Results 91 to 100 of about 1,320 (212)

Large Tristichopteridae (Sarcopterygii, Tetrapodomorpha) from the Late Famennian Evieux Formation of Belgium [PDF]

open access: yesPalaeontology, 2002
Remains of two large sarcopterygians are described from Famennian deposits in Belgium. One of them is referred to Eusthenodon wängsjöi Jarvik; it is the first occurrence of this genus in Belgium. The other, much larger one, appears to be a tristichopterid.
openaire   +1 more source

Sarcopterygii do Eopermiano da Bacia do Paraná, Estado de São Paulo

open access: yes, 2012
This contribution comprises a review of Early Permian Sarcopterygii (Coelacanthimorpha - coelacanths; Tetrapodomorpha - Osteolepimorpha and tetrapods) of the Paraná Basin in the state of São Paulo.
Chahud, Artur, Petri, Setembrino
core  

Figure 40 in The comparative osteology and phylogenetic relationships of African and South American lungfishes (Sarcopterygii: Dipnoi)

open access: yes, 2015
Figure 40. Anterior view of the computed tomography reconstructions of the vomerine teeth of extant lungfishes: A, Lepidosiren paradoxa, CAS 61327; B, Protopterus annectens, TMM M 1129; C, Protopterus dolloi, AMNH 246385; D, Protopterus aethiopicus, UF ...
Criswell, Katharine E.
core   +1 more source

Figure 42 in The comparative osteology and phylogenetic relationships of African and South American lungfishes (Sarcopterygii: Dipnoi)

open access: yes, 2015
Figure 42. Dorsal view of the computed tomography reconstructions of the left anocleithra of extant lungfishes, anterior to the left: A, Lepidosiren paradoxa, CAS 61327; B, Protopterus annectens, TMM M 1129; C, Protopterus dolloi, AMNH 246385; D ...
Criswell, Katharine E.
core   +1 more source

Phylogenetic analysis of the SAP30 family of transcriptional regulators reveals functional divergence in the domain that binds the nuclear matrix

open access: yesBMC Evolutionary Biology, 2009
Background Deacetylation of histones plays a fundamental role in gene silencing, and this is mediated by a corepressor complex containing Sin3 as an essential scaffold protein.
Mäki Markku   +3 more
doaj   +1 more source

Figure 53 in The comparative osteology and phylogenetic relationships of African and South American lungfishes (Sarcopterygii: Dipnoi)

open access: yes, 2015
Figure 53. Hypotheses of relationships for extinct and extant lungfish: A, strict consensus tree derived from morphological data and recovered using maximum parsimony; B, tree including only extant lungfish, derived from molecular sequences, and ...
Criswell, Katharine E.
core   +1 more source

Figure 14 in The comparative osteology and phylogenetic relationships of African and South American lungfishes (Sarcopterygii: Dipnoi)

open access: yes, 2015
Figure 14. Dorsal view of the computed tomography reconstructions of the frontoparietals of extant lungfishes, anterior to the left: A, Protopterus aethiopicus, UF 137272; B, Protopterus annectens, TMM M 1129; C, Lepidosiren paradoxa, CAS 61327; D ...
Criswell, Katharine E.
core   +1 more source

The nanos1 gene was duplicated in early Vertebrates and the two paralogs show different gonadal expression profiles in a shark

open access: yesScientific Reports, 2018
Nanos are RNA-binding proteins playing crucial roles in germ cell development and maintenance. Based on phylogenetic and synteny analyses, this study reveals that nanos1 gene has undergone multiple duplications and gene copies losses in Vertebrates ...
Laura Gribouval   +8 more
doaj   +1 more source

A NEW PHYLOGENETIC ANALYSIS AND CHARACTER MATRIX REASSESSMENT FOR THE COELACANTHS (SARCOPTERYGII: COELACANTHIFORMES)

open access: yes, 2023
3524 pages ; Coelacanths are a lineage of sarcopterygian fishes dating at least to the Early Devonian. They are the extant outgroup to (lungfishes + tetrapods) and are represented by two modern species in the genus Latimeria. Known from fossil material since 1822, coelacanths captured international attention upon the 1938 discovery of a living specimen.
openaire   +2 more sources

Figure 6 in The comparative osteology and phylogenetic relationships of African and South American lungfishes (Sarcopterygii: Dipnoi)

open access: yes, 2015
Figure 6. Computed tomography reconstruction of the skull of Lepidosiren paradoxa, CAS 61327: A, lateral view; B, dorsal view. Scale bar: 10 mm. DE, dermal ethmoid; EO, exoccipital; FP, frontoparietal; PS, parasphenoid; PT, pterygoid; PTTa, anterior ...
Criswell, Katharine E.
core   +1 more source

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