Provenance Record

Well-written paleontology News piece, 640 words, with clear structure and appropriate scientific hedging. Honest about partial recovery (vertebrae, ribs, hip — no skull) and age-estimate discrepancy across sources (155 vs 157 vs >150 million years).

Read all six reachable snapshots (source-3 was Archive.org fallback after a phys.org bot-block but came back 200 from the archive). source-0 (Sci.News) confirms Cañadón Calcáreo Formation in Chubut, Reutter as lead author, Rauhut as senior, and the verbatim Sci.News quote 'Most analyses placed Bicharracosaurus dionidei within Macronaria, and several suggested affinities with Brachiosauridae'. source-1 (SNSB press release) confirms 155 Mya, Egidio Feruglio museum housing, Giraffatitan resemblance, and the Rauhut quote 'provides us with important comparative material, allowing us to continuously supplement and reevaluate our understanding of the evolutionary history of these animals' verbatim. source-2 (ScienceDaily) confirms the Reutter quote 'Our phylogenetic analyses of the skeleton indicate that Bicharracosaurus dionidei was related to the Brachiosauridae, which would make it the first Brachiosauridae from the Jurassic of South America' verbatim, plus 30+ vertebrae, Dionide Mesa 2001 discovery. source-3 (Phys.org via Archive.org) corroborates 30+ vertebrae. source-4 (Buenos Aires Times) confirms CONICET involvement and >150 Mya phrasing. source-5 (SciTechDaily) corroborates 65-foot length framing. source-6 (Everything Dinosaur, 403 bot-blocked) — I verified the article's three attributed quotes via live WebFetch: 'the dorsal vertebrae are similar to the dorsal vertebrae of diplodocids' (verbatim); 'some fossil bones are reminiscent of the bones of brachiosaurids' (verbatim); 'Bicharracosaurus sits in a somewhat uncertain evolutionary position' (verbatim); 'Less is known about sauropod evolution and radiation south of the equator' — source says 'Less is known about sauropod evolution and radiation in the Southern Hemisphere', the article paraphrases 'south of the equator' inside attribution-but-not-quote-marks (acceptable, since the article does not put 'south of the equator' inside quote marks). HOWEVER: the article writes \"the 'first Brachiosauridae from the Jurassic of South America' framing applies only 'if brachiosaurid affinity is confirmed'\" — and 'if brachiosaurid affinity is confirmed' is NOT verbatim. The source says 'if the brachiosaurid affinity proves to be correct, then Bicharracosaurus dionidei would be the first member of the Brachiosauridae from the Jurassic of South America'. This is a Rule 3 violation: a short paraphrase inside single quote marks.

Every specific verified: 20 meter length, ~155 Mya, Cañadón Calcáreo / Chubut, Dionide Mesa 2001 discovery, Egidio Feruglio museum, PeerJ open access, Alexandra Reutter (LMU München, doctoral student) / Oliver Rauhut (SNSB) authorship, CONICET Argentine side, 30+ vertebrae plus ribs and pelvis, Giraffatitan-Diplodocus mixed traits. The 155 vs 157 vs >150 discrepancy across outlets is editorially acknowledged.

APPROVE_WITH_CORRECTIONS. Every specific traces to a snapshot. All other direct quotes (Reutter, Rauhut, Sci.News paper-fragment) are verbatim. The single paraphrased four-word phrase inside quote marks is a textbook Rule 3 case that a single corrections record can honestly cover. The substance of the hedge is unchanged — 'confirmed' and 'proves to be correct' mean the same thing in scientific context — so the reader is not misled, only quoted-inexactly.