Paleontologists and placoderm specialists suspect that the scarcity of placoderms in the Silurian fossil record is due to placoderms' living in environments...

including all living cartilaginous and bony fish, as well as the extinct placoderms and acanthodians. In a break to the long tradition of grouping all fish...

other placoderms, may have also been among the first vertebrates to internalize egg fertilization, as seen in some modern sharks. Some other placoderms have...

that a branch of placoderms was most likely the ancestor of present-day gnathostomes. A 419-million-year-old fossil of a placoderm named Entelognathus...

hinged to the thoracic armour. This allowed placoderms to lift their heads, unlike ostracoderms. Placoderms were the first jawed fish; their jaws likely...

class Placodermi. Recent studies indicate that Osteichthyes evolved from placoderms like Entelognathus, while acanthodians are more closely related to modern...

connection between the teeth and the original dermal scales. The old placoderms did not have teeth at all, but had sharp bony plates in their mouth. Thus...

today. Bothriolepis is a genus placed within the placoderm order Antiarchi. The earliest antiarch placoderms first appeared in the Silurian period of the...

established names, and genera that are no longer considered placoderms. The modern descendants of placoderms, the bony and cartilaginous fishes, and their extinct...

nostrils on the underside of the head, similar to the unrelated antiarch placoderms. The shape of the skull has been described as "dolphin-like", with a domed...

time, leading the Devonian to be called the Age of Fishes. The armored placoderms began dominating almost every known aquatic environment. In the oceans...

non-cryptographic hash function mürmur, a New York City podcast Murmur (placoderm), a genus of placoderms Murmuration, a swarming behavior of starlings Mur Murs, documentary...

Rhenanida ("Rhine (fish)") is an order of scaly placoderms. Unlike most other placoderms, the rhenanids' armor was made up of a mosaic of unfused scales...

presented in 2025 is a list of new fossil taxa of jawless vertebrates, placoderms, cartilaginous fishes, bony fishes, and other fishes that were described...

of "maxillate placoderms" and acanthothoracids. The nuchal plate does not separate the two central plates unlike in most other placoderms. The head shield...

presented in 2024 is a list of new fossil taxa of jawless vertebrates, placoderms, cartilaginous fishes, bony fishes, and other fishes that were described...

cartilages like the skeletons of acanthodians, chondrichthyians and most placoderms. There are otherwise vast differences in fin, respiratory and circulatory...

(spine chests) is an extinct group of chimaera-like placoderms closely related to the rhenanid placoderms. Superficially, the acanthoracids resembled scaly...

Specimen length ranges from 8 inches (20 cm) to 12 inches (30 cm). As placoderms, they were members of the earliest known vertebrates to possess jaws,...

conodonts as index fossils. The Xiaoxiang fauna also includes galeaspids, placoderms and acanthodians. Guiyu was described by Chinese palaeontologist Zhu Min...

Placoderms of the Gravel Point Formation Genus Species Presence Material Notes Images Holonemiid South Point (Gravel Point), Little Traverse Bay, Charlevoix...

Placoderms Genus Species Presence Material Notes Images Bothriolepis B. canadensis An antiarch. Plourdosteus P. canadensis An arthrodire....

groups of placoderms. Arthrodire placoderms are notable for the movable joint between armor surrounding their heads and bodies. Like all placoderms, they...

presented in 2023 is a list of new fossil taxa of jawless vertebrates, placoderms, cartilaginous fishes, bony fishes, and other fishes that were described...

P. Plax; Michael J. Newman (2020). "New Early Devonian (late Emsian) placoderms from Belarus". Journal of Paleontology. 94 (4): 773–787. doi:10.1017/jpa...

tentatively placed within Placodermi as being among the most basal of all placoderms, as from what can be discerned from the only whole specimen found, the...

Placoderms reported from the Four Mile Dam Formation Genus Species Presence Material Notes Images ?Macropetalichthys ?M. sp. "A partial head shield (32M)"...

anus") is an order of heavily armored placoderms. The antiarchs form the second-most successful group of placoderms after the arthrodires in terms of numbers...

once thought to be the most primitive of the placoderms. Indeed, there has been the idea that the placoderms had a gradient, of sorts, from the least armored...

fishes described in 2019 is a list of new taxa of jawless vertebrates, placoderms, acanthodians, fossil cartilaginous fishes, bony fishes, and other fishes...