised shell, frequently showing strong ribbing and intact whorls
Morphological Features:
- Involute planispiral coiling with narrow umbilicus
- Strongly ribbed shell; ribs bifurcate or trifurcate mid-flank
- Ornamented with distinctive primary and secondary ribs
- Some specimens may display evidence of growth interruptions or tubercles
- This genus is typically medium to large in size, with a robust shell architecture
Notable Information:
- Kranaosphinctes is a genus closely related to Perisphinctes, sharing similar morphology but with distinctive ribbing patterns that make it identifiable
- Its fossil record is geographically broad, and in Madagascar, preservation quality is notably high due to favourable sediment conditions
- Used biostratigraphically to aid in Oxfordian zonation globally
Why Buy From Us?
- This is a 100% authentic fossil, not a replica
- Supplied with a Certificate of Authenticity
- Exact fossil pictured—hand-selected for quality and scientific value
- Perfect for collectors, educators, and display in natural history collections
This beautiful Kranaosphinctes fossil ammonite from the Oxfordian of Madagascar is a stunning example of Jurassic marine life and an outstanding addition to any fossil collection or educational exhibit.
(Actual as seen)
Only 1 left in stock
Description
This listing is for a genuine Kranaosphinctes fossil ammonite, originating from the Oxfordian stage of the Late Jurassic period, found in Madagascar—a world-renowned locality for exceptionally preserved fossil ammonites.
The exact specimen pictured is the one you will receive, and a 1cm scale cube is included in the photo to provide accurate sizing reference. Please refer closely to the image for full dimensions and details.
Species & Classification:
- Genus: Kranaosphinctes
- Type: Fossil Ammonite (extinct marine cephalopod)
- Order: Ammonitida
- Superfamily: Perisphinctoidea
- Family: Perisphinctidae
- Class: Cephalopoda
- Phylum: Mollusca
Geological & Stratigraphic Context:
- Geological Period: Jurassic
- Stage: Oxfordian (~163–157 million years ago)
- Location: Madagascar (exact quarry not always recorded)
- Depositional Environment: Shallow tropical marine platform; soft carbonate or marl sediment ideal for fossil preservation
- Biozone/Zonation: Members of Kranaosphinctes are associated with mid-to-late Oxfordian ammonite biozones, often in the Perisphinctes bifurcatus or Gregoriceras transversarium zones
- Preservation: Often preserved with rich detail in mineralised shell, frequently showing strong ribbing and intact whorls
Morphological Features:
- Involute planispiral coiling with narrow umbilicus
- Strongly ribbed shell; ribs bifurcate or trifurcate mid-flank
- Ornamented with distinctive primary and secondary ribs
- Some specimens may display evidence of growth interruptions or tubercles
- This genus is typically medium to large in size, with a robust shell architecture
Notable Information:
- Kranaosphinctes is a genus closely related to Perisphinctes, sharing similar morphology but with distinctive ribbing patterns that make it identifiable
- Its fossil record is geographically broad, and in Madagascar, preservation quality is notably high due to favourable sediment conditions
- Used biostratigraphically to aid in Oxfordian zonation globally
Why Buy From Us?
- This is a 100% authentic fossil, not a replica
- Supplied with a Certificate of Authenticity
- Exact fossil pictured—hand-selected for quality and scientific value
- Perfect for collectors, educators, and display in natural history collections
This beautiful Kranaosphinctes fossil ammonite from the Oxfordian of Madagascar is a stunning example of Jurassic marine life and an outstanding addition to any fossil collection or educational exhibit.
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