New Crocodile Species Herugavialis cairensis Identified From 45-Million-Year-Old Fossils
Fossils found in Egypt's Mokattam Formation share a missing snout feature with the Great Sphinx.
AI-assisted coverage comparison, editor-supervised · How this was made

One of the closest living relatives of the newly discovered extinct species is the the Gharial (Gavialis_gangeticus). Photo By Charles J. Sharp CC BY-SA 4.0,
Photograph: Conservation news (embedded from source)
What this story says
- A new species of extinct crocodile, Herugavialis cairensis, has been identified from 45-million-year-old fossils.
- The fossils were discovered in Egypt's Mokattam Formation, the same limestone used to build the Great Sphinx.
- A nearly complete skull fossil of the new species is missing the tip of its snout, similar to the Great Sphinx.
- The discovery adds to the understanding of gharials, a group of crocodilians with a complex evolutionary history.
Who covered it
Percentages are shares of the 25 outlets carrying a published leaning rating. 16 of the 41 outlets we know ran this story carry no rating and are not counted in them. Coverage measured .
Trust
42/100
Craft
61/100
Hype
41/100
41 sources · methodology
Paleontologists have identified a new species of extinct crocodile, Herugavialis cairensis, from fossils dating back 45 million years. The remains were discovered in the Mokattam Formation in northern Egypt, a limestone deposit that also provided material for the Great Sphinx and the pyramids at Giza. The new species is part of the gharial lineage, a group of crocodilians known for their long, slender snouts and complex evolutionary history.
One of the key fossils, a nearly complete skull, shares a notable characteristic with the Great Sphinx: the tip of its snout is missing. This feature, along with the shared geological origin, inspired the naming of the new genus. The study, published in the journal Royal Society Open Science, analysed several fossil specimens, including the skull unearthed in the 1920s, using modern techniques like CT scanning.
Disagreement on Age of Fossils
Reports differ on the age of the fossils. The journal Royal Society Open Science and full reports from KIFI and Conservation news state the fossils are 45 million years old. However, digests from GB News, Clarin, La Razón, and Svenska Dagbladet suggest the fossils are 54 million years old. Life.ru and ТСН.ua also suggest an age of 54 million years.
What the coverage left out
None of the left-rated, centre-rated, or right-rated reports printed below mention the specific names of the other fossil specimens analysed in the study beyond the skull, or the exact number of specimens used. The full report from KIFI mentions "five other specimens" were analysed, but this detail is not present in the digests from other outlets.
Still developing. We have re-checked which outlets are covering this 5 times, most recently on 7 Oct 2026, 15:15, and will add the sides that appear.
How each side covered it
Our own reading of the reporting listed below, written from the outlets’ articles rather than quoted from them. The reasoning is set out on our methodology page.
Left
1 rated outlet
- The left-rated report from Conservation news led with the discovery of the new crocodile species and its connection to the Great Sphinx. It highlighted that the fossils were found in the same limestone formation used to build the monument. The report also noted that the fossil skull is missing the tip of its nose, mirroring the Great Sphinx. It extensively discussed the conservation status of modern gharials, mentioning that the false gharial is endangered and the gharial is critically endangered. The report also included details on conservation successes for other crocodilian species, such as the American alligator and the Indian gharial, and discussed current threats like habitat loss and hunting for bushmeat.
Centre
20 rated outlets
- Centre-rated reports from KIFI, The Debrief, ZME Science, Euronews, studyfinds.com, Internewscast, Discover Magazine, KESQ, KEYT, KMIZ, KRDO, and KVIA focused on the identification of the new crocodile species, Herugavialis cairensis, and its discovery in the rock used for the Great Sphinx. Many highlighted the shared missing snout feature between the fossil skull and the Sphinx. The full report from KIFI provided detailed information on the scientific analysis, including CT scans, and quoted paleontologists Paul Burke and Philip Mannion on the species' characteristics and evolutionary significance. Several digests noted that the fossil had been misidentified for nearly a century.
Right
4 rated outlets
- Right-rated reports from GB News, Clarin, La Razón, and Svenska Dagbladet led with the discovery of the new crocodile species, Herugavialis cairensis, and its link to the rocks used to build the Great Sphinx. GB News stated that British scientists revealed the Sphinx was 'built with crocodile fossils'. Clarin and La Razón highlighted the curious similarity between the missing snout of the fossil and the Great Sphinx. Svenska Dagbladet noted that new research shows the crocodile belongs to a different part of the family tree than previously believed.
Questions about this coverage
- How did the left and right cover New Crocodile Species Herugavialis cairensis Identified From…?
