Paleontology and Evolutionary Science

A reevaluation of the basal turtle Indochelys spatulata from the Early–Middle Jurassic (Toarcian–Aalenian) of India, with descriptions of new material
Mark Young –– An important contribution to our understanding of basal turtles (non-perichelydian mesochelydians).
Cranial anatomy of Allosaurus jimmadseni, a new species from the lower part of the Morrison Formation (Upper Jurassic) of Western North America
Hans-Dieter Sues –– First modern anatomical description of an important taxon of Jurassic predatory dinosaurs.
Hole in One: an element reduction approach to modeling bone porosity in finite element analysis
Philip Cox –– I think this could become quite a widely used technique in FE modelling
Fossil fern rhizomes as a model system for exploring epiphyte community structure across geologic time: evidence from Patagonia
William DiMichele –– This article goes beyond morphological description and attempts to build a case for an interaction system centered around an extinct plant. By itself, such a system might be an oddity worthy of note. However, there is an increasing interest in documenting interaction systems in the past, and of building our understanding of these through time. For the most part these have focused on plant-animal interactions. Documenting multi-plant and plant-fungi interactions is less well studied. Plus the plant type described here (an osmudaceous rhizome) is relatively well represented in the fossil record and is present today, providing a basis for an extended ecological study.
Brittle stars looking like starfish: the first fossil record of the Astrophiuridae and a remarkable case of convergent evolution
Mark Young –– This is an important paper as brittle stars have a poor fossil record, and as the reviewers noted are often misinterpreted. It nicely shows an example of convergent evolution.
Scythes, sickles and other blades: defining the diversity of pectoral fin morphotypes in Pachycormiformes
Kenneth De Baets –– The paper discusses difference in fin morphology and other traits related to lifestyle in this enigmatic group of fishes. Their approach ranges from similar ratios to landmark analysis and also discussed the important aspects relevant for people working on other groups.
Beetle larvae with unusually large terminal ends and a fossil that beats them all (Scraptiidae, Coleoptera)
Joseph Gillespie –– Very important contribution to fossil beetle larvae
Osteology and phylogeny of Robustichthys luopingensis, the largest holostean fish in the Middle Triassic
Joseph Gillespie –– Important contribution to fish phylogenetics and evolution
Using GIS to examine biogeographic and macroevolutionary patterns in some late Paleozoic cephalopods from the North American Midcontinent Sea
Graciela Piñeiro –– This is an interesting paper that intends to document how much the changing climatic conditions (such as those related to the Late Carboniferous glaciations) have affected the geographic distribution and the extinction/speciation patterns of some cephalopods throughout the Pennsylvanian and Early Permian North American Midcontinent Sea by using Geographic Information Systems (GIS). The study shows ambiguous results probably influenced for the small sample size, particularly when applying statistical testing, demonstrating the relevance of the sample size in the achievement of reliable conclusions.
A prevalence of Arthropterygius (Ichthyosauria: Ophthalmosauridae) in the Late Jurassic—earliest Cretaceous of the Boreal Realm
Mark Young –– This paper provides a thorough description and review of Russian ophthalmosaurid ichthyosaurs. The hypotheses, descriptions and identifications within give a different interpretation of Upper Jurassc ichthyosaur evolution.
Paleontology and Evolutionary Science
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Section discussions

Idade e crescimento de Palaeoloxodon huaihoensis do Canal de Penghu, Taiwan: significado de sua distribuição etária com base em fósseis https://t.co/0mbe9FQW9X

Rodriguez et al. investigate the respiratory #organs of P. canaliculata by studying the lung of this species at the anatomical histological and ultrastructural levels @UNCUYO @ruhrunibochum Read the full @PeerJLife article https://t.co/37JbueyUjK #Aquaculture #Evolution https://t.co/KMUGG2pSTF

A #NewSpecies Meiogyne oligocarpa (#Annonaceae), named from Yunnan, China published in @PeerJLife https://t.co/hY0MYeSuTw #Biodiversity #MolecularBiology #PlantScience #Taxonomy https://t.co/vwLeoGXOcn

Lesões e interferência de muda em um trilobita do Cambriano (Furongiano) do Sul da China https://t.co/pgZmoEwfuw #trilobita #trilobite

A #NewSpecies of hump-backed #colobodontid from the early Middle Triassic of #Panzhou China is named in @PeerJLife article https://t.co/5c8VjI3XX2 #Aquaculture #Fisheries #FishScience #Evolution #Paleontology https://t.co/UM0ozF5grt

Richling and Proschwitz examine new exotic introductions to tropical greenhouses in #Sweden - Identification problems of travelling snail species Read the full @PeerJLife article https://t.co/TpIeieYsXc @uniofgothenburg #Gastropoda #Achatinellidae #Strobilopsidae https://t.co/8vAyrDQhSM

Important perspective piece by @Tseng_ZJ in @thePeerJ : comparative FEA studies with low sample size (<11) can lead to false positives (for biomechanical performance - feeding ecology correlations in mammalian skulls, but probably more broadly!). https://t.co/MLsxyesVnt

Extensive microbial diversity within the chicken gut microbiome revealed by metagenomics and culture [PeerJ] https://t.co/mk3u1PgYOY

KSL News Radio: "Radioactive dinosaur skull from Utah helped researchers make new discovery"
https://kslnewsradio.com/1920298/radioactive-dinosaur-allosaurus/

Salt Lake Tribune: "A ‘new’ dinosaur — the top predator of its time — goes on display at the Utah Museum of Natural History"
https://www.sltrib.com/news/2020/01/24/new-dinosaur-top/

New Dinosaur Alert! Just Look at This Marvelous Meat-Eating Allosaurus
https://www.popularmechanics.com/science/animals/a30647957/allosaurus-jimmadseni-dinosaur/

Carnivorous Dinosaur Discovered in the US Was a True Jurassic Nightmare
https://www.gizmodo.co.uk/2020/01/carnivorous-dinosaur-discovered-in-the-us-was-a-true-jurassic-nightmare/

Fearsome meat-eating dinosaur the size of a bus with serrated teeth and razor sharp claws is officially recognised as a new species 30 years after discovery
https://www.dailymail.co.uk/sciencetech/article-7924751/Fearsome-meat-eating-dinosaur-size-bus-razor-sharp-claws-recognised-new-species.html