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 ?
Recent studies of 29 actinopterygian and 90 sarcopterygian genomes revealed that the AQP2, -5, or -6 gene clusters represent a genomic apomorphy since they are only found in the lobe-finned fish lineage (Sarcopterygii), including tetrapods that secondarily adapted to the aquatic environment (Cerda and Finn, 2010; Tingaud-Sequeira et al.
Although the aquaporin repertoires have thus increased in vertebrates, with novel forms retained in non-eutherian members (Aqpl3, -14, -15, and -16), the expansion was unequal, with unique gene clusters of AQP2, -5, and -6-related paralogs only evolving in the sarcopterygian lineage.
Unfortunately, identifying the specific taxa that produced them is not possible, but their association with various fossils from acanthodian, actinopterygian, sarcopterygian, and rhipidistian (crossopterygian) fish suggests that any of these are potential sources of the coprolites and nonspiraled cololites.
222) Lophosteus the earliest osteichthyan which cannot be placed among either the actinopterygians or sarcopterygians.
The bones themselves of the osteolepiform sarcopterygian Eusthenodon sp.
Only the Sinostega palaeo-tetrapod community, which existed in the North China faunistic province, lacks this genus; however, there are some yet undescribed sarcopterygians mentioned by Zhu et al.
the heterosteid Tollichthys, and several sarcopterygians.
The Early Devonian fish assemblages include, besides the dominating amphiaspidids, also cephalaspids, different placoderms, acanthodians, sarcopterygians (porolepiforms) and actinopterygians.
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.
Recently sarcopterygian remains belonging to a tristichopterid were identified in the Abava Mb in Estonia (I.