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Ireland’s Only Dinosaurs Discovered in Antrim


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The only dinosaur bones ever found on the island of Ireland have been formally confirmed for the first time by a team of experts from the University of Portsmouth and Queen’s University Belfast, led by Dr Mike Simms, a curator and palaeontologist at National Museums NI.

The two fossil bones were found by the late Roger Byrne, a schoolteacher and fossil collector, who donated them along with many other fossils to Ulster Museum.  Analysis has confirmed they are from early Jurassic rocks found in Islandmagee, on the east coast of County Antrim.

Ulster Museum has announced plans to put them on display when it reopens after the latest rounds of restrictions are lifted.

Dr Simms, National Museums NI, said: “This is a hugely significant discovery.  The great rarity of such fossils here is because most of Ireland’s rocks are the wrong age for dinosaurs, either too old or too young, making it nearly impossible to confirm dinosaurs existed on these shores.  The two dinosaur fossils that Roger Byrne found were perhaps swept out to sea, alive or dead, sinking to the Jurassic seabed where they were buried and fossilised.”

The article, published in the Proceedings of the Geologists’ Association, is part of a larger project to document Jurassic rocks in Northern Ireland and draws on many fossils in Ulster Museum’s collections.

Originally it was assumed the fossils were from the same animal, but the team were surprised to discover that they were from two completely different dinosaurs.  The study, employing the latest available technology, identified the type of dinosaur from which each came.  One is part of a femur (upper leg bone) of a four-legged plant-eater called Scelidosaurus. The other is part of the tibia (lower leg bone) of a two-legged meat-eater similar to Sarcosaurus.

The University of Portsmouth team, researcher Robert Smyth, originally from Ballymoney, and Professor David Martill, used high-resolution 3D digital models of the fossils, produced by Dr Patrick Collins of Queen’s University Belfast, in their analysis of the bone fragments.

Robert Smyth said: “Analysing the shape and internal structure of the bones, we realised that they belonged to two very different animals. One is very dense and robust, typical of an armoured plant-eater. The other is slender, with thin bone walls and characteristics found only in fast-moving two-legged predatory dinosaurs called theropods.”

“Despite being fragmentary, these fossils provide valuable insight on a very important period in dinosaur evolution, about 200 million years ago. It’s at this time that dinosaurs really start to dominate the world’s terrestrial ecosystems.”

Professor Martill said: “Scelidosaurus keeps on turning up in marine strata, and I am beginning to think that it may have been a coastal animal, perhaps even eating seaweed like marine iguanas do today.”

To find out when the fossils will go on display at the Ulster Museum follow @ulstermuseum on Twitter,  @ulstermuseumbelfast on Facebook and @ulstermuseum on Instagram.

1. The attached images show:

–  Dr Mike Simms, of National Museums NI, with the theropod tibia on the left and the Scelidosaurus femur on the right.

ireland jurasic dinosaurs

  •  Scelidosaurus femur and theropod tibia fossils.


– Illustration of the Jurassic thyreophoran Scelidosaurus harrisonii, Jack Mayer Wood, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
ireland jurasic dinosaurs

2. A copy of the paper ‘First dinosaur remains from Ireland’ by Mike Simms, Robert Smyth, Dave Martill, Patrick Collins and Roger Byrne. Proceedings of the Geologists’ Association, 2020. Simms, M.J., Smyth, R.S.H., Martill, D.M., Collins, P.C. and Byrne, R., 2020 is available from the Press and Media team on request or at: https://www.sciencedirect.com/science/article/abs/pii/S0016787820300638?fbclid=IwAR2xVr9Lrie3jh1kuSNY1s2yx_RQQQ2i4kXgH75YyEMQvry5SubhIIXxZE0

3. National Museums NI is made up of four diverse museums and serves as a custodian of the 1.4 million objects within the National Collection. These exquisite objects span all time periods, referencing Northern Ireland and the wider world.

National Museums NI operates over five sites: Ulster Museum in Belfast, Ulster Folk Museum and Ulster Transport Museum, both located in Cultra, Holywood and the Ulster American Folk Park in Omagh, as well as our Collections Stores. More information can be found at www.nmni.com

4. Ulster Museum is Northern Ireland’s treasure house of the past and the present – home to rich collections of art, history and natural sciences.  It is a vibrant place where visitors enjoy knowledge and stories drawn from local and global culture. It is a place of learning and inspiration, but also a safe and trusted space which allows diverse voices to be heard and difficult questions to be explored.

5. The University of Portsmouth is a progressive and dynamic university with an outstanding reputation for innovative teaching and globally significant research and innovation.

It was rated ‘Gold’ in the UK government’s Teaching Excellence Framework (TEF) and was ranked in the top 150 under 50 in the world according to the Times Higher Education rankings.

The University’s research and innovation culture is impacting lives today and in the future and addressing local, national and global challenges across science, technology, humanities, business and creative industries. http://www.port.ac.uk/

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