Sarcopterygii

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Sarcopterygii

[sär‚käp·tə′rij·ē‚ī]
(vertebrate zoology)
A subclass of Osteichthyes, including Crossopterygii and Dipnoi in some systems of classification.
References in periodicals archive ?
The Early Devonian fish assemblages include, besides the dominating amphiaspidids, also cephalaspids, different placoderms, acanthodians, sarcopterygians (porolepiforms) and actinopterygians.
Hibernaspididae), cephalaspids, large arthrodires and sarcopterygians, show that the lowermost part of the Razvedochnyj Fm is exposed.
This may be due to the dominance of sarcopterygian scales and teeth or fragmentary remains.
Vertebrate remains at the Klunas site are represented in general by completely disarticulated placoderm plates and plate fragments, sarcopterygian scales and teeth, rarely bones of the head and shoulder girdle, and acanthodian spines and scales.
No sharp differences were observed between the three oryctocoenoses in the representation of sarcopterygian skeletal elements.
Sarcopterygian teeth (n = 38) are oriented by their tips mostly from north to south or in the opposite direction, and to the WSW; however, the mean vector is directed to the NW (Fig.
The most probable large predator of that times capable of making such damage to the armour of the antiarch placoderms could be the giant euarthrodire placoderm Dunkleosteus or large sarcopterygian Holoptychius.
Elongated skeletal elements, such as acanthodian spines with the length/width ratio varying from about 10 to 17 (depending on the completeness of the spine), sarcopterygian teeth with their characteristic shape of an elongated and sometimes slightly curved cone and with the length/width ratio changing approximately from 2.
Elongated placoderm and sarcopterygian bones might be better indicators of the palaeoflow direction than very elongated, but dense acanthodian spines or sarcopterygian teeth.
acanthodians Devononchus tenuispinus Gross and Homacanthus sveteensis Gross (were not found in 2009 and 2010), sarcopterygians Holoptychius cf.
The Middle Devonian fishes (placoderms, acanthodians, sarcopterygians, actinopterygians) were identified to a generic or higher level.
Vertebrates described in earlier studies include psammosteids (Obruchev & Mark-Kurik 1965; Mark-Kurik 1968, 1995), placoderms (Karatajute-Talimaa 1963), acanthodians (Valiukevicius 1998), and sarcopterygians (Vorobyeva 1977).