Description
Genuine Jurassic Fern Fossil Coniopteris hymenophylloides from North Yorkshire
This striking Fossil Plant Coniopteris hymenophylloides specimen originates from the Scalby Formation at Hayburn Wyke on the North Yorkshire coast, UK, an internationally recognised Jurassic fossil locality known for preserving ancient plant life in remarkable detail. The fossil displays the delicate frond structure characteristic of this prehistoric fern, preserved within fine sedimentary rock that once formed part of a Jurassic floodplain environment.
The photograph shows the exact fossil specimen you will receive, making this a carefully selected and authentic collector’s piece ideal for fossil enthusiasts, natural history collections, or educational study.
Your specimen was discovered by our own fossil hunting team members, Alister and Alison, during field exploration along the Yorkshire coastline. Following discovery, the fossil was carefully cleaned, prepared and treated by Alison to reveal the fine botanical details while preserving the integrity of the surrounding matrix.
Full sizing can be seen in the accompanying photographs.
Every fossil is supplied with a Certificate of Authenticity lifetime guarantee card, confirming that the specimen is a genuine natural fossil.
The Prehistoric Fern Coniopteris hymenophylloides
Coniopteris hymenophylloides is a well-known fossil fern species from the Mesozoic Era, particularly abundant in Jurassic deposits across Europe. These ferns formed an important part of Jurassic terrestrial ecosystems, growing in moist lowland environments alongside cycads, ginkgos and early conifers.
Its scientific classification includes:
- Order: Cyatheales
- Family: Dicksoniaceae
- Genus: Coniopteris
- Species: Coniopteris hymenophylloides
The genus Coniopteris was first formally described by the German palaeobotanist Heinrich Göppert, who studied numerous fossil plants from Mesozoic strata. The species name hymenophylloides refers to its resemblance to modern filmy ferns of the family Hymenophyllaceae, known for their thin, delicate fronds.
During the Jurassic Period, these ferns would have formed dense vegetation in humid environments, often growing along riverbanks, lake margins and forest floors.
Morphology and Distinctive Features
Fossils of Coniopteris hymenophylloides are recognised by their elegant and finely divided fronds, which are often preserved as detailed impressions in sedimentary rock.
Characteristic features include:
- Slender fronds with delicate branching structure
- Multiple pinnate divisions forming feather-like leaves
- Narrow pinnules arranged symmetrically along the rachis
- Fine venation patterns visible in well-preserved specimens
- Thin lamina indicating soft, flexible leaf tissue
These finely structured fronds would have captured sunlight efficiently within the shaded understory of Jurassic forests.
When leaves were shed or buried during flooding events, they settled into fine sediment where low oxygen conditions allowed their structure to be preserved as fossils.
Geological Formation and Jurassic Age
This specimen originates from the Scalby Formation, part of the Middle Jurassic strata exposed along the Yorkshire coast.
Geological details include:
- Formation: Scalby Formation
- Geological Stage: Bathonian
- Period: Middle Jurassic
- Age: Approximately 168–166 million years old
- Locality: Hayburn Wyke, North Yorkshire, United Kingdom
The Scalby Formation consists primarily of sandstones, siltstones and mudstones deposited within river channels, floodplains and deltaic systems. These environments supported extensive vegetation and periodically buried plant material during floods or sediment influx.
As a result, this formation has produced a rich fossil flora including ferns, ginkgo-like plants, cycads and conifer remains, providing an exceptional record of Jurassic terrestrial ecosystems.
Discovery and Preparation by Our Fossil Team
This fossil was personally discovered by Alister and Alison, members of our experienced fossil hunting team who regularly explore classic British fossil localities.
After careful recovery from the surrounding rock, the specimen underwent professional preparation:
- Controlled mechanical cleaning
- Stabilisation of the surrounding matrix
- Careful exposure of the plant fossil structure
All preparation work was carried out by Alison, ensuring the fossil remains both scientifically valuable and visually appealing for display.
A Window into Jurassic Forest Ecosystems
Fossil plant specimens like Coniopteris hymenophylloides offer a fascinating glimpse into the lush vegetation that once covered Jurassic landscapes. Ferns played an essential role in these ecosystems, thriving in humid climates and forming dense plant communities beneath taller trees.
Specimens from the Yorkshire coast are particularly prized because they come from one of the most historically significant fossil plant localities in the United Kingdom.
Whether displayed as a natural history specimen, added to a fossil collection, or used for geological education, this fossil represents a genuine piece of prehistoric plant life from over 160 million years ago.
The fossil shown in the photographs is the exact specimen you will receive.
All fossils are 100% genuine natural specimens and are supplied with a Certificate of Authenticity lifetime guarantee card.
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