The discovery of new exoplanets makes us wonder each new exoplanet along its way to develop life as we know it on Earth. Our Evo-SETI Theory is a mathematical way to face this problem. We describe cladistics and evolution by virtue of a few statistical equations based on lognormal probability density functions (pdf) . We call -lognormal a lognormal pdf starting at instant (birth). Then, the lifetime of any living being becomes a suitable -lognormal . Next, our : each species created by evolution is a -lognormal whose peak lies on the number of living species. This exponential is the called "Geometric Brownian Motion" (GBM). Past mass extinctions were all-lows of this GBM. In addition, the Shannon Entropy (with a reversed sign) of each -lognormal is the measure of how evolved that species is, and we call it EvoEntropy. The "molecular clock" is re-interpreted as the EvoEntropy straight line in the time whenever the mean value is exactly the GBM exponential. We were also able to extend the Peak-Locus Theorem to any mean value other than the exponential. For example, we derive in this paper for the first time the EvoEntropy corresponding to the Markov-Korotayev (2007) "cubic" evolution: a curve of logarithmic increase.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5492140 | PMC |
| http://dx.doi.org/10.3390/life7020018 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Cranial osteology and neuroanatomy of the late Permian reptile and implications for early reptile evolution.
R Soc Open Sci
January 2025
Department of Biological Sciences, Idaho State University, Pocatello, Idaho, USA.
Millerettidae are a group of superficially lizard-like Permian stem reptiles originally hypothesized as relevant to the ancestry of the reptile crown group, and particularly to lepidosaurs and archosaurs. Since the advent of cladistics, millerettids have typically been considered to be more distant relatives of crown reptiles as the earliest-diverging parareptiles and therefore outside of 'Eureptilia'. Despite this cladistic consensus, some conspicuous features of millerettid anatomy invite reconsideration of their relationships.
View Article and Find Full Text PDFPhylogenetics and systematics of the subfamilies Cheirurinae and Deiphoninae (Trilobita).
Swiss J Palaeontol
December 2024
Institute of Earth Sciences, University of Lausanne, Géopolis, 1015 Lausanne, Switzerland.
Unlabelled: Cheiruridae is one of the most diverse families of trilobites known from the Ordovician with 453 species assigned. Within Cheiruridae eight subfamilies (Acanthoparyphinae, Cheirurinae, "Cyrtometopinae", Deiphoninae, Eccoptochilinae, Heliomerinae, Pilekiinae, and Sphaerexochinae) have historically been recognised. Insights about the evolution of the family and the relationships within and between subfamilies have been published.
View Article and Find Full Text PDF[genus]_[species]; Presenting phylogenies to facilitate synthesis.
Cladistics
December 2024
Entomologie, Staatliches Museum für Naturkunde Stuttgart, Rosenstein 1, Stuttgart, 70191, Germany.
Each published phylogeny is a potential contribution to the synthesis of the Tree of Life and countless downstream projects. Steps are needed for fully synthesizable science, but only a minority of studies achieve these. We here review the range of phylogenetic presentation and note aspects that hinder further analysis.
View Article and Find Full Text PDFBody size and evolutionary rate analyses reveal complex evolutionary history of Alvarezsauria.
Cladistics
December 2024
School of Life Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
Some of the smallest examples of dinosaurian body size are from alvarezsaurians, an enigmatic group of maniraptoran coelurosaurians with a peculiar combination of anatomical features unique among theropods. Despite the large number of alvarezsaurian species described worldwide and the increased understanding this has provided, the body-size macroevolution of alvarezsaurians has received little attention. Here we reconstruct and analyse directional trends of alvarezsaurian body-size evolution through an integrated analysis of body mass, ontogenetic age, and morphological rate data enabled by a comprehensively revised phylogeny.
View Article and Find Full Text PDFA review of fossil scorpion higher systematics.
PeerJ
December 2024
Department of Earth and Environmental Sciences, University of Manchester, Manchester, United Kingdom.
Article Synopsis
- Scorpions have a long evolutionary history with a complex classification system that has evolved over time, starting from early divisions based on leg structures in 1884.
- Various researchers contributed to the classification, utilizing different morphological features like mesosomal sclerites and tergites to categorize scorpions into distinct groups over the years.
- Currently, there are 43 known extinct families and 24 living families of scorpions, with some of the living families having fossil representatives, indicating a diverse lineage that goes back to the Triassic period.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!