Pedunculotheca

Pedunculotheca; Temporal range: Chengjiang PreЄ Є O S D C P T J K Pg N ↓
Scientific classification
Kingdom:	Animalia
Clade:	Lophophorata
Clade:	Brachiozoa
Class:	†Hyolitha
Order:	†Orthothecida
Genus:	†Pedunculotheca
Species:	†P. diania
Binomial name
	Pedunculotheca diania; Sun, Zhao & Zhu 2018[1]

Pedunculotheca is a genus of orthothecid hyolith known from the Chengjiang biota of China, notable for its possession of a pedunculate attachment structure likened to the brachiopod pedicle.^[1]

On account of this pedicle and its flattened larval shell, it is reconstructed as the earliest diverging hyolith, and a model for the ancestral morphology of this lineage of stem-group brachiopods.^[1]

References

1 2 3 Sun, Haijing; Smith, Martin R.; Zeng, Han; Zhao, Fangchen; Li, Guoxiang; Zhu, Maoyan (2018). "Hyoliths with pedicles illuminate the origin of the brachiopod body plan". Proceedings of the Royal Society B: Biological Sciences. 285 (1887): 20181780. doi:10.1098/rspb.2018.1780.

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[illuminate-1] 1 2 3 Sun, Haijing; Smith, Martin R.; Zeng, Han; Zhao, Fangchen; Li, Guoxiang; Zhu, Maoyan (2018). "Hyoliths with pedicles illuminate the origin of the brachiopod body plan". Proceedings of the Royal Society B: Biological Sciences. 285 (1887): 20181780. doi:10.1098/rspb.2018.1780.