In Sims (2012), several commas were mistakenly replaced with decimals in the text. These errors do not affect the analyses or results.

In the first paragraph of the Results section (page 1642), the 3rd sentence should correctly read:

“Specifically, the maximum increased from about 1,916 mm3 in the Devonian to about 150,796 mm3 in the Mississippian to about 868,588 mm3 in the Pennsylvanian. Intriguingly, this range remained relatively consistent in basal (nonangiosperm) spermatophytes for the remainder of the Phanerozoic; by the mid-Pennsylvanian, several Medullosan lineages (e.g., Pachytesta) had evolved ovules equivalent in volume to some of the largest extant gymnosperm seeds.”

On page 1643, the first complete sentence should correctly read:

“The largest modern angiosperm seeds (about 20,500,000 g) were three orders of magnitude larger than the largest modern gymnosperms (about 66,667 g), and the most minute angiosperm seeds (about 0.000034 g) were four orders of magnitude smaller than the smallest gymnosperms (about 0.63 g).”

On page 1643, the second and third sentences of first complete paragraph should correctly read:

“Within extant “gymnosperms,” Cycads had the largest seeds (e.g., Cycadaceae [n= 4 species, median = 16,606 g, mean = 25,776 g, SD = 28,808], Zamiaceae [n= 2 species, median = 9,623 g, mean = 9,623 g, SD = 11,848]). Although taxonomically depauperate relative to the group's past diversity, modern Ginkgoales (the basalmost lineage within the grade of “coniferophytes”) had much smaller seeds (e.g., Ginkgo biloba[n= 1 species, mass = 1,522 g]).”


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