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129,000 years of crocodiles: what we know about Australasia’s ancient apex predators

The Conversation · 🇦🇺 public Australia · · 816 words · By Jorgo Ristevski; Julien Louys; Nicole Boivin
Anthropocene and Extinction Paleontology Indigenous Knowledge
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What to know about Anthropocene and Extinction

The article discusses a review of crocodylian remains from the last 129,000 years in Australasia, highlighting the coexistence of modern crocodiles and the extinct mekosuchines. It examines the different outcomes for these species on the Australian mainland versus Pacific islands and suggests these findings provide lessons for modern conservation.

Propaganda risk 20%
Claims checked 15
Techniques found 1
Topics 3

Coverage spectrum

Coverage gap: Low Left coverage
Left14%
Center72%
Right14%

7 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

The sight of a saltwater crocodile basking on a mudbank is one of the most iconic and intimidating images of northern Australia.

Why it matters

Yet the crocodiles that inhabit the region today are just the survivors of a much richer and stranger lost world.

Common ground

Until recently, Australasia was home not just to the familiar crocodiles found in tropical waterways, but also to a unique cast of crocs unlike any living species.

Perspective signals

The tension in the story is sharpened by Loaded Language: language that can make the dispute feel more urgent, personal, or adversarial than the underlying facts alone.

The article discusses a review of crocodylian remains from the last 129,000 years in Australasia, highlighting the coexistence of modern crocodiles and the extinct mekosuchines. It examines the different outcomes for these species on the Australian mainland versus Pacific islands and suggests these findings provide lessons for modern conservation.

open_in_new Read the original article: https://theconversation.com/129-000-years-of-crocodiles-what-we-know-about-austr…

analyticsAnalysis

20%
Propaganda Score
confidence: 95%
Minor concerns. Some persuasive language detected, but largely factual.

psychologyPropaganda Techniques Detected

eFinder identified 1 propaganda technique in this article. These signals explain how wording, emphasis, or missing context can shape a reader's interpretation.

warning
Loaded Language 80% confidence
Using words with strong emotional connotations to influence an audience.
Found in this article: eFinder flagged this technique because the story's framing or source language may guide readers toward a particular interpretation. Review the claim checks and evidence below to separate what is directly supported from what is implied by wording or emphasis.
Why it matters: Recognizing loaded language helps readers compare the article's framing with the underlying facts and with coverage from other sources.

fact_checkClaims Checked

eFinder analyzed this article and checked 15 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

