#Phylloceratina fossil

[uk-fossils]

PHYLLOCERAS Fossil Ammonite, Aptian Stage, Cretaceous Period | Genuine Moroccan Specimen + COA

PHYLLOCERAS Fossil Ammonite – Aptian Stage, Cretaceous Period, Morocco

This beautifully preserved Phylloceras fossil ammonite represents an extinct genus of cephalopods that thrived during the Aptian stage of the Early Cretaceous, around 125 to 113 million years ago. Found in the fossil-rich strata of Morocco, this specimen offers a fascinating glimpse into ancient marine ecosystems and the evolution of ammonoids.

Fossil Type & Species:

Type: Invertebrate Fossil (Ammonite Shell)

Genus: Phylloceras

Order: Ammonitida

Suborder: Phylloceratina

Family: Phylloceratidae

Geological Age: Aptian Stage, Early Cretaceous (approx. 125–113 million years ago)

Geological & Stratigraphic Details:

Formation: Likely from Cretaceous marine deposits of the Atlas Basin or adjacent units in Morocco

Depositional Environment: Open marine setting with fine sedimentation that supported the fossilisation of delicate cephalopod shells

Biozone: Aptian ammonite-bearing marine strata (specific zonation not formally assigned)

Morphology & Features: This Phylloceras specimen exhibits the key traits of the genus:

Strongly involute, smooth shell with subtle, fine growth lines

Globular to slightly compressed whorls with continuous outer curvature

No ribs or nodes, unlike many Jurassic or Cretaceous ammonites

Intricate suture lines visible on polished or naturally weathered sections

Fossilised in iron-rich limestone or marl, typical of Moroccan preservation, displaying earthy hues of beige, grey, or brown

Notable: Phylloceras is considered one of the most primitive and long-lived ammonite genera, known from the Triassic through the Cretaceous. Its smooth shell and complex sutures are diagnostic and make it both scientifically significant and aesthetically desirable.

Specimen Details:

Origin: Morocco (likely Atlas Basin or nearby marine units)

Genus: Phylloceras

Fossil Type: Ammonite Shell (Invertebrate)

Geological Stage: Aptian, Early Cretaceous

Size Reference: Scale rule square = 1cm (please refer to photos for exact sizing)

Note: You will receive the exact fossil specimen shown in the photos

Authenticity & Quality: We hand-select every fossil based on authenticity, preservation, and visual appeal. This specimen comes with a Certificate of Authenticity and is guaranteed to be 100% genuine — with no reconstructions or artificial enhancements.

Why Choose This Fossil? This Phylloceras ammonite is ideal for:

Fossil collectors seeking rare Cretaceous ammonites

Educational or teaching collections

Natural history and marine evolution enthusiasts

Unique and natural decor or gift idea

Shipping & Packaging: Carefully packed using eco-conscious materials. We offer fast, secure shipping with tracking to ensure your fossil arrives safely.

Add a timeless marine relic to your collection with this elegant Phylloceras fossil ammonite from the Cretaceous seas of Morocco.

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

[uk-fossils]

RARE Juraphyllites diopsis Fossil Ammonite – Upper Pliensbachian, Jurassic – Italy – Alice Purnell Collection – 100% Genuine with Certificate

This listing features a rare and scientifically important fossil ammonite of the species Juraphyllites diopsis from the Upper Pliensbachian Stage of the Early Jurassic, approximately 189 to 183 million years ago. This beautifully preserved specimen was found in Italy and comes from the esteemed Alice Purnell Collection, a notable source for well-documented and museum-quality fossil material.

Juraphyllites diopsis is a member of the Phylloceratina suborder, known for their elegant, involute shells with fine ribbing and suture patterns. These ammonites are often considered more primitive than later Jurassic and Cretaceous forms but display a delicate beauty in their morphology. As open-water swimmers, they played a key role in Early Jurassic marine ecosystems.

The preservation of this fossil captures its gently coiled form and delicate surface details, making it a highly desirable piece for both scientific reference and fossil collections.

Geological Context: The Upper Pliensbachian Stage (part of the Lower Jurassic system) represents a time when Europe was largely covered by shallow tropical seas. The Italian localities where Juraphyllites are found are known for producing well-preserved ammonites from limestone and marl beds that accumulated in warm, nutrient-rich marine environments. Fossils from this interval are important for biostratigraphy and evolutionary studies.

Key Details:

Species: Juraphyllites diopsis (Fossil Ammonite)

Fossil Type: Extinct marine cephalopod

Age: Upper Pliensbachian, Early Jurassic (~189–183 million years ago)

Location Found: Italy

Provenance: From the Alice Purnell Collection

Size: See scale cube in photo (1cm squares)

Condition: Excellent preservation with fine shell structure visible

Authenticity: 100% genuine specimen, includes a Certificate of Authenticity

Photo: The exact specimen shown in the listing image is the one you will receive

Scientific & Collector Value: Juraphyllites diopsis is an excellent example of early ammonite evolution and is prized for its finely detailed shell. With its Italian origin and solid provenance from the Alice Purnell Collection, this specimen makes a superb addition to any serious fossil collection or academic reference series.

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

Fast & Secure Shipping – Expertly packaged and shipped promptly to ensure safe delivery.

A true gem for collectors – own a well-preserved Juraphyllites diopsis fossil ammonite from the Jurassic seas of Italy.

