Sea lilies in spring: Crinoid diversification during the Early Ordovician - Archive ouverte HAL
Article Dans Une Revue Paleontological Journal / Paleontologicheskii Zhurnal Année : 2021

Sea lilies in spring: Crinoid diversification during the Early Ordovician

Thomas E Guensburg
  • Fonction : Auteur
  • PersonId : 1117064
James Sprinkle
  • Fonction : Auteur
Rich Mooi
  • Fonction : Auteur
  • PersonId : 857067
Forest Gahn
  • Fonction : Auteur
  • PersonId : 1117065

Résumé

The many Early Ordovician crinoid discoveries over the past 30 years signal a largely undocumented crinoid radiation totalling a more than five-fold increase in diversity, an important event in crinoid history. Camerate, cladid, and disparid clades had emerged by the Late Tremadocian Series, early during this time. These finds provide data for character analysis in phylogenetic reconstructions, particularly those aimed at identifying early branching within the crinoid tree. Early Ordovician crinoids comprised among the earliest-known benthic invertebrates to exploit food resources high above the substrate. Significantly, they were also among the largest known faunal elements during this time. A tentative listing of Early Ordovician crinoids and their distributions is provided; this compendium is subdivided into time slices with Laurentian and global stratigraphic units.
Fichier principal
Vignette du fichier
Sea lilies MS (HAL).pdf (186.69 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03433589 , version 1 (17-11-2021)

Identifiants

Citer

Thomas E Guensburg, James Sprinkle, Rich Mooi, Forest Gahn, Bertrand Lefebvre. Sea lilies in spring: Crinoid diversification during the Early Ordovician. Paleontological Journal / Paleontologicheskii Zhurnal, 2021, 55, pp.985-992. ⟨10.1134/S0031030121090045⟩. ⟨hal-03433589⟩
39 Consultations
148 Téléchargements

Altmetric

Partager

More