tri·lo·bite
Tags: DEFINITIONS; TRILOBITES; ARTHROPODA; ARTHROPODA, Fossil; EXTINCT animals
Related Articles
- Crystal Eyes. Fortey, Richard // Natural History;Oct2000, Vol. 109 Issue 8, p68
Features information on the eyes of trilobites, an extinct species of arthropods. Details on the calcite eyes of the species; Genetic aspect of the species; Description of the eyes of the trilobite Phacops.
- An Extravagance of Species. Eldredge, Niles // Natural History;Jul80, Vol. 89 Issue 7, p46
Discusses the challenge posed by the diversity of fossil trilobites to traditional evolutionary theory. Extinct relative of crabs and shrimps; Evolutionary puzzles posed by trilobites, whose solutions demand changes in evolutionary theory; Examination of Devonian trilobites of the Southern...
- LATE DEVONIAN (FRASNIAN) ASTEROPYGINE TRILOBITES FROM THE FRASNES AREA, SOUTHERN BORDER OF DINANT SYNCLINORIUM, BELGIUM. Van Viersen, Allart P.; Bignon, Arnaud // Geologica Belgica;Sep2011, Vol. 14 Issue 3/4, p109
The Frasnian representatives of Asteropyginae in the Frasnes area (south Belgium) have long been relatively well-documented when compared to other trilobites in the Devonian of the Ardennes (Belgium, northern France). However, examination of the type material and new collecting by the authors...
- A new representative of the lichid genus Ohleum (Trilobita) from the Eifelian (Middle Devonian) of southern Belgium. TAGHON, Peter G.; BONINO, Enrico; MOTTEQUIN, Bernard // Geologica Belgica;Sep2012, Vol. 15 Issue 3, p120
Trilobites of the family Lichidae are relatively poorly diversified within the Eifelian mixed siliciclastic-carbonate succession of the southern margin of the Dinant Synclinorium (Belgium). Until now, they were only represented by species belonging to the genera Ceratarges and Eifliarges. The...
- Validity and composition of the Silurian trilobite genera Borealarges and Dicranogmus, with new species from the Canadian Arctic. Adrain, Jonathan M. // Canadian Journal of Earth Sciences;May2003, Vol. 40 Issue 5, p749
Focuses on a study which established the distinction between the lichid trilobite genera Borealarges and Dicranogmus. Background on trilobites; Opinion on the synonymy of both genera; Systematic paleontology;
- Phenomena, comment and notes. Trefil, James // Smithsonian;Jun89, Vol. 20 Issue 3, p34
Profiles paleontologist Peter Sheldon who studied trilobites. Education; Career background; Details of Sheldon's research on trilobites for his doctorate thesis; Sheldon's theory of the evolution of trilobites; Level of admiration with which colleagues regard Sheldon; Contributions of Sheldon's...
- Trilobite Tagmosis and Body Patterning from Morphological and Developmental Perspectives. Hughes, Nigel C. // Integrative & Comparative Biology;Feb2003, Vol. 43 Issue 1, p185
Highlights some features that may guide inferences into the developmental mechanisms by which the trilobite body plan was specified. Aspects of Trilobita which make them particularly appropriate candidates for consideration in the light of developmental genetics; Distribution of dorsal and...
- Taking the Pulse of the Cambrian Radiation. Lieberman, Bruce S. // Integrative & Comparative Biology;Feb2003, Vol. 43 Issue 1, p229
Focuses on how the analysis of trilobites using a phylogenetic framework has enhanced what is known about whether there was an early, hidden radiation preceding the apparent Cambrian radiation in the fossil record. Debate over the timing of the Cambrian radiation; Use of biogeographic patterns...
- Bearriverops, a new Lower Ordovician trilobite genus from the Great Basin, western USA, and classification of the family Dimeropygidae. Adrain, Jonathan M.; Westrop, Stephen R. // Canadian Journal of Earth Sciences;Mar2007, Vol. 44 Issue 3, p337
Bearriverops n. gen. is a distinctive clade of small, vaulted trilobites from the Lower Ordovician (Ibexian Series; Stairsian Stage) of Utah and Idaho. The genus includes at least seven new species known from silicified material of which five are well enough known to name: B. alsacharovi, B....