[uk-fossils]

HOLCOPHYLLOCERAS Fossil Ammonite, Oxfordian Stage, Jurassic Madagascar | Authentic Specimen + COA

HOLCOPHYLLOCERAS Fossil Ammonite – Oxfordian Stage, Late Jurassic, Madagascar

This beautifully preserved Holcophylloceras fossil ammonite originates from the Oxfordian stage of the Late Jurassic Period, approximately 163.5 to 157.3 million years ago. Discovered in the fossiliferous marine limestones of Madagascar, this specimen represents a visually striking and scientifically valuable extinct marine cephalopod.

Fossil Type & Species:

Type: Invertebrate Fossil (Ammonite Shell)

Genus: Holcophylloceras

Order: Ammonitida

Suborder: Phylloceratina

Superfamily: Phylloceratoidea

Family: Phylloceratidae

Geological Age: Oxfordian Stage, Late Jurassic

Described by: Neumayr (1875)

Geological & Stratigraphic Details:

Formation: Jurassic marine limestone deposits, Madagascar

Location: Likely Mahajanga Basin or equivalent Jurassic marine platform

Stage: Oxfordian (~163.5–157.3 million years ago)

Depositional Environment: Shallow marine carbonate platform with fine sediments, ideal for fossil preservation

Biozone: Oxfordian ammonite zones (exact zone not formally assigned)

Morphology & Features: This Holcophylloceras specimen is characterised by:

Strongly involute, compressed shell with minimal ribbing

Fine longitudinal ornamentation and intricate suture lines

Highly symmetrical and smooth shell profile with a narrow umbilicus

Coloration ranging from cream to caramel and deep brown depending on mineral content

Often polished to reveal chamber structure and suture complexity for display

Notable: Holcophylloceras is a member of the Phylloceratina lineage, known for its elegant, smooth shells and highly complex suture patterns. It represents one of the more advanced Jurassic ammonites and is valued by collectors and palaeontologists for both scientific and aesthetic purposes.

Specimen Details:

Origin: Madagascar

Genus: Holcophylloceras

Fossil Type: Ammonite Shell (Invertebrate)

Geological Stage: Oxfordian, Late Jurassic

Size Reference: Scale rule square = 1cm (see photos for accurate sizing)

Note: The exact fossil shown in the photographs is the specimen you will receive

Authenticity & Quality: This fossil is 100% genuine and has been carefully sourced for quality and preservation. It comes with a Certificate of Authenticity. No restoration or artificial enhancement.

Why Choose This Fossil? This Holcophylloceras ammonite is ideal for:

Serious fossil collectors

Museum or academic display

Education and teaching collections

Decorative and scientific interest

Shipping & Packaging: Secure and eco-conscious packaging with fast, tracked shipping ensures your fossil arrives safely.

Add a refined and rare marine fossil to your collection with this Holcophylloceras ammonite from the Oxfordian seas of Jurassic Madagascar.

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.

[uk-fossils]

HYPOPHYLLOCERAS ononense Fossil Ammonite, Hauterivian Stage, Cretaceous Madagascar | Authentic Specimen + COA

HYPOPHYLLOCERAS ononense Fossil Ammonite – Hauterivian Stage, Early Cretaceous Period, Madagascar

A rare and elegant fossil ammonite from the Early Cretaceous seas of Madagascar, this specimen of Hypophylloceras ononense is a stunning example of an extinct cephalopod that lived during the Hauterivian stage, around 132 to 129 million years ago. This piece offers exceptional preservation and intricate morphology, ideal for collectors and educational display.

Fossil Type & Species:

Type: Invertebrate Fossil (Ammonite Shell)

Species: Hypophylloceras ononense

Order: Ammonitida

Suborder: Phylloceratina

Family: Phylloceratidae

Described by: Yamani, 1954

Geological & Stratigraphic Details:

Formation: Likely from marine limestone beds of the Mahajanga Basin, Madagascar

Geological Stage: Hauterivian (Early Cretaceous)

Age: Approx. 132–129 million years ago

Depositional Environment: Marine shelf environment with fine calcareous sediments, ideal for the preservation of cephalopod shells

Biozone: Not formally assigned; part of a known ammonite-bearing horizon in Madagascar’s Cretaceous sequence

Morphology & Features: This specimen of Hypophylloceras ononense showcases beautiful features:

Highly involute shell with tightly coiled whorls and smooth flanks

Globular to compressed shell geometry with minimal ornamentation

Complex suture lines with elaborate lobes and saddles typical of phylloceratids

Preserved in brown to caramel fossil tones, sometimes with calcite infilling or polishing for aesthetic display

Notable: Hypophylloceras represents a lineage of ammonites known for their elegant, smooth shells and complex internal structures. The genus is often considered one of the more primitive members of the ammonite clade during the Cretaceous. Specimens from Madagascar are especially prized for their preservation and display quality.

Specimen Details:

Origin: Madagascar (likely Mahajanga Basin)

Species: Hypophylloceras ononense

Fossil Type: Ammonite Shell (Invertebrate)

Geological Stage: Hauterivian, Early Cretaceous

Size Reference: Scale rule square = 1cm (see photo for full sizing)

Note: The fossil in the photo is the exact specimen you will receive

Authenticity & Quality: All our fossils are 100% authentic and carefully hand-selected. This specimen is accompanied by a Certificate of Authenticity and has not been artificially enhanced or reconstructed.

Why Choose This Fossil? This is a premium-quality ammonite ideal for:

Collectors of rare Cretaceous ammonites

Teaching or educational use in palaeontology

Decorative natural history displays

Unique gifts for fossil lovers or science enthusiasts

Shipping & Packaging: Your fossil will be securely packaged with environmentally conscious materials. We offer fast, reliable shipping and expert handling to ensure safe delivery.

Add a remarkable relic of ancient ocean life to your collection with this beautiful Hypophylloceras ononense ammonite fossil from Madagascar.

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.