Brachycycloceras Miller, Dunbar & Condra 1933

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Autori principali: Korn, Dieter, Aubrechtová, Martina
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Pubblicazione: Zenodo 2026
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author Korn, Dieter
Aubrechtová, Martina
author_facet Korn, Dieter
Aubrechtová, Martina
contents <p><b><i>Brachycycloceras</i> (?) sp. D</b></p><p>Fig. 15D</p><p><b>Material examined</b></p><p>BELGIUM – <b>Liège</b> • 1 specimen; Chokier; <i>Homoceras beyrichianum</i> Zone (early Bashkirian); probably Beyrich 1845 Coll.; illustrated in Fig. 15D; MB.C.11126.2.</p><p><b>Description</b></p><p>Specimen MB.C.11126.2 is a small fragment of 16 mm length; it is partly covered with shell remains (Fig. 15D). It is an elongate tube with an apertural angle of only 7°. The specimen shows low annuli standing in distances of about 2 mm. The shell surface has an ornament with regularly spaced growth lines arranged in distances of 0.22– 0.15 mm.</p><p><b>Remarks</b></p><p>The small specimen cannot be connected with any of the other three specimens. Both the conch form, with its very small apical angle, and the sculpture, with very weakly developed annuli, indicate that the specimen may belong to the genus <i>Cryptocycloceras</i> Shimansky, 1968.</p>
format Recurso digital
id zenodo_https___doi_org_10_5281_zenodo_19497536
institution Zenodo
language
publishDate 2026
publisher Zenodo
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spellingShingle Brachycycloceras Miller, Dunbar & Condra 1933
Korn, Dieter
Aubrechtová, Martina
Biodiversity
Taxonomy
Animalia
Mollusca
Cephalopoda
Orthocerida
Brachycycloceratidae
Brachycycloceras
<p><b><i>Brachycycloceras</i> (?) sp. D</b></p><p>Fig. 15D</p><p><b>Material examined</b></p><p>BELGIUM – <b>Liège</b> • 1 specimen; Chokier; <i>Homoceras beyrichianum</i> Zone (early Bashkirian); probably Beyrich 1845 Coll.; illustrated in Fig. 15D; MB.C.11126.2.</p><p><b>Description</b></p><p>Specimen MB.C.11126.2 is a small fragment of 16 mm length; it is partly covered with shell remains (Fig. 15D). It is an elongate tube with an apertural angle of only 7°. The specimen shows low annuli standing in distances of about 2 mm. The shell surface has an ornament with regularly spaced growth lines arranged in distances of 0.22– 0.15 mm.</p><p><b>Remarks</b></p><p>The small specimen cannot be connected with any of the other three specimens. Both the conch form, with its very small apical angle, and the sculpture, with very weakly developed annuli, indicate that the specimen may belong to the genus <i>Cryptocycloceras</i> Shimansky, 1968.</p>
title Brachycycloceras Miller, Dunbar & Condra 1933
topic Biodiversity
Taxonomy
Animalia
Mollusca
Cephalopoda
Orthocerida
Brachycycloceratidae
Brachycycloceras
url https://doi.org/10.5281/zenodo.19497536