Lost with the National Museum of Brazil – Kamehameha’s Cloak – Luto #MuseuNacional

On September 2, 2018, the National Museum of Brazil (Museu Nacional) was gutted by fire. 2018 was the Museu Nacional’s 200th year. This post is one of series in which I discuss an important specimens that may have been lost to science in the blaze. In 1824, King Kamehameha II Liholiho of Hawaii gave Brazil’sContinue reading “Lost with the National Museum of Brazil – Kamehameha’s Cloak – Luto #MuseuNacional”

Lost with the National Museum of Brazil – Santanaraptor – Luto #MuseuNacional

On September 2, 2018, the National Museum of Brazil (Museu Nacional) was gutted by fire. 2018 was the Museu Nacional’s 200th year. This post is one of series in which I discuss an important specimens that may have been lost to science in the blaze. In 1999, Alexander Kellner, a researcher at the Museu Nacional,Continue reading “Lost with the National Museum of Brazil – Santanaraptor – Luto #MuseuNacional”

Lost with the National Museum of Brazil – Luzia – Luto #MuseuNacional

On September 2, 2018, the National Museum of Brazil (Museu Nacional) was gutted by fire. The loss has hit the paleontology community (and the larger museum community) hard. I will highlight over the next few days some of the many priceless specimens that have been lost. This year, the Museu Nacional celebrated its 200th year.Continue reading “Lost with the National Museum of Brazil – Luzia – Luto #MuseuNacional”

When Two Species Merge into One – #365papers – 2018 – 60

Kearns, Restani, Szabo, Schoder-Nielsen, Kim, Richardson, Marzluff, Fleisher, Johnsen, and Omland, 2018, Genomic evidence of speciation reversals in ravens: Nature Communications, v. 9, 906 What’s it about? The authors describe how what were once two distinct lineages of ravens (the Californian and the holarctic) have merged into what we now refer to as the commonContinue reading “When Two Species Merge into One – #365papers – 2018 – 60”

Clay Keeps Records of Ancient Water – #365papers – 2018 – 56

Mix and Chamberlain, 2014, Stable isotope records of hydrologic change and paleotemperature from smectite in Cenozoic western North America: Geochimica et Cosmochimica Acta, v. 141, p. 532-546 What’s it about? Smectite is a specific kind of clay mineral, common in volcanic ash. This kind of clay incorporates water during its formation, which, as the authorsContinue reading “Clay Keeps Records of Ancient Water – #365papers – 2018 – 56”

Where, Oh Where Do the Ganglia Go (in Lampreys) – #365papers – 2018 – 50

Modrell, Hockman, Uy, Buckley, Sauka-Spengler, Bronner, and Baker, 2014, A fate-map for cranial sensory ganglia in the sea lamprey: Developmental Biology, v. 385, p. 405-416 What’s it about? Fate-maps show where tissues in an embryo wind up in the adult. It is truly remarkable how cells move around in embryos. I mean, seriously. In thisContinue reading “Where, Oh Where Do the Ganglia Go (in Lampreys) – #365papers – 2018 – 50”

Squids, and Octopodes, and Nautiluses, Oh My! – #365papers – 2018 – 49

Sanchez, Setiamarga, Tuanapaya, Tongtherm, Winkelmann, Schmidbaur, Umino, Albertin, Allcock, Perales-Raya, Gleadall, Strugnell, Smiakov, and Nabhitabhata, 2018, Genus-level phylogeny of cephalopods using molecular markers: current status and problematic areas: PeerJ v. 6, e4331 What’s it about? Using DNA sequences, the authors sort out the evolutionary relationships among squids, octopuses, nautiluses, and cuttlefish.

We Know Sea Level Rise is Getting Faster – #365papers – 2018 – 48

Nerem, Beckley, Fasullo, Hamlington, Masters, and Mitchum, 2018, Climate-change-driven accelerated sea-level rise detected in the altimeter era: Proceedings of the National Academy of Sciences What’s it about? Sea level is rising. In fact, it’s rising faster and faster. Using satellite data, the authors show that this is the case, even when variations from volcanic eventsContinue reading “We Know Sea Level Rise is Getting Faster – #365papers – 2018 – 48”

Waves of Extinction Add Up – #365papers – 2018 – 47

Wang and Zhong, 2018, Estimating the number of pulses in a mass extinction: Paleobiology, 1-20 What’s it about? The problem with the rock record is that it is incomplete. This means that what was really a gradual extinction could look abrupt, or that a large-scale mass extinction can look like it was spread out. TheContinue reading “Waves of Extinction Add Up – #365papers – 2018 – 47”

Did the Chixulub Impact Make the Oceans Erupt More? – #365papers – 2018 – 43

Byrnes and Karlstrom, 2018, Anomalous K-Pg-aged seafloor attributed to impact-induced mid-ocean ridge magmatism: Science Advances, v. 4: eaao2994 What’s it about? The Chixulub Impact is the event linked to the extinction of the dinosaurs. The authors here show that at the same time as the impact, ocean floor spreading increased for just a little while.Continue reading “Did the Chixulub Impact Make the Oceans Erupt More? – #365papers – 2018 – 43”