Thylacocercus
Temporal range: 513–501 Ma Middle Cambrian
Scientific classification
Kingdom:
Superphylum:
Phylum:
Order:
Family:
Genus:
Thylacocercus

Morris "et al.", 2015
Species:
T. ignota
Binomial name
Thylacocercus ignota
Morris "et al.", 2015

Thylacocercus is a genus of extinct animal close relative to basal echinoderms, which was found in the Wheeler Shale[1], in the middle Cambrian strata. The genus have one species: Thylacocercus ignota. This is the latest vetulocystid known.

References

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  1. ^ "Rare primitive deuterostomes from the Cambrian (Series 3) of Utah". Journal of Paleontology. 1 (4): 1–6. 2015. doi:10.1017/jpa.2015.40. {{cite journal}}: Unknown parameter |authors= ignored (help)

Prescov/sandbox
Temporal range: Neoproterozoic - Cenozoic600–1.8 Ma
Scientific classification
Kingdom:
Phylum:
Problematica

Andrews, 1970
Taxa

see text

Problematica is a fossil taxon of simple animals, commonly called a phylum, which groups taxa with uncertain phylogenetic placement.

Taxa

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With 278 taxa.