[dinosaur] Mammal recovery after K-Pg extinction happened fast + NOVA Rise of the Mammals

Ben Creisler
[email protected]

New papers:

Free pdf:

T. R. Lyson, I. M. Miller, A. D. Bercovici, K. Weissenburger, A. J.
Fuentes, W. C. Clyde, J. W. Hagadorn, M. J. Butrim, K. R. Johnson, R. F.
Fleming, R. S. Barclay, S. A. Maccracken, B. Lloyd, G. P. Wilson, D. W.
Krause & S. G. B. Chester (2019)
Exceptional continental record of biotic recovery after the
Cretaceous–Paleogene mass extinction.
Science: eaay2268 (advance online publication)
DOI: 10.1126/science.aay2268
https://urldefense.proofpoint.com/v2/url?u=https-3A__science.sciencemag.org_content_early_2019_10_23_science.aay2268&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=tWSbhoOrBj-UnnWm5FWceB2VWhhaisL5pHjoVKdmzcQ&e= 

Free pdf:
https://urldefense.proofpoint.com/v2/url?u=https-3A__science.sciencemag.org_content_early_2019_10_23_science.aay2268https-3A__science.sciencemag.org_content_early_2019_10_23_science.aay2268_tab-2Dpdf&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=upIkg6uuE4mthlFO_aIrMh0qLTyu72saJaZJyya2l2M&e= 



We report a time-calibrated stratigraphic section in Colorado that contains
unusually complete fossils of mammals, reptiles, and plants, and elucidates
the drivers and tempo of biotic recovery during the poorly known first
million years after the Cretaceous–Paleogene mass extinction (KPgE). Within
~100 thousand years (ka) post-KPgE, mammalian taxonomic richness doubled
and maximum mammalian body mass increased to near pre-KPgE levels. A
three-fold increase in maximum mammalian body mass and dietary niche
specialization occurred at ~300 ka post-KPgE, concomitant with increased
megafloral standing species richness. The appearance of additional large
mammals occurred by ~700 ka post-KPgE, coincident with the first appearance
of Leguminosae (bean family). These concurrent plant and mammal
originations and body mass shifts coincide with warming intervals,
suggesting climate influenced post-KPgE biotic recovery.



=====


Elizabeth Pennisi (2019)
How life blossomed after the dinosaurs died.
Science 366(6464): 409
DOI: 10.1126/science.366.6464.409
https://urldefense.proofpoint.com/v2/url?u=https-3A__science.sciencemag.org_content_366_6464_409&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=THtTvWSk3n14sqrrALEiP47lgOW58hySBnAiuA6L01M&e= 


Researchers have discovered that Corral Bluffs, 100 kilometers from Denver,
provides a well-dated fossil treasure trove that has revealed how life
recovered from the impact of a giant asteroid 66 million years ago. Unlike
many fossil sites from the era just after the dinosaurs went extinct,
Corral Bluffs' marine shale preserves a complete plant, animal, and
environmental record. The team was able to establish high-resolution dating
of the layers there, using pollen to pinpoint when the asteroid hit and
other methods to establish key timepoints. At first, ferns and animals no
bigger than 6 kilograms dominated that landscape, but by 100,000 years
later, palms had taken over and mammals were twice as big and more diverse.
This trend continued, fueled by the rise of new kinds of plants and
particularly by the appearance of protein-rich legumes. The findings will
help researchers understand what may happen with the mass extinction that
may be going on right now.

====


News:

https://urldefense.proofpoint.com/v2/url?u=https-3A__www.washington.edu_news_2019_10_24_fossil-2Dmammals-2Ddenver-2Dbasin_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=haQd9QWAqbaVSq8ohNg12L94gtlH_Ot_riDXa_Nh-rc&e= 

https://urldefense.proofpoint.com/v2/url?u=https-3A__www.coloradocollege.edu_newsevents_newsroom_three-2Dcc-2Dalumni-2Dinvolved-2Din-2Dextraordinary-2Dfossil-2Ddiscovery-23.XbHuEZJKjX4&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=IjuuTlHoSbbYn4U_CbYjjRnpMskmAVYpRG3Yplb--nM&e= 

https://urldefense.proofpoint.com/v2/url?u=https-3A__www.bkreader.com_2019_10_24_brooklyn-2Dcollege-2Dprofessor-2Dpart-2Dof-2Dgroundbreaking-2Ddiscovery-2Don-2Dhow-2Dearth-2Dgave-2Drise-2Dto-2Dmammals_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=0ibCLDN_mYNhOKiE97AQZOfHn5FFlJrVKvUAr6nd_PM&e= 