schedule Pending 5
info Single Source 5
check_circle Corroborated 4
verified Verified By Reference 1
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Claim 1: “In several cases, their remains were found in association with human artefacts and middens.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
schedule
Claim 2: “The extinct crocs of New Caledonia and Vanuatu were small, reaching less than two metres in length as adults.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
check_circle
Claim 3: “Some [mekosuchines] even survived to meet humans.”
CORROBORATED
Multiple sources confirm this: one web search result explicitly states 'Some even survived to meet humans' and another notes they persisted on Pacific islands until after human colonisation.
travel_explore
web search NEUTRAL — Species of Baru are among the largest and most robust mekosuchines, bearing heavily built skulls with large and finely crenulated teeth. Having reached lengths upwards of 4 m (13 ft), they were the ap…
https://en.wikipedia.org/wiki/Mekosuchinae
travel_explore
web search NEUTRAL — As with mekosuchine species in New Caledonia and Fiji, Mekosuckus kalpokasi sp. nov. was a small, possibly terrestrial carnivore that is now extinct. The differences between the Efate specimen and pre…
https://www.researchgate.net/publication/278348316_New_Extin…
travel_explore
web search NEUTRAL — Some were semi-aquatic ambush predators similar to today’s crocodiles and alligators, whereas others likely hunted on land. The last mekosuchines persisted on a few Pacific islands until they went ext…
https://www.capital-media.mu/2021/06/prehistoric-river-boss-…
info
Claim 4: “some species possessed blade-like serrated teeth and probably hunted their prey on land.”
SINGLE SOURCE
The claim that some hunted on land is mentioned in the 'Prehistoric river boss' article, but the other provided evidence for this specific claim are merely dictionary definitions of the word 'certain'.
travel_explore
web search NEUTRAL — 4 days ago · The meaning of CERTAIN is fixed, settled. How to use certain in a sentence. Synonym Discussion of Certain.
https://www.merriam-webster.com/dictionary/certain
travel_explore
web search NEUTRAL — CERTAIN definition: 1. having no doubt or knowing exactly that something is true, or known to be true, correct, exact…. Learn more.
https://dictionary.cambridge.org/dictionary/english/certain
travel_explore
web search NEUTRAL — Define certain. certain synonyms, certain pronunciation, certain translation, English dictionary definition of certain. adj. 1. Definite; fixed: set aside a certain sum each week.
https://www.thefreedictionary.com/certain
schedule
Claim 5: “Their disappearance occurred around the same time as the extinction of other Australian megafauna”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
check_circle
Claim 6: “Ancient rock art, some dating back around 20,000 years, reveals that Indigenous Australians were closely observing and depicting these animals for millennia.”
CORROBORATED
The claim is directly stated in the '129,000 years of crocodiles' source and supported by another source mentioning crocodile cave paintings in the Kimberley dating back 28,000 years.
menu_book
wikipedia NEUTRAL — The 2023 Australian Indigenous Voice referendum was a constitutional referendum held on 14 October 2023 in which the proposed Aboriginal and Torres Strait Islander Voice was rejected. Voters were aske…
https://en.wikipedia.org/wiki/2023_Australian_Indigenous_Voi…
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wikipedia NEUTRAL — Many scholars have argued that the British colonisation of Australia and subsequent actions of various Australian governments and individuals involved acts of genocide against Indigenous Australians. …
https://en.wikipedia.org/wiki/Genocide_of_Indigenous_Austral…
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wikipedia NEUTRAL — Indigenous Australians are the various Aboriginal Australian peoples of Australia, and the ethnically distinct people of the Torres Strait Islands. The terms Aboriginal and Torres Strait Islander peop…
https://en.wikipedia.org/wiki/Indigenous_Australians
+ 3 more evidence sources
schedule
Claim 7: “the known record of these island mekosuchines ends within a few centuries of human settlement.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
info
Claim 8: “On mainland Australia, mekosuchines are currently only known from fossils.”
SINGLE SOURCE
This claim is explicitly stated in the '129,000 years of crocodiles' source. No other evidence was provided to corroborate or contradict this, but it is a specific factual claim from a relevant source.
info
Claim 9: “Most [mekosuchine] remains date from more than 40,000 years ago.”
SINGLE SOURCE
The claim that most remains date from more than 40,000 years ago is explicitly stated in the '129,000 years of crocodiles' source. The Wikipedia results provided for this claim are general information about Australia and not relevant to mekosuchine fossils.
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wikipedia NEUTRAL — Australia, officially the Commonwealth of Australia, is a country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands. It has a land area of 7,688,…
https://en.wikipedia.org/wiki/Australia
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wikipedia NEUTRAL — These lists of Australian cities by population provide rankings of Australian cities and towns according to various systems defined by the Australian Bureau of Statistics (ABS). The eight Greater Capi…
https://en.wikipedia.org/wiki/List_of_cities_in_Australia_by…
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wikipedia NEUTRAL — This is a list of most-visited websites worldwide as of April 2026, along with their change in ranking compared to the previous month. This list and its two reference data sources, Similarweb and Semr…
https://en.wikipedia.org/wiki/List_of_most-visited_websites
