A new noncalcified dasycladalean alga from the silurian of Wisconsin
Links
- More information: Publisher Index Page (via DOI)
- Download citation as: RIS | Dublin Core
Abstract
Noncalcified thalli, consisting of a narrow main axis with numerous branched hairlike laterals in whorls and a subapical array of undivided clavate laterals, from the Silurian (Llandovery) Brandon Bridge Formation of southeastern Wisconsin, constitute the basis for a new genus and species of dasycladalean alga, Heterocladus waukeshaensis. A relationship within the family Triploporellaceae is indicated by the whorled arrangement of the laterals and the absence of gametophores on mature specimens. A compilation of occurrence data suggests that noncalcified dasyclads, as a whole, were more abundant and diverse during the Ordovician and Silurian than at any other time in their history. The heterocladous thallus architecture of this alga adds to a wide range of morphological variation documented among Ordovician and Silurian dasyclads, the sum of which indicates that Dasycladales underwent a significant evolutionary radiation during the early Paleozoic.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | A new noncalcified dasycladalean alga from the silurian of Wisconsin |
| Series title | Journal of Paleontology |
| DOI | 10.1666/0022-3360(2003)077<1152:ANNDAF>2.0.CO;2 |
| Volume | 77 |
| Issue | 6 |
| Year Published | 2003 |
| Language | English |
| Publisher | BioOne |
| Description | 7 p. |
| First page | 1152 |
| Last page | 1158 |
| Country | United States |
| State | Wisconsin |
| Google Analytic Metrics | Metrics page |