- Of the 25 outlets on this story carrying a published leaning rating, 4% are rated left, 79% are rated centre, 17% are rated right. Those percentages are shares of the rated outlets, not of every outlet that ran it, which was 41. The sections above set out what each side emphasised, in its own terms.
- Is New Crocodile Species Herugavialis cairensis Identified From… left or right?
- The story itself is neither. What can be counted is who has covered it, and 79% of the 25 rated outlets on it are rated centre — so far this is a story carried mostly by the centre. Coverage is still arriving and that can change, which is why the figure is dated rather than fixed.
- Is the coverage of New Crocodile Species Herugavialis cairensis Identified From… biased?
- New Crocodile Species Herugavialis cairensis Identified From 45-Million-Year-Old Fossils is one event reported by 41 outlets, and this page does not rate the story as biased or unbiased. What it publishes is the spread: which outlets ran it, where named rating organisations place each of them on the spectrum, and what each side chose to lead with. A leaning rating describes an outlet's record over time, not this article, and the two should not be run together.
- Which outlets covered New Crocodile Species Herugavialis cairensis Identified From…?
- 41 that we know of, every one of them listed further up this page with a link to its own report and to what we hold on the publisher. Nothing here is a summary of somebody else's summary: the outlets are named so the original reporting can be read.
- What is the new species of crocodile called?
- The new species of extinct crocodile has been named Herugavialis cairensis. This name was inspired by the Egyptian god Heru, or Horus, and the striking similarity between a key fossil skull and the Great Sphinx, both of which are missing the tip of their snouts.
- Where were the fossils of Herugavialis cairensis found?
- The fossils were discovered in the Mokattam Formation in northern Egypt. This geological layer is significant because it is the same limestone quarried by ancient Egyptians to construct the Great Sphinx and the pyramids at Giza.
- What is the evolutionary significance of this discovery?
- The identification of Herugavialis cairensis adds to the understanding of gharials, a group of crocodilians with a complex evolutionary history. It helps scientists reconstruct the diversity of prehistoric marine life in the Mediterranean region and sheds light on the global distribution of this lineage.
- Why is the missing snout tip of the fossil important?
- The nearly complete skull fossil of Herugavialis cairensis is missing the tip of its snout, a feature that mirrors the famously damaged nose of the Great Sphinx. This coincidence is not only a curious link but also influenced the naming of the new crocodile species.
Read it at the source
41 outlets, grouped by the leaning a published rating gives them. Every headline links to the original; an underlined outlet name opens our profile of that publisher.
Left
1Centre
20- An Ancient Crocodile Was Discovered in Egyptian Rocks Linked to the Great Sphinx—and It Has a Curious Connection to Giza's Ancient Guardian (opens The Debrief in a new tab)
The Debrief — is The Debrief biased? Our profile of this outlet
- New Crocodile Species Discovered in the Limestone Used to Build Egypt's Great Sphinx Is 45 Million Years Old (opens ZME Science in a new tab)
ZME Science — is ZME Science biased? Our profile of this outlet
- Scientists identify ancient Sphinx-like Egyptian crocodile (opens Euronews in a new tab)
- Ancient Crocodile From Sphinx's Rock Formation Misidentified For A Century (opens studyfinds.com in a new tab)
studyfinds.com — is studyfinds.com biased? Our profile of this outlet
- Great Sphinx Carved From Rock Rich in Ancient Crocodile Fossils (opens Internewscast in a new tab)
Internewscast — is Internewscast biased? Our profile of this outlet
- Scientists name ancient crocodile species found in rock that built the Great Sphinx (opens CTV News in a new tab)
- This Newly Identified Species of Extinct Crocodile is Missing the Tip of Its Nose, Just Like the Great Sphinx (opens Discover Magazine in a new tab)
Discover Magazine — is Discover Magazine biased? Our profile of this outlet
- Scientists name ancient crocodile species found in rock that built the Great Sphinx (opens kioncentralcoast.com in a new tab)
kioncentralcoast.com — is kioncentralcoast.com biased? Our profile of this outlet
Show 12 more
- Scientists name ancient crocodile species found in rock that built the Great Sphinx (opens kimt.com in a new tab)
