Results 261 to 270 of about 99,859 (391)

The paleontology of the Zorritos formation of the north Peruvian oil fields / by Edmund M. Spieker.

, 1922
Edmund M. Spieker
openalex   +2 more sources

The osteohistology of Orthosuchus stormbergi using synchrotron radiation microcomputed tomography

Journal of Anatomy, EarlyView.
The osteohistology of Orthosuchus stormbergi is described for the first time. The primary bone tissue was lamellar bone. It had relatively thick bone walls, possibly indicating an aquatic lifestyle. Orthosuchus was a small bodied adult reaching a maximum body mass of about 1.2 kg.
Bailey M. Weiss, Kathleen N. Dollman, Jonah N. Choiniere, Claire Browning, Jennifer Botha   +4 more
wiley   +1 more source

A new Early Jurassic dinosaur represents the earliest-diverging and oldest sauropodomorph of East Asia. [PDF]

Sci Rep
Wang YM, Zhang QN, Wang YC, Xu H, Chen J, Feng Z, Xu X, Wang T, You HL.   +8 more
europepmc   +1 more source

Paleontology and geology

, 1942
Benjamin F. Howell, Rudolf Ruedemann
openalex   +2 more sources

Osteohistological signal from the smallest known phytosaur femur reveals slow growth and new insights into the evolution of growth in Archosauria

Journal of Anatomy, EarlyView.
The paucity of small, skeletally immature individuals representing the earliest ontogenetic stages of extinct archosaurs complicates our understanding of the growth dynamics within and between species. The opportune finding of the smallest phytosaur femora reveals slow growth, a surprising signal considering that larger phytosaurs in North America have
Erika R. Goldsmith, Daniel E. Barta, Ben T. Kligman, Sterling J. Nesbitt, Adam D. Marsh, William G. Parker, Michelle R. Stocker   +6 more
wiley   +1 more source

Blue-stain fungus from the Jurassic provides new insights into early evolution and ecological interactions. [PDF]

Natl Sci Rev
Tian N, Wang Y, Li F, Jiang Z, Tan X.
europepmc   +1 more source

New early Eocene Perissodactyl faunas from the continental upper Ghazij formation of Balochistan, Pakistan [PDF]

, 2010
Gingerich, Philip D, Gunnell, Gregg F, Missiaen, Pieter   +2 more
core   +1 more source

Osteohistology of the unusually fast‐growing theropod dinosaur Ceratosaurus

Journal of Anatomy, EarlyView.
We report the histology of multiple elements attributed to four individuals of Ceratosaurus. We find that the histology and growth models corroborate previous reports of rapid tissue growth in the genus. Abstract Ceratosaurus is a large‐bodied non‐avian theropod dinosaur known from the Upper Jurassic Morrison Formation of North America and is ...
Riley Sombathy, Patrick M. O'Connor, Michael D. D'Emic   +2 more
wiley   +1 more source

Retraction Note: Lateral palatal foramina do not indicate baleen in fossil whales. [PDF]

Sci Rep
Peredo CM, Pyenson ND, Uhen MD.
europepmc   +1 more source

A new approach to determining pterosaur body mass and its implications for pterosaur flight [PDF]

, 2008
Witton, Mark P.
core   +1 more source