***

https://urldefense.proofpoint.com/v2/url?u=https-3A__www.sciencenews.org_article_fossils-2Dcapture-2Dmammals-2Drecovery-2Dafter-2Ddinosaur-2Dkilling-2Dasteroid&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=tyNNc7iY0bxZ7uS7SPOA6BvyDpVvbqL87HhBd5o-AJ4&e= 

https://urldefense.proofpoint.com/v2/url?u=https-3A__www.nytimes.com_2019_10_24_science_fossils-2Dmammals-2Ddinosaurs-2Dcolorado.html&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=IYOMt0YkOwyyGNs8xJgeSvWs2r164rRnGtzXVp_k9YM&e= 

https://urldefense.proofpoint.com/v2/url?u=https-3A__www.smithsonianmag.com_science-2Dnature_fossil-2Dsite-2Dreveals-2Dhow-2Dmammals-2Dthrived-2Dafter-2Ddeath-2Dof-2Ddinosaurs-2D180973404_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=YdSyPyi120E5qa_lgOiKf3S6CRisX7I67V6LLUSBWXE&e= 

https://urldefense.proofpoint.com/v2/url?u=https-3A__cosmosmagazine.com_palaeontology_how-2Dmammals-2Dinherited-2Dthe-2Dearth&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=xbanWvj24GvjVosnPFSHU9HpwXlWJ6aIA3HRogkeLCw&e= 

https://urldefense.proofpoint.com/v2/url?u=https-3A__denver.cbslocal.com_2019_10_24_mammals-2Dfossils-2Dcolorado-2Dsprings-2Dexplain-2Dearts-2Dhistory_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=-Ebrb4INzILEuoNBETciMdOdAwL-lvJfW52cAeiOHMs&e= 


==========

On a related topic, NOVA on PBS television next week is

The Rise of Mammals
Premiering 30 October 2019 on PBS at 9 pm ET

Preview

https://urldefense.proofpoint.com/v2/url?u=https-3A__www.pbs.org_wgbh_nova_video_rise-2Dof-2Dthe-2Dmammals_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=ZfMVYhwUB4pRuwe05lmUE97tKAwQNoe7rW88HoLnkvg&e= 

==


On YouTube:

Elusive Mammal Fossil Discovery Paints Timeline of Life after Dinosaurs
Died

https://urldefense.proofpoint.com/v2/url?u=https-3A__www.youtube.com_watch-3Fv-3D4kJf7XnhPT0&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=NMaWTg6klhsfpJa3_7RSzSgbq-DM-It8XqKyXdywMPY&e= 

Rise of the Mammals I Preview

https://urldefense.proofpoint.com/v2/url?u=https-3A__www.youtube.com_watch-3Fv-3D6eib9j-2DgV7U&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=vHSrlmit7lx_3uvHzYuEAZyDtbxME3LeusaKXBXWH64&e= 

Rise of the Mammals I Prologue

https://urldefense.proofpoint.com/v2/url?u=https-3A__www.youtube.com_watch-3Fv-3DVgardHAgLXY&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=C9Xr1QrIFxxlTzVK7D66I9J7ZeWfommMgzp2n7_SLvY&e= 


====

Review:

Riley Black (2019)
Stepping out of the dinosaurian shadow.
Science 366(6464): 430
DOI: 10.1126/science.aaz6313
https://urldefense.proofpoint.com/v2/url?u=https-3A__science.sciencemag.org_content_366_6464_430&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=KNKkinJ7-RXc5rl7C3UatFubV5MlOalPqsBb7ASIIIk&e= 

Summary

We live in the Age of Mammals, yet warm-blooded beasts are still
overshadowed by dinosaurs. But a new NOVA documentary—"Rise of the
Mammals"—seeks to change that and, in the process, offers viewers a window
into paleontology beyond bone hunting.

Also:

https://urldefense.proofpoint.com/v2/url?u=https-3A__blogs.sciencemag.org_books_2019_10_24_rise-2Dof-2Dthe-2Dmammals_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=z3Tezq4hCAzC9oz9-Djd97Og2mZf-oUt4dJ1g6yCZTw&s=pUzO_-v9ruyGy5MNonXFZhpp1KKBAz6cKke1WXt5rb0&e= 



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