- Scientists name ancient crocodile species found in rock that built the Great Sphinx (opens KVIA in a new tab)
- Scientists name ancient crocodile species found in rock that built the Great Sphinx (opens KRDO in a new tab)
- Scientists name ancient crocodile species found in rock that built the Great Sphinx (opens KMIZ in a new tab)
- Scientists name ancient crocodile species found in rock that built the Great Sphinx (opens KIFI in a new tab)
- Scientists name ancient crocodile species found in rock that built the Great Sphinx (opens KEYT in a new tab)
- Scientists name ancient crocodile species found in rock that built the Great Sphinx (opens KESQ in a new tab)
- Discover a New Species of Crocodile Among the Rocks of the Great Sphinx of Egypt (opens Hola News in a new tab)
- The Sphinx was built from rocks filled with fossils of crocodiles (opens dailymail.com in a new tab)
dailymail.com — is dailymail.com biased? Our profile of this outlet
- New crocodile species found in rocks of Egypt's Great Sphinx (opens Popular Science in a new tab)
Popular Science — is Popular Science biased? Our profile of this outlet
- From the Great Sphinx’s Raw Materials, a New Crocodile Species Surfaces (opens Nautilus in a new tab)
- An extinct crocodilian was found among rocks that built the Great Sphinx (opens Science News in a new tab)
Science News — is Science News biased? Our profile of this outlet
Right
4- Egypt's Great Sphinx of Giza 'built with crocodile fossils', British scientists reveal (opens GB News in a new tab)
- Discover a New Species of Crocodile Among the Rocks of the Great Sphinx of Egypt (opens Clarin in a new tab)
- The Sphinx Could Hide a Secret of 54 Million Years: They Discover Fossils of an Ancient Crocodile in Its Rocks (opens La Razón in a new tab)
- New Crocodile Species Discovered – in the Sphinx Stone (opens Svenska Dagbladet in a new tab)
Svenska Dagbladet — is Svenska Dagbladet biased? Our profile of this outlet
Not rated
16- Crocodile From the Sea of the Sphinx Is a New Species: “That Is Why Accessible Museum Collections Are so Important” (opens scientias.nl in a new tab)
scientias.nl — is scientias.nl biased? Our profile of this outlet
- Scientists Found Fossils of an Ancient Crocodile in the Breeds of Big Sphinx. (opens Life.ru in a new tab)
- The Mystery of the Sphinx Surprised Scientists: Why Are 54 Million Year Old Crocodiles Here (opens ТСН.ua in a new tab)
- Great Sphinx of Giza Was Built With Rocks Containing Crocodile Fossils (opens NewsFinale in a new tab)
NewsFinale — is NewsFinale biased? Our profile of this outlet
- Even the Pharaohs Wouldn't Have Believed It: a New Fossilized Crocodile Species Was Found in the Great Sphinx (opens Blikk.hu in a new tab)
- Extinct Crocodile Species Discovered in the Rock of the Great Sphinx (opens scinexx.de in a new tab)
scinexx.de — is scinexx.de biased? Our profile of this outlet
- They Discover the Fossil of an Unknown Species of Crocodile 45 Million Years Ago in the Same Rock of the Sphinx of Giza, and Also Lacks the Nose (opens La Brújula Verde in a new tab)
La Brújula Verde — is La Brújula Verde biased? Our profile of this outlet
- Surprising Discovery of the Sphinx in Giza (opens Gândul in a new tab)
Show 8 more
- New Crocodile Species Found In Same Rocks As Great Sphinx (opens abovethenormnews.com in a new tab)
abovethenormnews.com — is abovethenormnews.com biased? Our profile of this outlet
- An Unknown Species of Missing Crocodile, Discovered in the Rock of the Great Sfinx of Egypt (opens historia.ro in a new tab)
historia.ro — is historia.ro biased? Our profile of this outlet
- Fossils Found in the Sphinx Rocks in Egypt Have Been Identified as Belonging to a New Crocodile Approximately 45 Million Years Old. (opens Haberler in a new tab)
- What the Rock Was Hiding From Which the Great Sfinx Was Built. Researchers Have Identified an Unknown Species (opens antena3.ro in a new tab)
antena3.ro — is antena3.ro biased? Our profile of this outlet
- A New Species of Crocodile Was Discovered in the Great Sphinx of Egypt (opens EL NACIONAL in a new tab)
EL NACIONAL — is EL NACIONAL biased? Our profile of this outlet
- An Extinct Crocodile Was Discovered Among the Rocks that Built the Great Sphinx (opens Issuesfr in a new tab)
- Extinct crocodile with a missing snout tip emerges from the stones of the (opens Scienmag in a new tab)
- Discover a New Species of Crocodile Among the Rocks of the Great Sphinx of Egypt (opens robertocavada.com in a new tab)
robertocavada.com — is robertocavada.com biased? Our profile of this outlet
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