superclass chelicerata
Học thuậtThân thiện
Spiders, scorpions, and horseshoe crabs all belong to the superclass Chelicerata.
Definition
Noun: - A major taxonomic group (superclass) within the phylum Arthropoda, comprising arthropods characterized by having chelicerae (pincer-like mouthparts) and a body divided into two main tagmata: the prosoma (cephalothorax) and the opisthosoma (abdomen). This group lacks antennae and mandibles.
Usage
- Scientific Classification: Used primarily in zoological and biological contexts to classify a specific lineage of arthropods.
Advanced Usage
- Phylogenetic Context: The term is used in evolutionary biology and systematics to discuss the relationships between different arthropod groups.
Variants and Related Words
- Chelicerate (noun): Any member of the superclass Chelicerata.
- Cheliceral (adjective): Pertaining to the chelicerae.
Synonyms
- Chelicerates (when used as a common name for the group members).
Different Meanings
- This term has a single, specific meaning in biological taxonomy. It does not have general or figurative meanings.
Notes
- The name "Chelicerata" is derived from the Greek words (claw) and (horn), referring to the characteristic claw-like mouthparts.
- While "superclass" is a taxonomic rank, "Chelicerata" is often used alone to refer to this group in both scientific and general contexts.
Spiders, scorpions, and horseshoe crabs all belong to the superclass Chelicerata.
Noun
- spiders; scorpions; horseshoe crabs