Results 81 to 90 of about 10,206 (272)

Revisió d’Orthopsis royoi Lambert, 1935 (Echinoidea) del Cretaci Inferior de Vallibona (els Ports, conca del Maestrat, NE de la península Ibèrica) [PDF]

open access: yes, 2015
Es completa la descripció d’Orthopsis royoi Lambert, 1935 i se’n dóna una diagnosi. Se n’amplia ladistribució estratigràfica i geogràfica. Es figura per primera vegada el sistema apical i el peristoma detopotips.
Forner i Valls, Enric   +2 more
core  

The Fossil Echinoidea of Cyrenaica [PDF]

open access: yesQuarterly Journal of the Geological Society of London, 1911
T he specimens were collected during the expedition of which the geological results have been recorded in the foregoing pages (572-615). The fossil Echinoidea collected in Cyrenaica during our journey include ten determinable species represented by over a hundred specimens.
openaire   +1 more source

Kuwae, Epi and Tongoa Islands: Transformations of a volcanic landscape in central Vanuatu

open access: yesArchaeology in Oceania, Volume 60, Issue 1, Page 42-62, April 2025.
ABSTRACT This paper presents a detailed overview of archaeological research undertaken on Epi and Tongoa, in central Vanuatu. These islands were previously connected to one another and respectively formed the western and eastern portions of Kuwae, one of the largest islands in the Vanuatu archipelago, until the catastrophic Tombuk volcanic eruption ...
ROBERT HENDERSON   +7 more
wiley   +1 more source

Catalogue of the type fossils stored in the Palaeontological Museum of "Sapienza" University of Rome. 3 [PDF]

open access: yes, 2015
This paper is a third contribution towards a catalogue of all types stored in the Palaeontological Museum of "Sapienza" University of ...
Manni, Riccardo Pier Celestino
core  

The Affinities of the Echinoidea [PDF]

open access: yesThe American Naturalist, 1909
THE recent discovery that the crinoids in their ontogeny increase the number of their anibulacral post-radial ossicles by the interpolation of numerous ossicles (in pairs) between the first two primitive brachials and the radial, forming what are known as "interpolated division series, " as well as by the addition of brachials in a linear series at the
openaire   +1 more source

Distribuição dos equinoides na Formação Jandaíra

open access: yesBrazilian Journal of Geology
Neste trabalho é observada a distribuição das espécies de equinoides "regulares" Goniopygus durandi, Rosadosoma riograndensis(Maury 1924), Phymosoma major(Coquand 1862), e equinoides "irregulares" como Petalobrissus setifensis (Cotteau 1866), P. cubensis
Josevânia de Oliveira   +2 more
doaj   +1 more source

Geochemical signatures and nanomechanical properties of echinoid tests from nearshore habitats of Florida: environmental and physiological controls on echinoid biomineralization [PDF]

open access: yesPeerJ
The mechanisms that regulate minor and trace element biomineralization in the echinoid skeleton can be primarily controlled biologically (i.e., by the organism and its vital effects) or by extrinsic environmental factors.
Przemysław Gorzelak   +4 more
doaj   +2 more sources

QUINODERMOS (ECHINODERMATA) DE LA COLECCIÓN DE REFERENCIA DE BENTOS COSTERO DE ECOSUR

open access: yesEcosistemas y Recursos Agropecuarios, 2014
La sección de equinodermos de la Colección de Referencia de Bentos Costero de El Colegio de la Frontera Sur (ECOSUR) contiene 924 organismos agrupados en cinco clases: Crinoidea (5), Asteroidea (18), Ophiuroidea (664), Echinoidea (184) y Holothuroidea ...
BR Trujillo-Luna, NE González-Vallejo
doaj   +1 more source

Keanekaragaman Echinodermata Di Pantai Basaan Satu Kecamatan Ratatotok Sulawesi Utara [PDF]

open access: yes, 2014
Keanekaragaman fauna banyak ditemukan di ekosistem pesisir. Salah satu Filum yang memiliki daya tarik tersendiri di lingkungan pesisir yaitu Echinodermata.
Budiman, C. C. (Chika)   +3 more
core   +2 more sources

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