Discovery of the 'Frosty' Rhino: A New Species Found in the Canadian Arctic
What is this article about?
Researchers have identified a new species of extinct rhinoceros, named Epiatheracerium itjilik, from fossils found in Canada's High Arctic. This hornless, lightly built rhino lived 23 million years ago in a region that was once a temperate forest rather than a frozen landscape.
Key takeaways
- •The fossil is the northernmost rhinoceros ever documented and was found at Haughton Crater on Devon Island.
- •The species was named 'itjilik'—meaning 'frosty' in Inuktitut—in collaboration with an Inuit Elder.
- •The discovery suggests that a land bridge between North America and Europe was used by mammals much later than scientists previously thought.
Why it matters
This find changes our understanding of how ancient animals migrated across the globe and shows that the Arctic was once a lush environment capable of supporting large mammals.
Overview
A 'frosty' fossil found in a Canadian crater reveals a hidden chapter of rhinoceros evolution and ancient Arctic migrations.
Paleontologists from the Canadian Museum of Nature have described a new extinct rhinoceros species, Epiatheracerium itjilik, based on a remarkably well-preserved 75% complete skeleton found in Nunavut, Canada. Living approximately 23 million years ago during the Early Miocene, this hornless rhino inhabited a temperate forest environment in what is now the High Arctic. The study suggests these animals migrated from Europe to North America via a North Atlantic land bridge that remained active much longer than previously believed, reshaping the known evolutionary timeline of rhinocerotids.
Key Details
The Fossil Find
- •Discovered in ancient lakebed sediments at the 23-km wide Haughton Crater.
- •About 75% of the skeleton was recovered, which is exceptionally rare for fossils.
- •The bones were three-dimensionally preserved and only partially mineralized.
Physical Characteristics
- •Comparable in size to a modern Indian rhinoceros but without a horn.
- •Described as 'lightly built' compared to larger, bulkier rhino ancestors.
- •Tooth wear suggests the individual died in early to middle adulthood.
Scientific Breakthroughs
- •Evidence of a land bridge through Greenland active until the Miocene period.
- •Successful recovery of partial proteins from tooth enamel, extending the range for ancient DNA/protein study by millions of years.
- •Revised the rhino family tree using data from 57 different species.
The Five Why's (and How)
Who:
Dr. Danielle Fraser and a team from the Canadian Museum of Nature, with fossils originally found by pioneer Dr. Mary Dawson.
What:
The identification of a new extinct rhino species, Epiatheracerium itjilik.
When:
The fossil lived 23 million years ago; key remains were found in 1986 and the late 2000s, with final identification published recently.
Where:
Haughton Crater on Devon Island in Nunavut, Canada (the High Arctic).
Why:
To understand how rhinos evolved and moved between continents during the Miocene epoch.
How:
By analyzing skeletal remains and tooth proteins and comparing them to datasets of other known rhino species.
Different Perspectives
Research Scientists
They believe this discovery proves the Arctic was a critical gateway for animal migration between Europe and North America much later than once thought.
Inuit Community
Inuit Elder Jarloo Kiguktak collaborated on the naming process, ensuring the species name 'itjilik' (frosty) honors the local Inuktitut language and the find's location.
What to Watch
Scientists will likely use the new protein-sequencing techniques from this rhino's teeth to study other ancient fossils, potentially identifying more unknown species from the Arctic's past.
Why Students Should Care
This story connects to Earth Science (climate change over millions of years), Biology (evolution and migration), and Indigenous Studies (collaboration between scientists and Inuit Elders).
Classroom Discussion Questions
Original Source: Science Daily
This summary was generated from the original article for educational purposes.
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