Dictyonellidae

Dictyonellidae is a family of extinct marine invertebrates belonging to the phylum Porifera, commonly known as sponges. These sponges are characterized by their distinctive skeletal structures, which are often reticulate or net-like. Fossilized remains of Dictyonellidae are found in marine sedimentary rocks, providing insights into ancient ocean environments and the evolution of sponges.

The precise taxonomic placement of Dictyonellidae has been subject to revision due to the nature of fossil preservation and the diversity of sponge forms. Historically, they have been classified within various groups, but current understanding often places them among the Demospongiae, one of the largest classes of sponges. Their skeletal elements, known as spicules, can vary in shape and arrangement, contributing to the identification of different species within the family.

Dictyonellid sponges inhabited a range of marine habitats during their existence. Their presence in fossil assemblages indicates their role in Paleozoic and Mesozoic ecosystems. The study of Dictyonellidae contributes to our understanding of the long history of sponge life and the biodiversity of ancient seas. Their unique skeletal morphology makes them valuable for paleontological research.