turnover = upside down?

[NewHopeR]

Context:

Atmospheric Carbon Injection Linked to End-Triassic Mass Extinction

Theend-Triassic mass extinction (~201.4million yearsago),marked by terrestrial ecosystem turnover and up to ~50% loss in marine biodiversity, has been attributed to intensified volcanic activity duringthebreak-upofPangaea.Here,wepresentcompound-specificcarbon-isotopedataoflong-chain n-alkanes derived from waxes ofland plants, showing a ~8.5 per mil negative excursion, coincident with the extinction interval. These data indicate strong carbon-13 depletion of the end-Triassic
atmosphere,withinonly10,000to20,000years.Themagnit udeandrateofthiscarbon-cycle disruption 3 can be explained by the injection of at least ~12 × 10 gigatons of isotopically depleted carbon
as methane into the atmosphere. Concurrent vegetation changes reflect strong warming and an
enhancedhydrologicalcycle.Hence,end-Triassiceventsarerobustlylinkedtomethane-derivedmassive
carbonrelease and associated climate change.

[Barb_D]

What in heaven's name happened to the formatting of that??

OrshouldI ask-whatinheaven's-name happened tothefomatting??

Turnover - replacement.
When shift two comes in to work in factor and shift one goes home, that's the shift turnover.