Document of bibliographic reference 999

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

Distribution and biogeography of the recent Haliotidae (Gastropoda: Vetigastropoda) world-wide

Abstract

The distribution of all 56 abalone species is documented based on specimen records. The three models for the origin of the family (Pacific Rim, Indo-Pacific, Tethys) are evaluated. The area cladogram, which treats the distribution of the individual species as characters and the areas as taxa, is in general agreement with an unrooted phylogenetic tree of the taxa for which the geographic occurrence is superimposed. The basal node of the area cladogram is a fairly large polytomy uniting rather distant provinces such as the north Pacific, Australia, and Africa. A similar pattern emerges from the taxon cladogram. Accordingly, a very general Indo-Pacific origin emerges, best in agreement with the Indo-Pacific model for the origin of the family. The apparent discrepancy with the fossil record is discussed. Although the earliest fossils from the Upper Cretaceous have been found in the Carribean and in California, a major hiatus of on the order of 200 million years can easily account for the discrepancy between the earliest fossils and the biogeographical reconstruction, as well as for the large basal polytomy in the biogeographical analysis. All species are illustrated, including some distinct juvenile forms, and 30 photographs of live animals

Bibliographic citation

Geiger, D.L. (1999). Distribution and biogeography of the recent Haliotidae (Gastropoda: Vetigastropoda) world-wide. Boll. Malacologico XXXV: 57-120

Topic

Marine

Is peer reviewed

true

Access rights

open access

Is accessible for free

true