Ozarcus mapesae
Pradel, Maisey, Tafforeau, Mapes & Mallatt, 2014
Classification: Holocephali Symmoriiformes Falcatidae
Reference of the original description
A Palaeozoic shark with osteichthyan-like branchial arches. Nature, 509, 608–611
A Palaeozoic shark with osteichthyan-like branchial arches. Nature, 509, 608–611
Description:
Citation: Ozarcus mapesae Pradel, Maisey, Tafforeau, Mapes & Mallatt, 2014: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 09/2026
Description
Original diagnosis after Pradel, Maisey, Tafforeau, Mapes & Mallatt, 2014 [20474]: Falcatidae possessing small cladodont, pentacuspid and symmetrical teeth; ten upper and lower tooth families; palatoquadrate lacks a continuous posterior quadrate margin; no dermal denticles covering the top of the head; no ‘spine–brush’ complex; no laterally extended supraorbital shelf; laterally extended antorbital process that overlies a suborbital process possessing a series of four ridges and grooves for the articulation with the palatoquadrate (SupplementaryNotes and Extended Data Fig. 2).
Original diagnosis after Pradel, Maisey, Tafforeau, Mapes & Mallatt, 2014 [20474]: Falcatidae possessing small cladodont, pentacuspid and symmetrical teeth; ten upper and lower tooth families; palatoquadrate lacks a continuous posterior quadrate margin; no dermal denticles covering the top of the head; no ‘spine–brush’ complex; no laterally extended supraorbital shelf; laterally extended antorbital process that overlies a suborbital process possessing a series of four ridges and grooves for the articulation with the palatoquadrate (SupplementaryNotes and Extended Data Fig. 2).
References
Vertebrate assemblage and depositional environment of the Fayetteville Shale (Upper Mississippian, middle Chesterian). Geobios, 94, in press
DOI: 10.1016/j.geobios.2025.11.002
Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, 50(2), 271–284
DOI: 10.1017/pab.2024.1
The Palaeozoic assembly of the holocephalan body plan far preceded post-Cretaceous radiations into the ocean depths. Proceedings of the Royal Society B-Biological Sciences, 291(2033), Article 20241824
DOI: 10.1098/rspb.2024.1824
A Palaeozoic shark with osteichthyan-like branchial arches. Nature, 509, 608–611
DOI: 10.1038/nature13195
Vertebrate assemblage and depositional environment of the Fayetteville Shale (Upper Mississippian, middle Chesterian). Geobios, 94, in press
DOI: 10.1016/j.geobios.2025.11.002
Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, 50(2), 271–284
DOI: 10.1017/pab.2024.1

The Palaeozoic assembly of the holocephalan body plan far preceded post-Cretaceous radiations into the ocean depths. Proceedings of the Royal Society B-Biological Sciences, 291(2033), Article 20241824
DOI: 10.1098/rspb.2024.1824

A Palaeozoic shark with osteichthyan-like branchial arches. Nature, 509, 608–611
DOI: 10.1038/nature13195








