This 100-Million-Year-Old Fossil Reveals a Brutal Chain of Cretaceous Violence
Sometime during the Cretaceous period, an ichthyosaur ate a pterosaur. Then, a kronosaurus violently ripped the ichthyosaur apart. And all this, miraculously, ended up well-preserved enough in a single fossil record.
- ▪Sometime during the Cretaceous period, an ichthyosaur ate a pterosaur.
- ▪Then, a kronosaurus violently ripped the ichthyosaur apart.
- ▪And all this, miraculously, ended up well-preserved enough in a single fossil record.
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| Original publisher | Gizmodo |
| Canonical URL | https://gizmodo.com/this-100-million-year-old-fossil-reveals-a-brutal-chain-of-cretaceous-violence-2000794370 |
| Publication time | Tue, 04 Aug 2026 16:20:17 +0000 |
| Retrieval time | 2026-08-04T16:25:41.251Z |
| Last seen | 2026-08-04T16:25:41.251Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | KlHUuYRSC3pm · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Sometime during the Cretaceous period, an ichthyosaur ate a pterosaur. Then, a kronosaurus violently ripped the ichthyosaur apart. And all this, miraculously, ended up well-preserved enough in a single fossil record. In 2022, researchers identified a fossil of an ichthyosaur, a dolphin-like marine reptile that lived more than 100 million years ago. Investigations revealed fragments of a pterosaur inside the ichthyosaur’s stomach, making it the first known evidence of an ichthyosaur—a marine reptile—eating a pterosaur—a flying reptile. This on its own would have been a major discovery, but the fossil had more gifts to offer. The ichthyosaur was also ravaged by some creature with a huge bite, as researchers report in a paper published recently in Gondwana Research.
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