Logania (fish) explained

Logania is a genus of jawless fish which lived during the Silurian and Early Devonian period.

Like other thelodonts, the body was covered in denticles, which in Logania were interlocking and stud-like.^[1]

Notes and References

1. Book: Moy-Thomas, James Allan. Palaeozoic Fishes: 2nd ed;. 2012. Springer. 978-1-4684-6465-8. 73.