RARE 9″ Hyperlioceras rudiscites Ammonite Fossil – Inferior Oolite, Middle Bajocian, Jurassic – UK – Alice Purnell Collection

Description

Offered for sale is a RARE 9″ ammonite fossil of Hyperlioceras rudiscites from the Inferior Oolite Formation, dating to the Middle Bajocian Stage of the Jurassic Period, discovered in Burton Bradstock, Dorset, United Kingdom. This stunning fossil comes from the respected Alice Purnell Collection and is accompanied by a Certificate of Authenticity confirming its genuine nature.

The item shown in the photographs is the exact specimen you will receive, with a scale cube (1 cm per square) included for full sizing reference.

Geological & Palaeontological Context:

• Species: Hyperlioceras rudiscites
• Genus: Hyperlioceras
• Geological Stage: Middle Bajocian (~170.3 to 168.3 million years ago)
• Stratigraphy: Inferior Oolite Group
• Location: Burton Bradstock, Dorset, UK
• Depositional Environment: Shallow epicontinental sea with oolitic limestone deposition in a warm, high-energy marine setting. The Inferior Oolite is known for exceptional preservation of ammonite fauna.

Taxonomic Classification:

• Family: Graphoceratidae
• Superfamily: Hildoceratoidea
• Order: Ammonitida
• Suborder: Ammonitina
• Formally Identified By: Species rudiscites attributed to early descriptions of the genus Hyperlioceras, recognised within British Bajocian ammonite zonation schemes.

Morphology Features:

Hyperlioceras rudiscites is distinguished by:

• A relatively involute shell with a narrow umbilicus
• Strong, dense ribbing along the flanks
• Slightly compressed whorl section
• A keel present along the venter
• A highly sculptural appearance typical of ammonites in the Inferior Oolite

This specimen’s preservation and size make it an ideal piece for both display and scientific reference.

Notable Attributes:

• Excellent representative of Bajocian ammonite faunas
• From the world-renowned fossiliferous Jurassic marine sediments of Dorset
• Highly displayable size at 9 inches
• Sourced from the Alice Purnell Collection, known for quality and documentation
• Supplied with Certificate of Authenticity

Additional Notes:

• All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.
• Scale Rule Squares / Cube = 1cm – full sizing is visible in the photographs.
• This is the exact specimen you will receive.
• An outstanding addition for collectors, educational institutions, and fossil enthusiasts.

This is a beautifully preserved ammonite from a key Jurassic biozone, ideal for those seeking rare and scientifically significant fossils from classic British localities.