'plate' and δέρμα (derma) 'skin') are vertebrate animals of the class Placodermi, an extinct group of prehistoric fish known from Paleozoic fossils during...

Length Estimation Suggests Much Smaller Sizes for Dunkleosteus terrelli (Placodermi: Arthrodira)". Diversity. 15 (3): 318. doi:10.3390/d15030318. ISSN 1424-2818...

rays) Subclass Holocephali (chimaeras and extinct relatives) Class †"Placodermi" (armoured fish, paraphyletic) Class †"Acanthodii" ("spiny sharks", sometimes...

and weigh 2.5 kg (5.5 lb). The largest fish of the now-extinct class Placodermi was the giant predatory Dunkleosteus. The largest and most well known...

three top-level groupings: Chondrichthyes, or the cartilaginous fish; Placodermi, an extinct grade of armored fish; and Teleostomi, which includes the...

"jointed neck") is an order of extinct armored, jawed fishes of the class Placodermi that flourished in the Devonian period before their sudden extinction...

fossil record that have ever been considered to be members of the class Placodermi. This list excludes purely vernacular terms. It includes all commonly...

all jawed vertebrates except the chondrichthyans and the extinct class Placodermi. Recent studies indicate that Osteichthyes evolved from placoderms like...

olfactory system than animals not in it. The only extinct classes shown are Placodermi and Acanthodii. Note that there are many other extinct chordate groups...

addition to these, there are two classes of extinct armoured fishes, Placodermi and Acanthodii, both paraphyletic. Other ways of classifying the vertebrates...

along with Brindabellaspis, form some of the most basal clades of the Placodermi, or Gnathostomata. They are more related to other placoderms and the more...

spiny shark ancestors. Subphylum Vertebrata └─Infraphylum Gnathostomata ├─Placodermi — extinct (armored gnathostomes) └Eugnathostomata (true jawed vertebrates)...

Like Stensioella heintzi, the Pseudopetalichthids' placement within Placodermi is suspect. However, due to a gross lack of whole, uncrushed, articulated...

virtually all jawless fish, save for lampreys and hagfish, as well as the Placodermi, a group of armoured fish that dominated much of the late Silurian, and...

†Cephalaspidomorphi Infraphylum Gnathostomata (jawed vertebrates) Class †"Placodermi" (Paleozoic armoured forms; paraphyletic in relation to all other gnathostomes)...

scraps were of a placoderm, and not a dinosaur. Denison, Robert (1978). Placodermi Volume 2 of Handbook of Paleoichthyology. Stuttgart New York: Gustav Fischer...

(Canada, Upper Devonian), and a cladistic analysis of the Eubrachythoraci (Placodermi, Arthrodira)". Zoological Journal of the Linnean Society. 159 (1): 195–222...

Press. pp. 369 (page 266). ISBN 9780801847790. Denison, Robert (1978). Placodermi Volume 2 of Handbook of Paleoichthyology. Stuttgart New York: Gustav Fischer...

small, scale-like tubercles. Stensioella is tentatively placed within Placodermi as being among the most basal of all placoderms, as from what can be discerned...

the lancelet, tunicate, and craniate clades are as reported. Note that Placodermi is now thought to be paraphyletic. Haikouella, extinct genus Haikouichthys...

Chordata Clade: Olfactores Subphylum: Vertebrata Groups included "Agnatha" †"Placodermi" †"Acanthodii" Chondrichthyes Osteichthyes Actinopterygii Sarcopterygii...

(Vertebrata, Placodermi) from the Devonian of the north-western part of the East European Platform. "The Phylogeny of the Antiarcha (Placodermi, Pisces),...

; Lu, J.; Zhu, M. (2022). "The pelvic morphology of Parayunnanolepis (Placodermi, Antiarcha) revealed by tomographic data". Vertebrata PalAsiatica. doi:10...

possesses these layers. Placoderms were extinct by the end of the Devonian. Placodermi is a paraphyletic group of the clade Gnathostomata, which includes all...

Quasipetalichthyidae. Zhu, M. "New information on Diandongpetalichthys (Placodermi: Petalichthyida)." Early vertebrates and related problems of evolutionary...

Length Estimation Suggests Much Smaller Sizes for Dunkleosteus terrelli (Placodermi: Arthrodira)". Diversity. 15 (3): 318. Bibcode:2023Diver..15..318E. doi:10...

Informal group: Ichthyopsida Huxley, 1863 Groups included "Agnatha" †"Placodermi" †"Acanthodii" Chondrichthyes Osteichthyes Actinopterygii Sarcopterygii...

agnathans. Denison, Robert (1978). Handbook of Paleoichthyology, Volume 2, Placodermi. New York: Gustav Fischer Verlage. p. 25. ISBN 9780895740274. Paleos Rhenanida...

Thunder Bay Limestone is a geologic formation in Michigan that preserves fossils dating back to the Middle Devonian and is the uppermost formation of the...

Miller, Robert Rush (January 1980). "Handbook of Paleoichthyology, 2. Placodermi". Palaeogeography, Palaeoclimatology, Palaeoecology. 31: 93–94. doi:10...