Results 21 to 30 of about 620 (178)
Re-evaluation of a soft crested Edmontosaurin, with implications for hadrosaurid life appearance and diversity. [PDF]
Anat Rec (Hoboken)Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Sharpe HS +4 more
europepmc +2 more sources
Skull morphology and histology indicate the presence of an unexpected buccal soft tissue structure in dinosaurs. [PDF]
J AnatA combined approach of osteology and histology was used to examine the cheek regions of dinosaurs. Strong evidence was found for a soft tissue in this region connecting the zygoma to the mandible, here named the ‘exoparia’. Abstract Unlike mammals, reptiles typically lack large muscles and ligaments that connect the zygoma to the mandible.
Sharpe HS +7 more
europepmc +2 more sources
Intraskeletal histovariability and skeletochronology in an ornithopod dinosaur from the Maestrazgo Basin (Teruel, Spain). [PDF]
J AnatAbstract Ornithopods are an extinct group of dinosaurs that were particularly abundant and diverse in the Cretaceous of the Iberian Peninsula, and whose abundance in the Maestrazgo Basin has allowed numerous taxa to be identified over the last decade. Many of these fossil remains are still taxonomically indeterminate and require a more detailed study ...
Maíllo J +4 more
europepmc +2 more sources
Carex ornithopoda subsp. ornithopoda
, 2023 34.1. Carex ornithopoda subsp. ornithopoda 35 (48). Carex pediformis C.A.Mey., Mém. Acad. Imp. Sci. St. - Pétersbourg Divers Savans 1: 219 (1831). 35.1. Carex pediformis var. pediformis 36 (49). Carex rhizina Blytt ex Lindblom, Bot. Not. 1839 (8): 98 (1839).— Carex rhizodes Blytt ex Boott, Ill. Gen.
Danylyk, Ivan M., Koopman, Jacob
openaire +2 more sources
New perspectives on body size and shape evolution in dinosaurs. [PDF]
Biol Rev Camb Philos SocABSTRACT Diversity in the body shapes and sizes of dinosaurs was foundational to their widespread success during the Mesozoic era. The ability to quantify body size and form reliably is therefore critical to the study of dinosaur biology and evolution.
Dempsey M +4 more
europepmc +2 more sources
The dentary of hadrosauroid dinosaurs: evolution through heterochrony
Palaeontology, Volume 66, Issue 5, September/October 2023., 2023 Abstract The near‐global distribution of hadrosaurid dinosaurs during the Cretaceous has been attributed to mastication, a behaviour commonly recognized as a mammalian adaptation. Its occurrence in a non‐mammalian lineage should be accompanied by the evolution of several morphological modifications associated with food acquisition and processing.
D. Fredrik K. Söderblom +3 more
wiley +1 more source
Acta Mycologica, 2014 The author has found Puccinia asteris-olpini on Aster alpinus - a species new to Poland, and five species of fungi on host new to Poland: Anthracoidea caricis on Carer pallescens, Entyloma doctylidis on Dactylis glomerata, Schizonella melanogramma on ...
Jan Kućmierz
doaj +1 more source
The Anatomical Record, Volume 306, Issue 7, Page 1646-1668, July 2023., 2023 Abstract In studying the skeletal allometry of any vertebrate, it is important to sample the ontogenetic extremes to ensure the accuracy of parameter estimation; this is particularly true for fossil taxa, where sampling of ontogenetic series is incomplete and sporadic.
Jordan C. Mallon +3 more
wiley +1 more source
Kromoskomska števila zastopnikov slovenske flore II
Acta Biologica Slovenica, 1975 Avtorja objavljata kromosomska števila, določena prvikrat na rast linskem materialu iz Slovenije, za naslednje vrste gen. Luzula (alpino-pilosa, campestris, forsteri, luzulina, luzuloides, multiflora, nivea, pilosa, sieberi, spicata, sudetica, sylvatica)
Blanka Druškovič, Franc Sušnik
doaj +1 more source