Aegoceras
Definition
An extinct genus of ammonoid cephalopods within the order Ammonitida and family Liparoceratidae, which thrived during the Early Jurassic epoch (predominantly in the epicontinental seas covering modern Western Europe). The shells of these ammonites are evolute, characterized by widely open whorls, rounded whorl sections, and prominent, well-spaced transverse ribs, holding significant stratigraphical value as index fossils for mapping geological strata.
Bilingual Equivalents
- Aegoceras
- Jurassic ammonite genus
Grammatical & Source Details
| Inflection Type | Proper generic noun, treated as singular and grammatically invariable across morphological descriptions. |
| Formation | Taxonomic hybrid combining Ancient Greek 'aix' (goat) and 'keras' (horn), literally translating to goat's horn in reference to the shell's ribbed ridges. |
| Spelling / Pronunciation | /ˌiːˈɡɒsərəs/ |
| Source | Treatise on Invertebrate Paleontology and Ammonoidea Nomenclature |
Contextual Usage Examples
RO: O cochilie fosilizată de Aegoceras a fost extrasă din straturile de calcar de pe coasta muntoasă din Dorset.
EN: A fossilized shell of Aegoceras was extracted from the limestone strata on the mountainous coast of Dorset.
RO: Paleontologul a explicat că trăsătura principală la Aegoceras o reprezintă coastele transversale rigide și foarte distanțate.
EN: The paleontologist explained that the main feature of Aegoceras is represented by the rigid and widely spaced transverse ribs.
RO: Morfologia genului Aegoceras indică o adaptare la mediile marine de mică adâncime din perioada Pliensbachianului.
EN: The morphology of the genus Aegoceras indicates an adaptation to shallow marine environments during the Pliensbachian stage.
Idioms & Phrases
Fosilă de ghidaj Aegoceras / Aegoceras index fossil
RO: Resturi organice utilizate de geologi pentru a identifica și corela cu precizie intervale de timp specifice din Jurasic.
EN: Organic remains used by geologists to accurately identify and correlate specific time intervals from the Jurassic period.
Cochilie evolută de Aegoceras / Evolute Aegoceras shell
RO: Structură calcaroasă spiralată în care toate spirele anterioare rămân complet vizibile din exterior, fără a fi acoperite de cele noi.
EN: A coiled limestone structure where all previous whorls remain completely visible from the outside, without being covered by new ones.
Subgenul Aegoceras (Beaniceras) / Aegoceras (Beaniceras) subgenus
RO: Clasificare taxonomică secundară ce reunește forme de amoniți de dimensiuni mai mici, cu secțiuni pronunțat globuloase.
EN: A secondary taxonomic classification gathering smaller ammonite forms with distinctly globose whorl sections.
Latest Contextual News
No recent news found for this topic.