Description
Genuine Jurassic Fossil Fern Coniopteris hymenophylloides from North Yorkshire
This exceptional Fossil Plant Coniopteris hymenophylloides specimen comes from the Scalby Formation at Hayburn Wyke, North Yorkshire, UK, a classic Jurassic fossil locality renowned for its exceptionally preserved fossil flora. The fossil reveals the delicate frond structure typical of this prehistoric fern, preserved as a fine impression within the sedimentary rock that once formed part of a lush Jurassic floodplain ecosystem.
The photograph shows the exact specimen you will receive, ensuring complete authenticity and making this a carefully selected piece suitable for collectors, natural history displays, or educational collections.
Your specimen was discovered by our own team members, Alister and Alison during field exploration along the famous Yorkshire coastline. Following its recovery, the fossil was carefully cleaned, prepared and treated by Alison, revealing the intricate fern structure while maintaining the integrity of the surrounding matrix.
Full sizing can be seen in the accompanying photographs.
Every specimen is supplied with a Certificate of Authenticity lifetime guarantee card, confirming that the fossil is a genuine natural specimen.
The Prehistoric Fern Species Coniopteris hymenophylloides
Coniopteris hymenophylloides is an extinct species of fern that lived during the Middle Jurassic Period, forming part of the dense vegetation that covered much of the Earth’s land surface during the Mesozoic Era.
Its scientific classification includes:
- Order: Cyatheales
- Family: Dicksoniaceae
- Genus: Coniopteris
- Species: Coniopteris hymenophylloides
The genus Coniopteris was formally described by the German palaeobotanist Heinrich Göppert, a pioneering researcher in fossil plant studies during the 19th century. The species name hymenophylloides reflects the similarity of its fronds to modern filmy ferns (Hymenophyllaceae), which possess extremely delicate and finely divided leaves.
These ferns thrived in humid environments and were common components of Jurassic vegetation, growing alongside cycads, ginkgo-like plants, horsetails and early conifers.
Morphology and Distinctive Fern Features
Fossils of Coniopteris hymenophylloides are recognised by their delicate frond architecture and finely divided leaf structure, which is often preserved with remarkable detail in fine-grained sediments.
Key morphological characteristics include:
- Slender fronds with graceful branching
- Pinnate leaf divisions forming feather-like fronds
- Numerous narrow pinnules arranged along the rachis
- Fine vein patterns running through the leaf segments
- Thin leaf lamina indicating soft, flexible plant tissue
These ferns likely grew in dense clusters on the forest floor or along riverbanks where moisture levels remained high. Their thin leaves allowed efficient photosynthesis in the shaded understory of Jurassic forests.
When fronds were shed or buried during flooding events, they settled into fine muds and silts where low oxygen conditions allowed their delicate structure to be preserved as fossils.
Geological Formation and Jurassic Environment
This fossil originates from the Scalby Formation, part of the Middle Jurassic strata exposed along the North 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 represents a river-dominated floodplain and deltaic environment, where sediments from ancient rivers accumulated across coastal lowlands. These environments supported extensive vegetation, creating lush landscapes filled with ferns, cycads, ginkgo relatives and coniferous trees.
Seasonal flooding events periodically buried plant material in sediment, allowing leaves and fronds to be preserved as detailed fossil impressions.
The fossil flora from this formation provides important evidence for reconstructing Jurassic terrestrial ecosystems and climate conditions.
Discovery and Professional Preparation
This specimen was personally discovered by Alister and Alison, members of our experienced fossil hunting team who regularly explore classic British fossil localities.
After recovery, the fossil underwent careful preparation to enhance its natural features while preserving its scientific integrity:
- Mechanical cleaning to reveal the fossil frond
- Stabilisation of the surrounding matrix
- Surface treatment to protect the specimen
All preparation work was completed by Alison, ensuring the fossil remains both scientifically valuable and visually appealing for display.
A Remarkable Piece of Jurassic Plant History
Fossils of Coniopteris hymenophylloides provide a fascinating glimpse into the lush plant communities that thrived during the Jurassic Period over 160 million years ago. These ancient ferns formed a vital part of prehistoric ecosystems, helping shape the landscapes that supported early reptiles, insects and dinosaurs.
Specimens from Hayburn Wyke on the Yorkshire coast are especially sought after due to the site’s importance in British palaeobotany and its ability to preserve fine plant details.
Whether displayed as a natural work of art, added to a fossil collection, or used for geological education, this specimen represents a genuine and scientifically important piece of Jurassic history.
The fossil shown in the photographs is the exact specimen you will receive.
All fossils sold are 100% genuine natural specimens and include a Certificate of Authenticity lifetime guarantee card.
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