Overall, posts express strong agreement and high interest, often highlighting the study's challenge to previous molecular hypotheses, such as references to fossils versus molecular clocks. The tone varies from academic engagement to enthusiasm, for example, one post calls the research a 'valuable contribution' while others discuss the implications for understanding the origin of placental mammals.
AgreementStrong agreement
Most posts support the findings and acknowledge the significance of the research, with some emphasizing mounting evidence and scientific debate.
InterestHigh interest
Discussions focus intensely on the implications of the study, showing high curiosity and engagement with the topic of mammal evolution.
EngagementModerate engagement
Many users reference specific methods, evidence, or broader debates, indicating active participation, though some posts are more surface-level or react with shared enthusiasm.
ImpactHigh impact
Discussants seem to recognize this research as a meaningful advancement in understanding mammalian evolution, with potential to influence future studies and debates.
Abstract in brief
The study used 4541 phenomic characters and molecular data from 86 species to build a phylogenetic tree, indicating that placental mammals originated after the Cretaceous-Paleogene (KPg) boundary.
The results challenge previous molecular findings by highlighting phenomic evidence that places Sundatheria (Dermoptera and Scandentia) as closest to Primates and confirms a close relationship between elephants (Proboscidea) and sea cows (Sirenia).
The tree suggests that the earliest placental mammals split into Xenarthra (armadillos, sloths) and Epitheria, with extinct New World species being some of the oldest Afrotheria members.]
@Mad_Lancaster @denisjabaudon @WiringTheBrain There is mounting evidence supporting this notion
https://t.co/C85vWcmYfF
https://t.co/6SiYJLJ97X
Jan 13, 2022 · 3 likes · 2,481 followersView post →
DS
3D Anatomy Studios
@3DAnatomyStudio · X
Human #CTScan from the Visible Human Project: https://t.co/Q4RTOC8qg6. Our cat #CTScans available for free download at: https://t.co/YNoVzAgi7m. Estimate of 60+ million years since the most recent common ancestor of humans & cats from O'Leary et al. 2013: https://t.co/4TkdPMRccF.
May 26, 2021 · 3 likes · 1,449 followersView post →
AS
Andrej Spiridonov
@AndrejSpiridon4 · X
@pastramimachine @TJNear This seems to be an artefact of the molecular clocks. The hypothesis of pre K-Pg radiation of modern placental mammals was falsified many times on the grounds of incongruence with the preservational constraints of the fossil record https://t.co/q8vC9kaxUz
https://t.co/X5S1GMMgiJ
Mar 1, 2023 · 2 likes · 1,776 followersView post →
RD
Rulon James Downard
@RJDownard · X
@Jesus_is_G_d @bubbacav85 @TertiusIII @TakeThatEpi @carlsmythe @tighe15 @StandBackUp2 @commonsensejan @michellmybell1 @rmbctious @ReviewResist @donholtmac @Cern_lXXl @Loriniowa @TedPerkins10 @LeannEAF @umfpt @Schmoop0521 @andyguy @MaryVMos1 @tklforgiven @geraldpayne25 @surgerysleeper @rorylane @rafearia @the_godparticle @RLBays @zythophiliac @feyeleanor @alan244g @phyzayo @funkydoolah @ScientiaPercept @2Cents69 @Mwforhr @omeagoz @Denbar64 @CollinOctantis @Kopernikus1966 @bobcat7000 @paulr140 @Pamiekp @TiSeven2 @CATGOD20 @delology @SteveTiger999 @amateurexegete Springer, Mark S., Robert W. Meredith, Emma C. Teeling, & William J. Murphy. 2013. “Technical Comment on ‘The Placental Mammal Ancestor and the Post-K-Pg Radiation of Placentals’.” Science 341 (9 August): 613.
Comparative genomic studies of primates help us understand the evolution of the human genome. Recent research featuring genomic data from 186 primate species clarifies evolutionary relationships and has implications for…
This video discusses the reliability of fossilizable data in constructing phylogenies, highlighting recent research that challenges previous molecular findings and emphasizes phenomic evidence for mammal evolution…
https://t.co/xN4ytDpe3L
Love a good palaeo paper in the morning. I know the topic of ancestors for large groups is debated but I really liked the takes in this study. If anyone has good reads on a more recent state of the placental mammal origin debate, I'd love to read them.
@pastramimachine @TJNear This seems to be an artefact of the molecular clocks. The hypothesis of pre K-Pg radiation of modern placental mammals was falsified many times on the grounds of incongruence with the preservational constraints of the fossil record https://t.co/q8vC9kaxUz
https://t.co/X5S1GMMgiJ
Mar 1, 2023 · 2 likes · 1,776 followersView post →
TJ
Tom James
@TACJ · X
@robertsharp59 The paper https://t.co/47EfAbuHa7
The ancestor https://t.co/gHo5G09dej
@Mad_Lancaster @denisjabaudon @WiringTheBrain There is mounting evidence supporting this notion
https://t.co/C85vWcmYfF
https://t.co/6SiYJLJ97X
Jan 13, 2022 · 3 likes · 2,481 followersView post →
DS
3D Anatomy Studios
@3DAnatomyStudio · X
Human #CTScan from the Visible Human Project: https://t.co/Q4RTOC8qg6. Our cat #CTScans available for free download at: https://t.co/YNoVzAgi7m. Estimate of 60+ million years since the most recent common ancestor of humans & cats from O'Leary et al. 2013: https://t.co/4TkdPMRccF.
May 26, 2021 · 3 likes · 1,449 followersView post →
Evolutionary constraint and innovation across hundreds of placental ...
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