Pathologies of non-marine bivalve shells from the Late Triassic of Poland
Article first published online: 3 AUG 2009
© 2009 The Authors, Journal compilation © 2009 The Lethaia Foundation
Volume 43, Issue 3, pages 285–289, September 2010
How to Cite
GORZELAK, P., NIEDŹWIEDZKI, G. and SKAWINA, A. (2010), Pathologies of non-marine bivalve shells from the Late Triassic of Poland. Lethaia, 43: 285–289. doi: 10.1111/j.1502-3931.2009.00188.x
- Issue published online: 3 AUG 2010
- Article first published online: 3 AUG 2009
- manuscript received on 04/03/2009; manuscript accepted on 20/05/2009.
Gorzelak, P., Niedźwiedzki, G. & Skawina, A. 2010: Pathologies of non-marine bivalve shells from the Late Triassic of Poland. Lethaia, Vol. 43, pp. 285–289.
Shells of Late Triassic non-marine bivalves from Lisowice (Lipie Śląskie clay pit, southern Poland), which co-occur with remains of several vertebrate taxa (mammal-like reptiles, carnivorous dinosaurs, pterosaurs, temnospondyl amphibians, hybodont sharks, dipnoan and ganoid fish), bear evidence of pathologies. Distribution, dimension and shape of some of these injuries (radiate tooth marks) closely match the dental morphology of lungfish (here probably represented by the genus Ceratodus). Thus, we interpret these pathologies as evidence of unsuccessful predatory attack on bivalves by this fish. This interpretation is also consistent with modern examples of such behaviour among lungfish. The feasibility that other culprits caused other pathologies (shell scarring and wedges) on the bivalves analysed is also discussed. Discovery of these traces constitutes important evidence of predator–prey interaction, which provides ‘fingerprints’ of trophic structure within this Late Triassic freshwater ecosystem. □Freshwater bivalves, lungfish, pathologies, predation, Triassic.