Palmatolepis-based revision of upper part of standard Late Devonian conodont zonation

1984/01/01 by Willi Ziegler, Charles A. Sandberg · 7 citations
Earth and Planetary Sciences · #Evolution and Paleontology Studies #Geological Studies and Exploration #Paleontology and Stratigraphy of Fossils

paper · doi:10.1130/spe196-p179

openalex publication_date 1984/01/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/15

Abstract

The standard Late Devonian conodont zonation between the top of the Upper marginiferaZone and the earliest Carboniferous Siphonodella sulcataZone is revised to replace the former velifer, styriacus, and costatuszonal groups, which were based primarily on genera other than Palmatolepis, and to eliminate a hiatus above the Upper costatusZone. The changes were enabled by a new phylogenetic model of Palmatolepis, by range extensions that bridge former gaps between the records of some Palmatolepistaxa, and by further taxonomic revisions of some double-rowed Bispathodustaxa. Basing the standard zonation on conodonts of primarily pelagic biofacies permits construction of parallel, alternative zonations for shallower water biofacies and estimation of phylogenetically more precise zonal timespans.

Cited by

• Multielement Conodont Species from the Louisiana Limestone (Upper Devonian) of West-Central Illinois and Northeastern Missouri, U.S.A.
• Willi Ziegler
• Disparity Changes in 370 Ma Devonian Fossils: The Signature of Ecological Dynamics?
• Frasnian conodonts at high palaeolatitude (Amazonas Basin, north Brazil)
• Terrestrial-marine teleconnections in the Devonian: links between the evolution of land plants, weathering processes, and marine anoxic events
• Population dynamics of the Late Devonian conodontAlternognathuscalibrated in days
• Alternognathus [wikipedia]