Results 41 to 50 of about 2,442 (222)

A new Late Ordovician bubble-headed trilobite species from South West Wales and its implications for biostratigraphy [PDF]

Acta Palaeontologica Polonica
A new species of bubble-headed trilobite, Staurocephalus oliveae sp. nov., is described from 250 specimens collected from a recently discovered locality in the Sholeshook Limestone Formation (upper Katian, Upper Ordovician; Ashgill, Cautleyan Zone 1 ...
MANUS G. LEIDI, LUCY M.E. MCCOBB, PATRICK D. MCDERMOTT, ALAN W. OWEN   +3 more
doaj   +1 more source

Hirnantia sagittifera (Brachiopoda) and Mucronaspis mucronata s.l. (Trilobita) in the Upper Ordovician of the East Baltic: taxonomy and distribution [PDF]

Estonian Journal of Earth Sciences, 2012
The brachiopod Hirnantia sagittifera (M’Coy) and trilobite morphs of the genus Mucronaspis from the topmost Ordovician Porkuni Stage of the central East Baltic are described and compared with those from the Hirnantian Stage of other regions.
Linda Hints, Helje Pärnaste, Lilita-Ilga Gailite†   +2 more
doaj   +1 more source

Metacryphaeus rotundatus, um novo elemento da fauna de trilobites calmoniidae (phacopida), da formação Ponta Grossa (devoniano), bacia do Paraná, Brasil [PDF]

Geologia USP. Série Científica, 2008
Trilobites Calmoniidae (Delo, 1935) constituem o grupo de Phacopida mais abundante e diversificado do registro fóssil da Formação Ponta Grossa, Devoniano, Sub-bacia Apucarana. Embora conhecidos desde o início do século passado, o estudo dos trilobites da
Sabrina Pereira Soares, Marcello Guimarães Simões, Juliana de Moraes Leme   +2 more
doaj   +2 more sources

Shelly fossils from the lower Cambrian White Point Conglomerate, Kangaroo Island, South Australia [PDF]

Acta Palaeontologica Polonica, 2019
The lower Cambrian (Series 2) White Point Conglomerate (WPC) on Kangaroo Island, South Australia contains exotic clasts representing a diverse array of lithologies, including metamorphics, chert, sandstone, and abundant carbonates, notably archaeocyath ...
Marissa J. Betts, Thomas M. Claybourn, Glenn A. Brock, James B. Jago, Christian B. Skovsted, John R. Paterson   +5 more
doaj   +1 more source

Archegonus (Latibole) G. & R. Hahn 1969 (Trilobita) aus der crenestria-Zone (Unter-Karbon III) von Lauenthal (Ober-Harz) [PDF]

, 1971
Aus der crenistria-Zone (Subzone des Goniatites crenistria crenistria = cu III alpha3) von Lautenthal (Ober-Harz) werden zwei Arten von ArchegonusJ(Latibole) G.& R.HAHN, 1969 beschrieben und abgebildet: Archegonus (Latibole) laevicauda laevicauda (SARRES,
Brauckmann, Carsten
core   +2 more sources

(2833) Proposal to conserve the name Phalacroma (Dinophysales: Dinophyceae)

, 2021
TAXON, Volume 70, Issue 5, Page 1127-1128, October 2021.
Fernando Gómez
wiley   +1 more source

A new occurence of the genus Tonkinella in northern Spain and the Middle Cambrian intercontinental correlation [PDF]

, 2003
The genus Tonkinella is a typical polimeroid trilobite in lower Middle Cambrian rocks from Vietnam, Canada, U.S.A., India, Korea, Siberia, China and Argentina. It has recently been found in the Mediterranean region (Iberian Chain, northeastern Spain). In
Dies, Mª E., Gozalo, R., Gámez Vintaned, J.A., Mayoral, E., Muñiz, F.   +4 more
core   +4 more sources

The first hirnantian (Uppermost Ordovician) Odontopleurid trilobite from western Gondwana (Argentina) [PDF]

, 2014
An odontopleurid trilobite remain is described for the fi rst time from Hirnantian (uppermost Ordovician) rocks of Western Gondwana. Very rare material, represented by a single left librigena, comes from a new fossil locality of the Don Braulio Formation
Halpern, Karen, Meroi Arcerito, Facundo René, Rustán, Juan José   +2 more
core   +1 more source

Shifting spaces: Which disparity or dissimilarity measurement best summarize occupancy in multidimensional spaces?

Ecology and Evolution, Volume 10, Issue 14, Page 7261-7275, July 2020., 2020
Different measurements of multidimensional space occupancy can give different results and are affected by the multidimensional space properties and biological question. This paper provides a guideline of what different measurements are capturing and in which context they can be useful for answering biological questions.
Thomas Guillerme, Mark N. Puttick, Ariel E. Marcy, Vera Weisbecker   +3 more
wiley   +1 more source

Controls on gut phosphatisation : the trilobites from the Weeks Formation Lagerstätte (Cambrian; Utah) [PDF]

, 2012
Despite being internal organs, digestive structures are frequently preserved in Cambrian Lagerstätten. However, the reasons for their fossilisation and their biological implications remain to be thoroughly explored.
AA Öpik, AA Öpik, AE Klann, AP Lee, BDE Chatterton, BDE Chatterton, BE Felgenhauer, BO Turbeck, Carles Lalueza-Fox, Carlo Kier, CD Walcott, CHJ Hof, D Shu, DC García-Bellido, DC García-Bellido, DC García-Bellido, DEG Briggs, DEG Briggs, DEG Briggs, DEG Briggs, DL Bruton, DL Bruton, DM Martill, Enrico Bonino, F Graf, F Neues, FR Schram, G Thomas, G Thomas, GL Becker, GT Ushatinskaya, H Greven, HJ Harrington, J Gouranton, J Vannier, J Yager, JA Dunne, JD Corrêa Junior, JD Corrêa Junior, JH Carpenter, JM Green, JW Hagadorn, Jörg Habersetzer, LE Babcock, M Fanenbruck, M Ludwig, MA Beebe, Matthieu Carré, ME McNamara, MY Zhu, NJ Butterfield, P Greenway, P Jenkins, PA Allison, PA Jell, PR Wilby, PR Wilby, PR Wilby, R Lavallard, R Lerosey-Aubril, R Roer, RA Fortey, RA Robison, RS Sohal, Rudy Lerosey-Aubril, S Koenemann, S Koenemann, SA Filimonova, SP Hopkin, TA Hegna, Thomas A. Hegna, WH Fahrenbach, WH Fahrenbach   +72 more
core   +5 more sources