order conodontophorida
Học thuậtThân thiện
A paleontologist carefully examines a fossil of order Conodontophorida under bright light.
Definition
Noun 1. An extinct taxonomic order of primitive jawless vertebrates: This term refers to a formal scientific classification for a group of extinct, early vertebrates. Their precise evolutionary relationships and taxonomy are debated and not definitively settled.
Usage
- The term is used exclusively in scientific contexts, particularly in paleontology and evolutionary biology, to classify certain extinct organisms.
- It is a formal taxonomic rank (order) within biological classification systems.
Examples
- In scientific literature: "Fossil evidence suggests that includes some of the earliest known vertebrates."
- In a discussion: "The placement of conodont animals within has been revised multiple times as new fossils are discovered."
Advanced Usage
- The taxonomic uncertainty is a key aspect of this term. It is often mentioned alongside debates about whether these organisms should be classified within the phylum Chordata or as a separate phylum.
- The common name for the animals within this order is conodonts.
Variants and Related Words
- Conodont (noun): Refers to both the microscopic, tooth-like fossil elements and the extinct animal that possessed them. The animals are members of .
- Conodontophora (noun): An alternative, less common name for the same taxonomic group.
Synonyms
- Conodonts (when referring to the organisms themselves, not the formal order name).
A paleontologist carefully examines a fossil of order Conodontophorida under bright light.
Noun
- extinct order of primitive vertebrates; the precise taxonomy is not clear; in some classifications considered a separate phylum