Correction to “Exceptionally Preserved Setae: A Possible Morphological Synapomorphy of Cambrian Lophotrochozoans”

Abstract

Liang, Y., Topper, T.P., Holmer, L.E., Hu, Y., Liu, F. and Zhang, Z., 2025. Exceptionally Preserved Setae: A Possible Morphological Synapomorphy of Cambrian Lophotrochozoans. Evolution & development, 27(1), p.e70001.

In the last sentence in the last paragraph of Materials and Methods (page 3), the text ‘All specimens included in this study are deposited at the Early Life Institute (ELI) at Northwest University, Xi'an, China, the Swedish Museum of Natural History (NRM), and the University of California, Riverside.’ was incorrect.

This should have read: ‘All specimens included in this study are deposited at the Early Life Institute (ELI) at Northwest University, Xi'an, China, the Royal Ontario Museum, Toronto, Canada (ROMIP), the Swedish Museum of Natural History (Br) and the University of California, Riverside, United States of America.’

In the caption of Figure 2 (page 5), the text ‘(A–C) Micromitra burgessensis attached to Pirania muricata spicules and micro-XRF elemental mapping results, P = Phosphorus, K = Potassium, Ca = Calcium, Si = Silicon, Fe = Iron; Specimen ROM63180.’ was incorrect.

This should have read: text ‘(A–C) Micromitra burgessensis attached to Pirania muricata spicules and micro-XRF elemental mapping results, P = Phosphorus, K = Potassium, Ca = Calcium, Si = Silicon, Fe = Iron; Specimen ROMIP63180.’

In the caption of Figure 3 (page 6), the text ‘(A) general view of Paterina zenobia; Specimen ROM63250. (B, C) Micro-XRF elemental mapping results showing the calcium phosphorus composition of the shell valve and calcium composition of marginal elongate setae, P = Phosphorus, Ca = Calcium, Fe = Iron. (D–J) Micromitra burgessensis; Specimen ROM63278.’ was incorrect. This should have read: ‘(A) general view of Paterina zenobia; Specimen ROMIP63185 (B, C) Micro-XRF elemental mapping results showing the calcium phosphorus composition of the shell valve and calcium composition of marginal elongate setae, P = Phosphorus, Ca = Calcium, Fe = Iron. (D–J) Micromitra burgessensis; Specimen ROMIP57603.’

In the caption of Figure 6 (page 9), the text ‘FIGURE 6 | Setal information from stem group brachiopods and other lophotrochozoan. (A–C) Inwardly pointing cones of Mickwitzia monilifera from lower Cambrian Mickwitzia sandstone, Mickwitzia occidens from the lower Cambrian Indian Springs Lagerstätte (Butler et al. 2015) and Mickwitzia muralensis from the lower Cambrian Mural Formation (Balthasar 2004). (D–F) Striation comparison of setigerous tubes and inwardly pointing cones of Mickwitzia occidens. (E) Close up of (D) with microvilli striations visible on canal wall. (F) Detail of (e) showing further details of individual microvilli. (G–I) Micrina etheridgei from the lower Cambrian Wilkawillina Limestone, Wilkawillina Gorge, Flinders Range, South Australia. (G) Detail of interior margin of mitral sclerite showing a penetrative striated setal column and a Micrina–mickwitziid column. (H, I) Detail of (g) showing striated interior canal of setal column (Holmer, Popov, and Streng 2008). (J–L) Shell structure of Tannuolina maroccana from Cambrian Series 2, Stage 3 at Tazemmourt, Morocco, fragmentary dextral mitral sclerite. (J) Oblique view of obcarinate side. (K) Detail of fracture through obcarinate side showing laminae and multiple primary tubes. (L) Detail of primary tube with internal striations (Skovsted et al. 2014).’ was incorrect.

This should have read: ‘FIGURE 6 | Setal information from stem group brachiopods and other lophotrochozoan. (A–C) Inwardly pointing cones of (A) Mickwitzia monilifera from lower Cambrian Mickwitzia sandstone (Specimen Br149707), (B) Mickwitzia occidens from the lower Cambrian Indian Springs Lagerstätte, USA (Specimen 017-10 from Butler et al. 2015) and (C) Mickwitzia muralensis from the lower Cambrian Mural Formation, Canada (Specimen X41344 from Balthasar 2004). (D–F) Striation comparison of setigerous tubes and inwardly pointing cones of Mickwitzia occidens, from the lower Cambrian Indian Springs Lagerstätte, USA (Specimen 039-07 from Butler et al. 2015). (E) Close up of (D) with microvilli striations visible on canal wall. (F) Detail of (E) showing further details of individual microvilli. (G–I) Micrina etheridgei from the lower Cambrian Wilkawillina Limestone, Wilkawillina Gorge, Flinders Ranges, South Australia, Specimen SAM P42035 from Holmer, Popov and Streng 2008). (G) Detail of interior margin of mitral sclerite showing a penetrative striated setal column and a Micrina–mickwitziid column. (H, I) Detail of (G) showing striated interior canal of setal column. (J–L) Shell structure of Tannuolina maroccana from Cambrian Series 2, Stage 3 at Tazemmourt, Morocco, fragmentary dextral mitral sclerite. Specimen NRMX 5279 from Skovsted et al. 2014. (J) Oblique view of obcarinate side. (K) Detail of fracture through obcarinate side showing laminae and multiple primary tubes. (L) Detail of primary tube with internal striations.

We apologize for these errors.