A Piranha-like pycnodontiform fish from the Late Jurassic

Journal article


Publication Details

Author(s): Kölbl-Ebert M, Ebert M, Bellwood DR, Schulbert C
Journal: Current Biology
Publisher: Cell Press
Publication year: 2018
Volume: 28
Pages range: 1-6
ISSN: 0960-9822


Abstract

Pycnodontiformes are an extinct order of ray-finned fishes from the Triassic to Eocene [1, 2], with a characteristic crushing dentition reflecting a highly specialized diet [3]. However, our discovery of a new pycnodontiform from the Late Jurassic (ca. 152 Ma) Plattenkalk deposits of the Solnhofen Archipelago revealed long, pointed teeth along the vomer and triangular teeth with cutting edges along the prearticulars. This is the earliest evidence of specialized flesh cutting in a ray-finned fish. The dentition pattern, tooth shape, jaw morphology, and mechanics are all indicative of a feeding apparatus suitable for slicing flesh or fins, thus pioneering a new ecological niche. Evidence suggests that it may have exploited aggressive mimicry in a striking parallel to the feeding patterns of modern piranha. Remarkably, fossil fishes recovered from the same deposits as the new pycnodontiform show injuries to fins and fin bases. As a marine piranha-like fish contemporary with dinosaurs, it is the oldest known flesh-eating actinopterygian, revealing remarkable convergent evolution with modern piranhas. Kölbl-Ebert et al. describe a new pycnodontiform fish, Piranhamesodon pinnatomus, from the Jurassic. It has specialized morphological features for cutting flesh, including piranha-like teeth. As a marine fish contemporary with dinosaurs, it is the oldest known flesh-eating ray-finned fish, exhibiting remarkable convergent evolution with piranhas.


FAU Authors / FAU Editors

Schulbert, Christian
Lehrstuhl für Paläoumwelt


External institutions with authors

James Cook University


How to cite

APA:
Kölbl-Ebert, M., Ebert, M., Bellwood, D.R., & Schulbert, C. (2018). A Piranha-like pycnodontiform fish from the Late Jurassic. Current Biology, 28, 1-6. https://dx.doi.org/10.1016/j.cub.2018.09.013

MLA:
Kölbl-Ebert, Martina, et al. "A Piranha-like pycnodontiform fish from the Late Jurassic." Current Biology 28 (2018): 1-6.

BibTeX: 

Last updated on 2019-04-09 at 14:53