Featured image: The newly reclassified beardog Angelarctocyon australis (Field Museum specimen no PM 423) had a much smaller jawbone (left) than that of the larger Amphicyon riggsi (right, Field Museum specimen no. P 12029), which lived around 22 million years later. Credit: copyright Susumu Tomiya, The Field Museum Papers (all Open Access): Whence the beardogs? Reappraisal of the Middle to LateContinue reading "Fossil Friday Roundup: October 14, 2016"
Fossil Friday Roundup: October 7, 2016
Featured image: Restoration of Bonacynodon schultzi in life by Jorge Blanco. From Martinelli et al. (2016) below. Papers (all Open Access): Two New Cynodonts (Therapsida) from the Middle-Early Late Triassic of Brazil and Comments on South American Probainognathians (PLOS ONE) Variable wing venation in Agathiphaga (Lepidoptera: Agathiphagidae) is key to understanding the evolution of basal moths (RSOS) NewContinue reading "Fossil Friday Roundup: October 7, 2016"
Fossil Friday Roundup: September, 30, 2016
Featured image: Drepanosaurus rips away tree bark with its massive claw and powerful arm. (Painting by Victor Leshyk) Papers (all Open Access): Extreme Modification of the Tetrapod Forelimb in a Triassic Diapsid Reptile (Current Biology) Protein sequences bound to mineral surfaces persist into deep time (eLife) Combined Use of Morphological and Molecular Tools to Resolve SpeciesContinue reading "Fossil Friday Roundup: September, 30, 2016"
Fossil Friday Roundup: September 23, 2016
Featured image: 3-D printing helped recover a lost cynodont holotype, as seen in the hands of the CT scan facility technician K. Jakata (ESI). From Benoit and Jasinoski (2016), listed below. Papers (all Open Access): Picking up the pieces: the digital reconstruction of a destroyed holotype from its serial section drawings (PalaeoE) A Comprehensive Study of CyanobacterialContinue reading "Fossil Friday Roundup: September 23, 2016"
Veggievore Fish of the Triassic
Fish have a bit of a boring reputation among many vertebrate paleontologists--too many bones, too hard to identify, not as charismatic as dinosaurs, etc., etc. But, this is entirely undeserved (and I say that as a dinosaur paleontologist, too)! The ins and outs of fish evolution are truly fascinating, bolstered by a phenomenal fossil record.Continue reading "Veggievore Fish of the Triassic"
Is a saber-tooth cat’s roar worse than its bite?
Maybe....if it's cold outside. When the climate changes, organisms change with it. Environmental stresses can impact an organism by limiting ideal living conditions and/or decreasing prey, or can even cause favorable conditions that allow a population to flourish. These changes can be observed over time, whether it is a decrease/increase in numbers in a population,Continue reading "Is a saber-tooth cat’s roar worse than its bite?"
Fossil Friday Roundup: September 16, 2016
Featured image: Crew from the Natural History Museum of Utah, BLM, Moab Museum, and GeoCorps working the Dystrophaeus Quarry. Image courtesy Brian Switek via Twitter. Follow along with Project Dystrophaeus on Twitter! Papers (all Open Access): Comparative cephalopod shell strength and the role of septum morphology on stress distribution (PeerJ) Measures of Relative Dentary StrengthContinue reading "Fossil Friday Roundup: September 16, 2016"
Fossil Friday Roundup: September 9, 2016
Featured image: A reconstruction of the Storr Lochs Monster, the most complete ichthyosaur from Scotland. Art by Todd Marshall. Papers (all Open Access): Big-headed marine crocodyliforms and why we must be cautious when using extant species as body length proxies for long-extinct relatives (PalaeoE) Fossil snake preserving three trophic levels and evidence for an ontogeneticContinue reading "Fossil Friday Roundup: September 9, 2016"
Fossil Friday Roundup: September 2, 2016
Featured image: A new pterosaur was the size of a housecat, published this week in Royal Society Open Science. Image courtesy Mark Witton. Papers (all Open Access): Osteology of the Late Triassic aetosaur Scutarx deltatylus (Archosauria: Pseudosuchia) (PeerJ) Cranial Morphology of the Carboniferous-Permian Tetrapod Brachydectes newberryi (Lepospondyli, Lysorophia): New Data from µCT (PLOS ONE) AContinue reading "Fossil Friday Roundup: September 2, 2016"
Fossil Friday Roundup: August 26, 2016
Featured image: Palaeobatrachus diluvianus (GOLDFUSS, 1831). Holotype (STIPB-Goldfuss-1343) deposited in Goldfuss Museum, Steinmann- Institut für Geologie, Mineralogie und Paläontologie, Rheinische Friedrich-Wilhelms Universität, Bonn, Germany. Photograph courtesy Steinmann-Institut. From Rocek (2016) below. Papers (all Open Access): Beetles with Orchid Pollinaria in Dominican and Mexican Amber (American Entomologist) The Fossil Record of Tadpoles (Fossil Imprint) The Hopping Dead: LateContinue reading "Fossil Friday Roundup: August 26, 2016"
