Lingulellotretidae

Lingulellotretidae is an extinct family of brachiopods, with an extended pseudointerarea, including some soft-shelled representatives.^[1]

Lingulellotretidae Temporal range: Cambrian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Brachiopoda
Class:	Lingulata
Order:	Lingulida
Family:	†Lingulellotretidae
Genus:	†Lingulellotreta

The lingulellotretids are possibly close relatives of the Siphonotretids.^[2]

Soft tissue is occasionally known.^[3]

References

1. Balthasar, U. And Butterfield, N. J. 2009. Early Cambrian ‘soft-shelled’ brachiopods as possible stem-group phoronids. Acta Palaeontologica Polonica, 54, 307–314.
2. Valentine, James L.; Brock, Glenn A. (2003). "A new siphonotretid brachiopod from the Silurian of central-western New South Wales, Australia". Records of the Australian Museum. 55 (2): 231–244. doi:10.3853/j.0067-1975.55.2003.1378.
3. Zhang, Z., Han, J., Zhang, X., Liu, J., Guo, J., and Shu, D. (2007). Note on the gut preserved in the Lower Cambrian Lingulellotreta (Lingulata, Brachiopoda) from southern China. Acta Zool. 88, 65–70.