Bradyodonti - Wikipedia
WEBBradyodonti is an extinct order of cartilaginous fishes (class Chondrichthyes) that lived in the Paleozoic Era. They first appeared toward the end of the Devonian Period, were present through the Carboniferous Period, and became extinct by the end of the Permian Period.
Psammodontiformes - Wikipedia
WEBPsammodontiformes are an order of extinct holocephalans (sometimes referred to as bradyodonts) [ 1] known from the Carboniferous and Permian periods. [ 2] The order is named for the type genus, Psammodus, and all members are believed to have been durophagous benthic carnivores. [ 3]
Elasmobranchs and Their Extinct Relatives: Diversity, Relationships ...
WEBJan 1, 2015 · Therefore, euchondrocephalans are in fact the total-group holocephalans. Many of these stem holocephalans have also been long referred to as “bradyodonts,” because of their supposedly slow tooth replacement, which is considered as foreshadowing the large tooth plates of chimaeroids.
New information on the evolution of the bradyodont …
WEBJan 1, 1977 · The class Chondrichthyes has been divided into two sub-classes, the Bradyodonti (Woodward, 1921), or Holocephali, and Elasmo-. branchii. Bradyodonty describes acondition of slowness of tooth ...
Molar (tooth) - Wikipedia
WEBThe molars or molar teeth are large, flat teeth at the back of the mouth. They are more developed in mammals. They are used primarily to grind food during chewing. The name molar derives from Latin, molaris dens, meaning …
Enzymes of the Ornithine-Urea Cycle in the Chimaera - Nature
WEBThe chimaeras are the only survivors of a large and diverse Palaeozoic group, the bradyodonts 1. The bradyodonts and elasmobranchs appear in the late Devonian as fossils of two apparently...
bradyodonts - Wiktionary, the free dictionary
WEBbradyodonts. plural of bradyodont. Categories: English non-lemma forms.
Cochliodonts and chimaeroids: Arthur Smith Woodward and the ...
WEBOct 14, 2015 · Defined on the possession of dentitions with very slow growth rates, only seven or eight successional teeth produced throughout the lifetime of the fish, and retention rather than shedding of earlier teeth, primarily by fusion to later ones, the bradyodonts embraced petalodonts, psammodonts, copodonts and cochliodonts.
The first Devonian holocephalian tooth from Poland
WEBJul 1, 2004 · A recently found "bradyodont" holocephalian tooth from bituminous shales of the Kowala Quarry, south−western Holy Cross Mountains, Poland, dated as the middle Famennian Palmatolepis trachytera...
New information on the evolution of the Bradyodont …
WEBBradyodonty describes a condition of slowness of tooth replacement, in contrast to the limited retention and rapid replacement of teeth in elasmobranchs.