Asterozoans
Definition
A major subphylum or taxonomic grouping (Asterozoa) within the phylum Echinodermata, bringing together all echinoderms with a star-shaped body and unchanging radial symmetry; it includes two major extant classes: Asteroidea (true starfish) and Ophiuroidea (brittle stars or ophiuroids).
Bilingual Equivalents
- Asterozoans
- Asterozoa group
Grammatical & Source Details
| Inflection Type | Feminine plural noun, utilizing standard plural cases for major sub-phylum groupings in macro-biology. |
| Formation | Derived from scientific Latin 'Asterozoa', joining the classical Greek markers 'aster' (star) and 'zoon' (animal). |
| Spelling / Pronunciation | [as.te.ro.ˈzwa.re] |
| Source | Invertebrate Zoology & International Code of Zoological Nomenclature |
Contextual Usage Examples
RO: Grupul de asterozoare se diferențiază clar de crinoide prin stilul de viață liber, mobil, pe fundul mării și orientarea gurii în jos.
EN: The group of asterozoans clearly differentiates from crinoids by their free, mobile lifestyle on the seabed and downward mouth orientation.
RO: Analiza fosilelor relevă că primele asterozoare au apărut în perioada Ordovicianului, diversificându-se rapid.
EN: Fossil analysis reveals that the first asterozoans appeared during the Ordovician period, diversifying rapidly.
RO: În cadrul acestor asterozoare, clasa Ophiuroidea se remarcă prin brațele subțiri, net demarcate de discul central.
EN: Within these asterozoans, the Ophiuroidea class stands out with its thin arms, sharply demarcated from the central disc.
Idioms & Phrases
Morfologia de asterozoare / Asterozoan morphology
RO: Planul structural corporal comun caracterizat prin brațe de tip ambulacrar ce pornesc dintr-un disc central.
EN: The shared body structural plan characterized by ambulacral-type arms extending from a central disc.
Evoluția grupului de asterozoare / Asterozoa evolution
RO: Istoricul filogenetic al echinodermelor radiate din Paleozoic până la speciile marine contemporane.
EN: The phylogenetic history of radiate echinoderms from the Paleozoic to contemporary marine species.
Diversitatea de asterozoare / Asterozoan diversity
RO: Totalitatea sutelor de specii de stele de mare și ophiurizi răspândite în toate bazinele oceanice globale.
EN: The totality of hundreds of starfish and ophiuroid species distributed across all global ocean basins.
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