Novaculodus billingsleyi
Hodnett & Elliott, 2018
Classification: Elasmobranchii Protacrodontidae
Reference of the original description
Carboniferous chondrichthyan assemblages from the Surprise Canyon and Watahomigi formations (latest Mississippian–Early Pennsylvanian) of the western Grand Canyon, Northern Arizona. Journal of Paleontology, 92(Supplement S77), 1–33
Carboniferous chondrichthyan assemblages from the Surprise Canyon and Watahomigi formations (latest Mississippian–Early Pennsylvanian) of the western Grand Canyon, Northern Arizona. Journal of Paleontology, 92(Supplement S77), 1–33
Description:
Citation: Novaculodus billingsleyi Hodnett & Elliott, 2018: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 08/2026
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Description
Original diagnosis after Hodnett & Elliott, 2018 [26883]: Small multicuspid heterodont protacrodont shark with laterally compressed dentition, teeth 1–1.5 mm long mesiodistally, 400 μm wide labiolingually, and ∼600 μm tall (Fig. 9.21–9.23 holotype MNA V11301). Tooth base shallow, aborally recurved or moderately flattened, and slightly extended lingually. Four to six nutrient foramina present in a single row on labiolingual margin of tooth base. Crown with prominent labiolingually compressed triangular median cusp, one to three laterally compressed lateral cusps with broad longitudinal crests present on each cusp.
Original diagnosis after Hodnett & Elliott, 2018 [26883]: Small multicuspid heterodont protacrodont shark with laterally compressed dentition, teeth 1–1.5 mm long mesiodistally, 400 μm wide labiolingually, and ∼600 μm tall (Fig. 9.21–9.23 holotype MNA V11301). Tooth base shallow, aborally recurved or moderately flattened, and slightly extended lingually. Four to six nutrient foramina present in a single row on labiolingual margin of tooth base. Crown with prominent labiolingually compressed triangular median cusp, one to three laterally compressed lateral cusps with broad longitudinal crests present on each cusp.
Remarks
shark-references Species-ID=15289;
type species of Novaculodus Hodnett & Elliott, 2018 [26883] by monotypy (Art. 68.3 ICZN);
shark-references Species-ID=15289;
type species of Novaculodus Hodnett & Elliott, 2018 [26883] by monotypy (Art. 68.3 ICZN);
References
Carboniferous chondrichthyan assemblages from the Surprise Canyon and Watahomigi formations (latest Mississippian–Early Pennsylvanian) of the western Grand Canyon, Northern Arizona. Journal of Paleontology, 92(Supplement S77), 1–33
DOI: 10.1017/jpa.2018.72
Carboniferous chondrichthyan assemblages from the Surprise Canyon and Watahomigi formations (latest Mississippian–Early Pennsylvanian) of the western Grand Canyon, Northern Arizona. Journal of Paleontology, 92(Supplement S77), 1–33
DOI: 10.1017/jpa.2018.72
