There’s a New T. Rex in Town—and It Swims
A new species of mosasaur named Tylosaurus rex has been discovered in Texas, previously misidentified in museum collections. This species, measuring 43 feet long, is noted for its size and aggressive nature compared to other mosasaurs. Researchers highlight evidence of violence within this species, suggesting it was a formidable predator in the ancient seas of North America.
- ▪The newly discovered mosasaur is named Tylosaurus rex, meaning 'king of the tylosaurs.'
- ▪T. rex measures 43 feet long, making it an apex predator of the shallow sea.
- ▪The species exhibits razor-sharp serrated teeth and a more aggressive demeanor than other mosasaurs.
2 outlets in our directory ran this story, first to last over 21 hours. All of the coverage we found sits in one bucket: centre. That one-sidedness is itself worth noticing.
Nautilus files mainly under culture. We currently carry 31 of its stories.
Story provenance
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Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | Nautil |
| Canonical URL | https://nautil.us/theres-a-new-t-rex-in-town-and-it-swims-1281141/ |
| Publication time | Fri, 22 May 2026 14:18:36 +0000 |
| Retrieval time | 2026-05-22T14:32:02.402Z |
| Last seen | 2026-05-22T14:32:02.402Z |
| 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 | zQlMrDWRNXES · 2 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 |
Rights status (four layers)
WeSearch handling by dimension
| 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
{"@context":"https://schema.org","@type":"Article","headline":"There’s a New T. Rex in Town—and It Swims","description":"There’s a New T. Rex in Town—and It Swims: It’s mean, too","image":["https://lede-admin.nautil.us/wp-content/uploads/sites/70/2026/05/Currie_HERO_2e6f70.png"],"datePublished":"2026-05-22T14:18:36+00:00","dateModified":"2026-05-22T14:18:37+00:00","author":[{"@type":"Person","name":"Jake…
Excerpt limited to ~120 words for fair-use compliance. The full article is at Nautil.
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