The role of bioturbation-driven substrate disturbance in the Mesozoic brachiopod decline
Clapham, Matthew; Manojlovic, Marko (2020), The role of bioturbation-driven substrate disturbance in the Mesozoic brachiopod decline, Dryad, Dataset, https://doi.org/10.7291/D1696V
Contains measurements and descriptive categorization of shell morphology, especially related to the pedicle foramen and beak, for Jurassic-Recent terebratulide and rhynchonellide species. These include:
Width of pedical foramen opening, as a proportion of shell length (foramen_width). Based on a single individual, either the holotype or a representative specimen.
Height of umbo (linear distance), as a proportion of shell length (umbo_height). Based on a single individual, either the holotype or a representative specimen.
Angle of umbo, measured relative to commissure in lateral view. An angle of 0 represents a straight umbo that is parallel to the commissure, while an angle of 90 degrees represents an erect/incurved umbo that is perpendicular to the commissure. Based on a single individual, either the holotype or a representative specimen.
Shell width/length (WL) and height/length (HL). Based on the mean of all measurements in the Paleobiology Database.
The file also notes whether the pedicle foramen is labiate, whether the beak is abraded (beak_weathering), and whether there is shell thickening, usually in the dorsal valve. Traits were assigned based on published descriptions and illustrations, and represent the typical condition for each species. In these columns, blank entries typically mean that the feature is not present, but some of the features vary among specimens or during ontogeny.
American Chemical Society, Award: 54675-ND8