3D models related to the publication: Phylogenetic implications of the systematic reassessment of Xenacanthiformes and 'Ctenacanthiformes' (Chondrichthyes) neurocrania from the Carboniferous-Permian Autun Basin (France)

Vincent Luccisano; Mizuki Rambert-Natsuaki; Gilles Cuny; Romain Amiot; Jean-Marc Pouillon; Alan Pradel

doi:10.18563/journal.m3.155

3D models related to the publication: Phylogenetic implications of the systematic reassessment of Xenacanthiformes and 'Ctenacanthiformes' (Chondrichthyes) neurocrania from the Carboniferous-Permian Autun Basin (France)

MorphoMuseuM ◽

10.18563/journal.m3.155 ◽

2021 ◽

Vol 7 (4) ◽

pp. e155

Author(s):

Vincent Luccisano ◽

Mizuki Rambert-Natsuaki ◽

Gilles Cuny ◽

Romain Amiot ◽

Jean-Marc Pouillon ◽

...

Keyword(s):

3D Models ◽

Phylogenetic Implications

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Architecture of Radiolitid Rudist (Mollusca) Shell-Wall Structures and its Phylogenetic Implications

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100117054 ◽

1975 ◽

Vol 33 ◽

pp. 686-687

Author(s):

David H. Sturm ◽

Bob F. Perkins

Keyword(s):

Phylogenetic Relationships ◽

Outer Wall ◽

Shell Microstructure ◽

Shell Wall ◽

Wall Structures ◽

Phylogenetic Implications ◽

Cellular Wall ◽

Superfamily Analysis ◽

Central Texas

Each of the seven families of rudists (Mollusca, Bivalvia, Hippuritacea) is characterized by distinctive shell-wall architectures which reflect phylogenetic relationships within the superfamily. Analysis of the complex, calcareous, cellular wall of the attached valve of the radiolite rudist Eoradiolites davidsoni (Hill) from the Comanche Cretaceous of Central Texas indicates that its wall architecture is an elaboration of the simpler monopleurid rudist wall and supports possible radiolite-monopleurid relationships.Several well-preserved specimens of E. davidsoni were sectioned, polished, etched, and carbon and gold coated for SEM examination. Maximum shell microstructure detail was displayed by etching with a 0.7% HC1 solution from 80 to 100 seconds.The shell of E. davidsoni comprises a large, thick-walled, conical, attached valve (AV) and a small, very thin, operculate, free valve (FV) (Fig. 1a). The AV shell is two-layered with a thin inner wall, in which original structures are usually obliterated by recrystallization, and a thick, cellular, outer wall.

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THE GENESIS OF TOOLS FOR TEACHING PUPILS TO DEVELOP FLOWCHARTS

Informatics in school ◽

10.32517/2221-1993-2020-19-1-11-15 ◽

2020 ◽

pp. 11-15

Author(s):

A. A. Zubrilin ◽

M. N. Makarov

Keyword(s):

Historical Perspective ◽

3D Models ◽

Computer Applications ◽

Internet Services

The historical perspective provides an overview of how to study flowcharts in a school informatics course. Computer applications and Internet services are considered that automate the development of flowcharts. It is shown how 3D technologies can help an informatics teacher in preparing 3D models for the study of flowcharts.

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