Exstinctio Cretacea-Palaeogenica

[thumb|Saxum e [Vyomina. Media imagine videtur stratum canum argillosum (iridio divitissimum) qua recognoscitur terminus Cretaceus Palaeogenicus]]
[thumb|Rupes iuxta [Drumheller Albertae. Subter strata cinerea Cretacea, supra strata nigra Palaeogenica videntur.]]
thumb|Tabula exstinctionum marinorum maiorum. Exstinctione Cretacea Palaeogenica (K-Pg), ad dextram partem visa, specierum fere 30 % breve temporis spatium exstinctae sunt.
**Exstinctio Cretacea-Palaeogenica**, Anglice *Cretaceous–Paleogene extinction event (K-Pg)*, fuit magna exstinctio circiter trium quartarum in orbe terrarum specierum plantarum et animalium, in quo numero fuerunt omnes dinosauri, proavis avium hodiernorum exceptis. Abhinc annorum 66.043 ± 0.011 milies milium per admodum breve tempus accidit, terminum Cretacei Mesozoicique designans, et Palaeogenici Kaenozoicique aperiens.

Causa harum exstinctionum fuisse censetur impactum asteroidis qui astroblema Chicxulub in partibus borealibus Yucataniae et sub aquis adiacentibus Caribicis cadens, motus terrae, inundationes, refrigerationem climaticam provocaverit.

Rariores autem sunt species quae hanc exstinctionem supervixerunt, exempli gratia *Braarudosphaera bigelowii*, alga ordinis Coccolithalium.

## Notae 
## Bibliographia 
* Luis W. Alvarez, Walter Alvarez, Frank Asaro, Helen V. Michel, "Extraterrestrial Cause for the Cretaceous-Tertiary Extinction" in *Science* n.s. vol. 208 (6 Iunii 1980) pp. 1095-1108 alibi
* Alfio Alessandro Chiarenza et al., "Asteroid impact, not volcanism, caused the end-Cretaceous dinosaur extinction" in  (20 Iunii 2020)
* Kunio Kaiho, Naga Oshima, "Site of asteroid impact changed the history of life on Earth: the low probability of mass extinction" in *Scientific Reports* vol. 7 no. 14855 (9 Novembris 2017)
* Maureen A. O’Leary et al., *Stratigraphy and paleobiology of the Upper Cretaceous-Lower Paleogene sediments from the Trans-Saharan Seaway in Mali* (*Bulletin of the American Museum of Natural History*, no. 436) Textus interretialis
* Peter Schulte et al., "The Chicxulub Asteroid Impact and Mass Extinction at the Cretaceous-Paleogene Boundary" in *Science* vol. 327 (2010) pp. 1214-1218
* Amir Siraj, Abraham Loeb, "Breakup of a long-period comet as the origin of the dinosaur extinction" in *Scientific Reports* vol. 11 no. 3803 (2021)

; De sequelis
* Matt Friedman, "Ecomorphological selectivity among marine teleost fishes during the end-Cretaceous extinction" in *PNAS* vol. 106 (2009) pp. 5218-5223
* Matt Friedman, "Explosive morphological diversification of spiny-finned teleost fishes in the aftermath of the end-Cretaceous extinction" in *Proceedings of the Royal Society B* (4 Februarii 2010)
* Mathias M. Pires, Brian D. Rankin, Daniele Silvestro, Tiago B. Quental, "Diversification dynamics of mammalian clades during the K–Pg mass extinction" in *Biology Letters* vol. 14 no. 9 (1 Septembris 2018)

## Nexus externi 
* Fuentes, Anthony J. et al. 2019. "Constructing a Timescale of Biotic Recovery across the Cretaceous–Paleogene Boundary, Corral Bluffs, Denver Basin, Colorado." *bioRxiv,* 15 Maii 2019.

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Categoria:Eventa geologica
Categoria:Exstinctiones maiores
Categoria:Terminus Cretaceus Palaeogenicus