# 'Oddly shaped rock' found in San Mateo County turns out to be huge ice age tooth

> **Newsylist Open Intelligence Dossier** · First detected: 2026-09-10 07:29 UTC · Category: Science · Sources: 6 · Current Velocity: 3.67

## Multi-Source Evidence Table
| Source Outlet | Headline | Published (UTC) | Verification URL |
|---|---|---|---|
| KTLA | Massive Ice Age-era mastodon tooth found in California creek | 2026-09-09 23:07 | [Source Link](https://news.google.com/rss/articles/CBMimgFBVV95cUxQUWhCRDNmT3ljdVpkS0wwb3I1MS1RLVIzbWxRTHQxRVYxSDdmQm4xZ2g1cTl4QzJSTF9vTzFKZWJxN0xFdDROakZIUloxU1hETXZsVUpCRWtPRDkyZEVHQmJuQ0JMRm1ZYlR0aExMYnpEWWlLWjhvS0RySGdrZFh2eDlFRjA5MmllQ3ppQUV6S2ZWUlo5VV84d0RB0gGfAUFVX3lxTE9FOFNXalhCQUlFemlpYlM3RVl4bEROZEh3VkQxMHlWLWVUWV90aE44SlJUQmdERWtHX01SSXdoR09mVGItbjNPbzNENVgyeHAxbEp1MHFDUUZ0Zy12THgtZFZSWnVGUEpNbUZLZlM2Zzd2dlJXdVFWWUR4cXhZMGxLM1RWbHZ1MS1KbjFFd0EzNmFfSHFscHByN0p6VkZ6VQ?oc=5) |
| San Mateo Daily Journal | Mastodon tooth found in San Mateo County creek bed | 2026-09-09 23:07 | [Source Link](https://news.google.com/rss/articles/CBMi2gFBVV95cUxQVXRZblFaa1BrMUl3cUJldEJCbnhLQWY0QUtyZXdkZ2pjSlA0bG1jOE5LeTh3VWNNSEkxazZPX0pzLWdxSkg0VkpoajFpX2ZPOVJELWNIbmJ3and2UklxZWNrQmJZYnA2UHBCbXRRd0VHSi1scy10Z3hUOHpmWmFrYTI2MEk5VXhBUXJzeGp6ZmFhSGg3cFkzRDVvNFR4aXlrMWQzelA4NjdPelZOcnFNb19hUWpTY3RhNmVKVDN6UGtuaFROeExWeXN6Z0JLVEExcDBPVkNGWVFIUQ?oc=5) |
| San Francisco Chronicle | She was looking for frogs in the San Mateo hills. Then she stumbled upon an Ice Age mystery | 2026-09-09 23:07 | [Source Link](https://news.google.com/rss/articles/CBMijgFBVV95cUxObEdFRm43QzdTR0NPMGRONGF6MV9nY0FwZGtJZ05nT2RFdDQzNjNOZEdSZVNKaXBhT0FiYUpybHRucTBqX0R3MVJ3NmpnX29oWkZ1ajFjd09mWTJwc2FvZy1zazFTdVZzSkFrZklNZjlweTM1bTdxb3BOTGhncTVRYmVsd090OWtWQi1UQXlR?oc=5) |
| The Mercury News | ‘Immaculate condition:’ Rare mastodon fossil found in San Mateo County creek | 2026-09-09 23:07 | [Source Link](https://news.google.com/rss/articles/CBMiswFBVV95cUxQd0puMk93VVRIYkNYV1Q5Q2lRT0FQUmtqUU5uUk5oU3daelFGWmVCblZ2YXRDM2hMMjVzZ2lUWEdmNi0xLW16LVh0MVpUdDk0VENwMFBqaW43a1JsaFBSamJMNXhTcndXaXFRZS1lT2huR1VGVm5ZSFBxd2JJRFdzb05jUkZ2Z0xsM19od0kteUhvbVQ0R3o0WERsZ1FMZ1NzbHZQYXhoOWNLLUNrVEQ4WDBOSdIBuAFBVV95cUxNUVZ3V2tpUERXXzBoeTF2V3VTdVJETE5VYWx3OWdVYzVQb1FGb2FVQ0k5TjhFemU0TmpsZ2pVaHBrZ2tvbFUzMEFYazJPQkpaNXAzVkhOTV9TOFFXaWFROEZpeXRwT2k3Rk5GRnVlNHlKcjFCc0N1TXZ3dDVOLUx6aXJ3Yl81WVlkRjZud09TbVEtdHBaYlBsYkU0YXFOX1g) |
| KRON4 | Scientist makes jaw-dropping fossil discovery in Bay Area | 2026-09-09 23:07 | [Source Link](https://news.google.com/rss/articles/CBMimgFBVV95cUxOOUhjWG5hUXY0ZjZ2dVROdlU1LTk5LXVqYkllNTFVX1d2eDlyTEpLQXZXUlN3eHFLck9UMHpnT0QwLWt5c1RyTFFNVTMzS3lCYXNNNHpwTENfT0NCbU9LSy1EODZrd1RDdHZfQkRmc0h1T253bHJ5RlN0T25DcS1DZDhadERqU3FwczVmNHZqRUlUSE9GZVVEOVFB0gGfAUFVX3lxTFB2UzBncHZvd3lrcE1EbjZOUzJOX1FVZWJfZFhnd2VnSlN0NUtvX3I1OWRsZndzOHA0R0dyMDh3ZS1FT3d1SUx0bnEtc0FIcGVsWVZjR1JFNmI5bHcyWE1FNHdBNFpmU04xbXQxZHdGOV9mVkFmQUtGSWpyeG5ia3Z0ZnlveGc0ZUpmejRwM0F1cS16RHh1c0RkQUZsc21mWQ?oc=5) |
| SFGATE | 'Oddly shaped rock' found in San Mateo County turns out to be huge ice age tooth | 2026-09-09 23:07 | [Source Link](https://news.google.com/rss/articles/CBMic0FVX3lxTE9MTTlmS1c3Zm5SZHZGRXRsQWlzd3Z3WjJWTTdPbXp1WDdLamVuT29ZQWhFSk1TMXRJa0xFVHNQaWVNQWZ2dlNvMTRWOF9mSVFaOF9TY1dmVHRiY3hZT2pqMGh4clVzODF5YTB2TVN4ckREems?oc=5) |

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*Synthesized by Newsylist Open Intelligence Engine under E-E-A-T journalistic standards.*