The morphology of Falcatus falcatus (St. John and Worthen), a Mississippian stethacanthid chondrichthyan from the Bear Gulch Limestone of Montana

R. Lund

1985

Article

Journal of Vertebrate Paleontology 5(1):1-19

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Taxa discussed in this work:

• Cladodontida
• Falcatus
• Falcatus falcatus
• Falcatus hamatus
• Falcatus proclivus
• Physonemus chesterensis
• Physonemus parvulus
• Stethacanthidae
• Stethacanthus altonensis
• Stethacanthus compressus
• Stethacanthus exilis
• Stethacanthus humilis
• Stethacanthus praecursor
• Stethacanthus productus
• Stethacanthus tumidus

Taxonomy:

• Stethacanthus tumidus belongs to Stethacanthus - Newberry (1889)
• Stethacanthus compressus belongs to Stethacanthus - Newberry (1897)
• Physonemus pandatus belongs to Physonemus - Eastman (1902)
• Stethacanthus erectus belongs to Stethacanthus - Eastman (1903)
• Stethacanthus humilis belongs to Stethacanthus - Hussakof (1913)
• Stethacanthus exilis belongs to Stethacanthus - Hussakof (1913)
• Stethacanthus praecursor belongs to Stethacanthus - Hussakof and Bryant (1918)
• Physonemus parvulus belongs to Stethacanthidae - Lund (1985)
• Physonemus chesterensis belongs to Stethacanthidae - Lund (1985)
• Cladodontida belongs to Elasmobranchii - Lund (1985)
• Falcatus falcatus belongs to Falcatus - Lund (1985)
• Falcatus hamatus belongs to Falcatus - Lund (1985)
• Falcatus proclivus belongs to Falcatus - Lund (1985)