order Temnospondyli

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Definition
  1. Noun:
    • Order Temnospondyli: A taxonomic order of extinct amphibians that lived from the Carboniferous to the Cretaceous periods. They are characterized by vertebrae in which the pleurocentra and intercentra remain as separate, often ring-like, bony elements.
Usage
  • The term is used in scientific and paleontological contexts to classify and discuss this specific group of prehistoric amphibians.
  • : Fossils of the order Temnospondyli provide crucial evidence for understanding early tetrapod evolution.
  • : The study compared the skull morphology across several families within the order Temnospondyli.
Advanced Usage
  • In taxonomic hierarchy, "order Temnospondyli" is a formal rank below class Amphibia and above various families (e.g., Trematopidae, Metoposauridae).
  • : The phylogenetic analysis placed the new genus firmly within the order Temnospondyli.
Variants and Related Words
  • Temnospondyl (n): A member of the order Temnospondyli. Often used in the plural (temnospondyls).
    • Example: This site yielded the remains of a large, aquatic temnospondyl.
  • Temnospondylous (adj): Of or relating to the order Temnospondyli.
    • Example: The temnospondylous condition of the vertebrae is a key diagnostic feature.
Synonyms
  • Temnospondyls: A common synonym referring to the members of this order collectively.
  • Formerly: Suborder of Stegocephalia: This reflects the historical classification mentioned in the reference context, though modern taxonomy recognizes it as a distinct order.
Notes on Meaning
  • The reference context specifies "formerly a suborder of Stegocephalia." This highlights the historical and evolving nature of scientific classification. "Stegocephalia" is an older, broader term for early amphibians, within which Temnospondyli was once categorized as a suborder. In contemporary paleontology, Order Temnospondyli is typically treated as a distinct clade.
  • The defining anatomical feature is the structure of their vertebrae ("having vertebrae in which some elements remain separate"), specifically the separate pleurocentra and intercentra.
Noun
  1. formerly a suborder of Stegocephalia; large Carboniferous and Permian amphibians having vertebrae in which some elements remain separate

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