Rizosceras Hyatt 1884

Genus Rizosceras Hyatt, 1884 Type species Orthoceras indocile Barrande, 1866 from Kocorc, Bohemia, Czech Republic, Middle Silurian; by original designation. Diagnosis Compressed, rapidly enlarging, straight to faintly curved brevicones with hyponomic sinus and distinct, faintly rugose transverse surficial ornament; siphuncle ventrally positioned near conch margin; septal necks cyrtochoanitic; siphuncular segments cardioid in dorsoventral section. (Adopted from Sweet 1964b.)

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Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2025-03-03
DOI
https://doi.org/10.5281/zenodo.15150630
Primary Topic
Paleontology and Stratigraphy of Fossils
Type
article
Field-Weighted Citation Impact
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article

Rizosceras Hyatt 1884

Zenodo (CERN European Organization for Nuclear Research)
Paleontology and Stratigraphy of Fossils
article

Rizosceras Hyatt 1884

article en

Abstract

Genus Rizosceras Hyatt, 1884 Type species Orthoceras indocile Barrande, 1866 from Kocorc, Bohemia, Czech Republic, Middle Silurian; by original designation. Diagnosis Compressed, rapidly enlarging, straight to faintly curved brevicones with hyponomic sinus and distinct, faintly rugose transverse surficial ornament; siphuncle ventrally positioned near conch margin; septal necks cyrtochoanitic; siphuncular segments cardioid in dorsoventral section. (Adopted from Sweet 1964b.)

Zenodo (CERN European Organization for Nuclear Research)
Finnish Museum of Natural History (FI)
Life in Land
Openalex Percentile: Top 53%
Paleontology and Stratigraphy of Fossils
DOIOpen Access PDFOpenAlex
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Rizosceras Hyatt 1884 · Zenodo (CERN European Organization for Nuclear Research) (2025) | TGRS Research Map | TGRS