Alienacanthus malkowskii (Jobbins et al 2024, Late Devonian) was originally considered a placoderm with a very long lower jaw. In the LRT Alienacanthus nests with sea robins like Prionotus and Satyrichthys, both of which also have an armored skull, sloping profile and a short cranium. Apparently the likely long rostrum (based on comparative anatomy) was lost during collection or taphonomy.

Prionotus evolans (Linneaus 1766; 40cm) is the extant striped sea robin, a scorpionfish that uses a set of finger-like flexible spines of its large pectoral fin to walk on the seafloor. With a long straight snout, it looks more like it's barracuda-like ancestors, but nests with its sister, the short-snouted flying gurnard, Dactylopterus (below) between the jack, Seriola zonata and the frogfish, Antennarius. Note the expanded palatine that mimicked the lacrimal and jugal missing in all sister taxa.

Satyrichthys rieffeli (originally Peristethus rieffeli Kaup 1859, 1873; Kawai T 2013) is an extant armored sea robin with massively developed external palatines extending far anterior to the mouth.