6533b836fe1ef96bd12a08b2
RESEARCH PRODUCT
Ammonoid morphological signal versus sea-level changes
Didier MarchandA. BonnotPascal Neigesubject
AmmonitePaleontologylanguageGeologyTaxonomy (biology)BiologySea levellanguage.human_languageMarine transgressiondescription
The morphological diversity, considered as a biological signal, of a series of four Upper Callovian (Middle Jurassic) ammonite populations of Côte-d’Or (France) is quantified. These populations fall within two third-order sequences of a second-order transgression. A sampling method that adheres as closely as possible to the morphological characteristics of the populations is established. It is valuable in that it eliminates the subjectivity related to taxonomy to allow more objective comparisons between the biological signal (shell morphology) and the physical signal (eustasy).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-03-01 | Geological Magazine |