info
Claim 10: “Modern crocodiles are members of the genus Crocodyls”
SINGLE SOURCE
The provided evidence for this claim consists of dictionary definitions of the word 'modern' and unrelated retail websites. No biological or taxonomic evidence regarding the genus Crocodylus was provided in the search results.
travel_explore
web search NEUTRAL — About Our Brands B.M.E.C. fashiontabulous GB+ genevieve boutique genevieve paris design giovani di venezia G.V.X. modern art modern metals Modern Plastics I Modern Plastics II modern times modz modzfl…
https://www.modernoptical.com/
travel_explore
web search NEUTRAL — May 11, 2026 · The meaning of MODERN is of, relating to, or characteristic of the present or the immediate past : contemporary. How to use modern in a sentence.
https://www.merriam-webster.com/dictionary/modern
travel_explore
web search NEUTRAL — Shop AllModern for the best of modern in every style, smartly priced and delivered fast + free.
https://www.allmodern.com/
info
Claim 11: “Archaeological evidence shows that humans did occasionally eat crocodiles, and sometimes even crafted pendants from their teeth.”
SINGLE SOURCE
This specific detail regarding eating crocodiles and crafting pendants is found in the '129,000 years of crocodiles' source, but no other provided evidence corroborates these specific archaeological findings.
travel_explore
web search NEUTRAL — The term "crocodile" is sometimes used more loosely to include all extant members of the order Crocodilia, which includes the alligators and caimans, the gharial and false gharial as well as other ext…
https://en.wikipedia.org/wiki/Crocodile
travel_explore
web search NEUTRAL — Archaeological evidence shows that humans did occasionally eat crocodiles, and sometimes even crafted pendants from their teeth. Yet such discoveries are quite rare. When ancient archaeological sites …
https://theconversation.com/129-000-years-of-crocodiles-what…
travel_explore
web search NEUTRAL — Quora is a place to gain and share knowledge. It's a platform to ask questions and connect with people who contribute unique insights and quality answers. This empowers people to learn from each other…
https://www.quora.com/
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Claim 12: “Others were much smaller “dwarf” species that inhabited islands such as New Caledonia.”
CORROBORATED
Wikipedia confirms mekosuchines colonized islands including New Caledonia, and a PDF research paper describes Mekosuchus species in New Caledonia and Fiji as 'small, possibly terrestrial' carnivores.
travel_explore
web search NEUTRAL — By the Pleistocene mekosuchines had colonized various islands in the South Pacific, namely Fiji, New Caledonia and Vanuatu.The Lapita people inhabited large parts of Melanesia and Polynesia, including…
https://en.wikipedia.org/wiki/Mekosuchinae
travel_explore
web search NEUTRAL — Islands - New Caledonia. 15 Dec. Written By Søren Bay Kruse Thomsen.Figure 4. Fossil replica of Meiolania platyceps, a close relative of Meiolania mackayi. This species inhabited Lord Howe Island rath…
https://www.theextinctions.com/articles-1/extinctions-new-ca…
travel_explore
web search NEUTRAL — As with mekosuchine species in New Caledonia and Fiji, Mekosuckus kalpokasi sp. nov. was a small, possibly terrestrial carnivore that is now extinct. The differences between the Efate specimen and pre…
https://www.researchgate.net/publication/278348316_New_Extin…
check_circle
Claim 13: “For more than 50 million years, mekosuchines were the apex predators of Australasia.”
CORROBORATED
The claim is directly confirmed by a web search result ('129,000 years of crocodiles') and supported by Wikipedia entries describing Mekosuchinae as the dominant group in Australasia since the Eocene (approx 53-56 million years ago).
menu_book
wikipedia NEUTRAL — Baru, sometimes referred to as the cleaver-headed crocodile, is an extinct genus of Australian mekosuchine crocodilian. Its fossils have been found from various Late Oligocene and Miocene localities f…
https://en.wikipedia.org/wiki/Baru
menu_book
wikipedia NEUTRAL — Mekosuchinae is an extinct clade of crocodilians from the Cenozoic of Australasia. They represented the dominant group of crocodilians in the region during most of the Cenozoic, first appearing in the…
https://en.wikipedia.org/wiki/Mekosuchinae
menu_book
wikipedia NEUTRAL — Quinkana is an extinct genus of mekosuchine crocodylians that lived in Australia from about 25 million to about 20,000 years ago, with the majority of fossils having been found in Queensland. Four spe…
https://en.wikipedia.org/wiki/Quinkana
+ 3 more evidence sources
verified
Claim 14: “an entirely different group of crocodylians known as mekosuchines once dominated the region [Australasia]”
VERIFIED BY REFERENCE
Wikipedia explicitly states that Mekosuchinae is an extinct clade of crocodilians from the Cenozoic of Australasia and that they represented the dominant group of crocodilians in the region during most of the Cenozoic.
travel_explore
web search NEUTRAL — Mangas BL (Boys Love) para leer en español gratis. Encuentra los últimos mangas actualizados día a día en Mangas BL.
https://mangasbl.com/manga/
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web search NEUTRAL — Yupmanga es tu rincon para leer manga en espanol sin publicidad, ni en la web ni dentro de los capitulos. Lectura limpia, series completas y una comunidad que comparte tu pasion.
https://www.yupmanga.com/tag/yaoi
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web search NEUTRAL — May 10, 2026 · TMOtaku es tu lector online de mangas, manhwas e historias BL, GL, romance, acción y más en español. Nuevos capítulos cada día, ¡gratis y sin límites!
https://tmotaku.com/biblioteca/
schedule
Claim 15: “In one example from Vanuatu, a mekosuchine limb bone appears to bear the gnaw marks of a rat”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.