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Parkinsonia acris Fossil Ammonite – Bajocian Jurassic – Calvados France – Genuine Fossil with Certificate
£8.40
This listing is for a genuine Parkinsonia acris fossil ammonite from the Bajocian Stage of the Middle Jurassic, discovered in Calvados, Normandy, France. This well-preserved ammonite showcases classic morphological features of the genus and is a representative of one of the most diagnostic ammonite taxa of its time. The photograph shows the exact specimen you will receive, with a 1cm scale cube for accurate sizing. Please refer to the photo for full dimensions.
Fossil Type & Classification:
- Species: Parkinsonia acris
- Type: Fossil Ammonite (extinct marine cephalopod)
- Order: Ammonitida
- Superfamily: Stephanoceratoidea
- Family: Parkinsoniidae
- Formally Described By: S.S. Buckman, 1921
- Phylum: Mollusca
- Class: Cephalopoda
Geological & Stratigraphic Information:
- Period: Jurassic
- Epoch: Middle Jurassic
- Stage: Bajocian
- Formation/Locality: Found in Bajocian marine strata near Calvados, Normandy, France
- Depositional Environment: Shallow epicontinental marine shelf with soft marine sediments, ideal for ammonite preservation
- Biozone Association: Parkinsonia Zone – used extensively in biostratigraphy of the Bajocian
- Significance: Parkinsonia acris is an important zonal fossil, used to date and correlate Jurassic rocks across Europe
Morphology & Features:
- Strongly ribbed shell with bifurcating ribs that arise at the umbilical shoulder
- Planispiral coiling and an open umbilicus, typical of the genus Parkinsonia
- Ornamentation includes radial ribs and tubercles near the ventrolateral shoulder
- Often preserved in limestone or marl with fine suture patterns visible under light
Scientific & Collector Notes:
- Parkinsonia acris is a key marker species for the late Bajocian and is a notable index fossil
- Calvados is a classic locality for Jurassic ammonites and yields excellent quality fossils
- These ammonites were fast-swimming predators or scavengers in warm, shallow seas
- An excellent specimen for any fossil collector, palaeontology student, or geology enthusiast
Why Buy From Us?
- 100% authentic fossil, ethically sourced
- Comes with a Certificate of Authenticity
- You will receive the exact specimen shown
- Perfect for display, study, or educational collections
This striking Parkinsonia acris fossil ammonite from the Bajocian of Calvados, France is both a scientifically important specimen and a stunning natural relic from the Jurassic seas of Europe.
(Actual as seen)
Out of stock
Description
This listing is for a genuine Parkinsonia acris fossil ammonite from the Bajocian Stage of the Middle Jurassic, discovered in Calvados, Normandy, France. This well-preserved ammonite showcases classic morphological features of the genus and is a representative of one of the most diagnostic ammonite taxa of its time. The photograph shows the exact specimen you will receive, with a 1cm scale cube for accurate sizing. Please refer to the photo for full dimensions.
Fossil Type & Classification:
- Species: Parkinsonia acris
- Type: Fossil Ammonite (extinct marine cephalopod)
- Order: Ammonitida
- Superfamily: Stephanoceratoidea
- Family: Parkinsoniidae
- Formally Described By: S.S. Buckman, 1921
- Phylum: Mollusca
- Class: Cephalopoda
Geological & Stratigraphic Information:
- Period: Jurassic
- Epoch: Middle Jurassic
- Stage: Bajocian
- Formation/Locality: Found in Bajocian marine strata near Calvados, Normandy, France
- Depositional Environment: Shallow epicontinental marine shelf with soft marine sediments, ideal for ammonite preservation
- Biozone Association: Parkinsonia Zone – used extensively in biostratigraphy of the Bajocian
- Significance: Parkinsonia acris is an important zonal fossil, used to date and correlate Jurassic rocks across Europe
Morphology & Features:
- Strongly ribbed shell with bifurcating ribs that arise at the umbilical shoulder
- Planispiral coiling and an open umbilicus, typical of the genus Parkinsonia
- Ornamentation includes radial ribs and tubercles near the ventrolateral shoulder
- Often preserved in limestone or marl with fine suture patterns visible under light
Scientific & Collector Notes:
- Parkinsonia acris is a key marker species for the late Bajocian and is a notable index fossil
- Calvados is a classic locality for Jurassic ammonites and yields excellent quality fossils
- These ammonites were fast-swimming predators or scavengers in warm, shallow seas
- An excellent specimen for any fossil collector, palaeontology student, or geology enthusiast
Why Buy From Us?
- 100% authentic fossil, ethically sourced
- Comes with a Certificate of Authenticity
- You will receive the exact specimen shown
- Perfect for display, study, or educational collections
This striking Parkinsonia acris fossil ammonite from the Bajocian of Calvados, France is both a scientifically important specimen and a stunning natural relic from the Jurassic seas of Europe.
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