Anthaspidellidae
Taxonomy
This page represents the following TreeOfLife-200M taxonomic path.[1]
- Kingdom: Animalia
- Phylum: Porifera
- Class: Anthaspidellidae
Overview
Anthaspidellidae is a sponge taxon within the phylum Porifera. In the fossil record, anthaspidellids are typically known from mineralized skeletal elements (e.g., spicules and/or sclerite-like structures) preserved as discrete fragments, which can limit identification to higher taxonomic levels in some assemblages.
Cambrian occurrence and identification limits
A Cambrian review focused on Argentine Precordillera material reports anthaspidellid sponges from Cambrian deposits in the La Laja Formation and also from a Cambrian-derived olistolith (“San Martín olistolith”) within the San Martín Formation/olistolith context in the Empozada Formation.
In the studied Argentine material, the anthaspidellids are represented by a single small rock sample containing multiple fragmentary skeletal pieces. Because the material is “very fragmental” with only “moderately poor preservation,” the sponges are identifiable only to family level (Anthaspidellidae), rather than confidently to genus or species.
The review further states biogeographic significance of the reported occurrences: at the time of publication, the Argentine record was described as the only known record from South America and as the fourth known occurrence overall of Cambrian anthaspidellids (with the caveat that identification is family-level only).
Visual Description
Museum and fossil-focused records associated with Anthaspidellidae typically present anthaspidellid fossils as mineralized skeletal fragments or partial skeletal components. Rather than showing complete, whole sponge bodies, the available images largely depict individual fossil elements or specimen fragments as preserved and cataloged in collections.
Gallery
References
- ↑ Dataset view for Animalia / Porifera / Anthaspidellidae constructed from imageomics/TreeOfLife-200M records under this taxonomic path. Hugging Face Datasets. https://huggingface.co/datasets/imageomics/TreeOfLife-200M.