![Matthew CLAPHAM | Professor | PhD | University of California, Santa Cruz, California | UCSC | Department of Earth & Planetary Sciences | Research profile Matthew CLAPHAM | Professor | PhD | University of California, Santa Cruz, California | UCSC | Department of Earth & Planetary Sciences | Research profile](https://i1.rgstatic.net/ii/profile.image/274018410430469-1442342488942_Q512/Matthew-Clapham.jpg)
Matthew CLAPHAM | Professor | PhD | University of California, Santa Cruz, California | UCSC | Department of Earth & Planetary Sciences | Research profile
![Matthew Clapham on X: "@LenaDoesScience @gsciencelady This obviously calls for the *official* tier ranking of geological time periods. https://t.co/XX1EFFLH08" / X Matthew Clapham on X: "@LenaDoesScience @gsciencelady This obviously calls for the *official* tier ranking of geological time periods. https://t.co/XX1EFFLH08" / X](https://pbs.twimg.com/media/EfPy3BYUwAAJy6r.png)
Matthew Clapham on X: "@LenaDoesScience @gsciencelady This obviously calls for the *official* tier ranking of geological time periods. https://t.co/XX1EFFLH08" / X
![Hawk sized insects ended not only due to oxygen level but also due to predators; Research | SayPeople Hawk sized insects ended not only due to oxygen level but also due to predators; Research | SayPeople](https://i0.wp.com/saypeople.com/wp-content/uploads/2012/06/giant-insect-wing.jpg?fit=620%2C276)
Hawk sized insects ended not only due to oxygen level but also due to predators; Research | SayPeople
![PDF] Understanding mechanisms for the end-Permian mass extinction and the protracted Early Triassic aftermath and recovery | Semantic Scholar PDF] Understanding mechanisms for the end-Permian mass extinction and the protracted Early Triassic aftermath and recovery | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/10aa6aceeab6bc0f342764c2689dd214ad8ccf3e/2-Figure1-1.png)
PDF] Understanding mechanisms for the end-Permian mass extinction and the protracted Early Triassic aftermath and recovery | Semantic Scholar
![PDF) Estimating spatial variation in origination and extinction in deep time: a case study using the Permian-Triassic marine invertebrate fossil record PDF) Estimating spatial variation in origination and extinction in deep time: a case study using the Permian-Triassic marine invertebrate fossil record](https://i1.rgstatic.net/publication/368395814_Estimating_spatial_variation_in_origination_and_extinction_in_deep_time_a_case_study_using_the_Permian-Triassic_marine_invertebrate_fossil_record/links/64352756609c170a130bb3db/largepreview.png)
PDF) Estimating spatial variation in origination and extinction in deep time: a case study using the Permian-Triassic marine invertebrate fossil record
![Matthew E. Clapham University of California, Santa Cruz Disparity trends in the shell coiling shape of ammonoids. - ppt download Matthew E. Clapham University of California, Santa Cruz Disparity trends in the shell coiling shape of ammonoids. - ppt download](https://images.slideplayer.com/26/8773238/slides/slide_3.jpg)
Matthew E. Clapham University of California, Santa Cruz Disparity trends in the shell coiling shape of ammonoids. - ppt download
![PDF) WUCHIAPINGIAN (LOPINGIAN, LATE PERMIAN) BRACHIOPODS FROM THE EPISKOPI FORMATION OF HYDRA ISLAND, GREECE | Matthew E Clapham - Academia.edu PDF) WUCHIAPINGIAN (LOPINGIAN, LATE PERMIAN) BRACHIOPODS FROM THE EPISKOPI FORMATION OF HYDRA ISLAND, GREECE | Matthew E Clapham - Academia.edu](https://0.academia-photos.com/attachment_thumbnails/31504591/mini_magick20190426-7251-1u31qr1.png?1556272353)
PDF) WUCHIAPINGIAN (LOPINGIAN, LATE PERMIAN) BRACHIOPODS FROM THE EPISKOPI FORMATION OF HYDRA ISLAND, GREECE | Matthew E Clapham - Academia.edu
![Mean species richness for collections containing silicified fossils... | Download Scientific Diagram Mean species richness for collections containing silicified fossils... | Download Scientific Diagram](https://www.researchgate.net/profile/Matthew-Clapham/publication/251119375/figure/fig3/AS:669067396526080@1536529506100/Mean-species-richness-for-collections-containing-silicified-fossils-solid-line-and_Q320.jpg)
Mean species richness for collections containing silicified fossils... | Download Scientific Diagram
![Studying oxygen in Earth's oceans, ASU scientists discover clues to recovery from mass extinction | ASU News Studying oxygen in Earth's oceans, ASU scientists discover clues to recovery from mass extinction | ASU News](https://news.asu.edu/sites/default/files/styles/asu_news_article_hero/public/article_heros/alexa_scholl_0.jpeg?itok=q7cF6w7S)
Studying oxygen in Earth's oceans, ASU scientists discover clues to recovery from mass extinction | ASU News
![Matthew E. Clapham's research works | University of California, Santa Cruz, California (UCSC) and other places Matthew E. Clapham's research works | University of California, Santa Cruz, California (UCSC) and other places](https://www.researchgate.net/profile/Daniel-Killam/publication/354129906/figure/fig1/AS:1065833690312704@1631125962615/A-comparison-of-fossil-and-modern-nitrogen-isotope-values-B-comparison-of-fossil_Q320.jpg)