A New Actinopterygian From the Famennian of East Greenland and the Interrelationships of Devonian Ray-Finned Fishes

Friedman, Matt; Blom, Henning

doi:10.1666/0022-3360(2006)80[1186:anaftf]2.0.co;2

Cited by 51 publications

(113 citation statements)

References 47 publications

(73 reference statements)

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“…Gardiner (1993, p. 611 -12) united "Mimia" from Gogo and Howqualepis Long, 1988 from Victoria within a new family Mimiidae, but did not provide a diagnosis. Subsequent phylogenetic analyses have consistently failed to recover an exclusive sister-group relationship between these two genera (Taverne 1997, Schultze & Cumbaa 2001, Friedman & Blom 2006. Our new phylogenetic …”

Section: Methodsmentioning

confidence: 72%

“…Terminology herein follows that of Gardiner et al (2005, Gardiner & Schaeffer 1989, and for skull roofing bones we use the older (conventional) actinopterygian terminology, following recent work such as Friedman & Blom (2006), rather than employing tetrapod skull roof homologies (as used in Schultze & Cumbaa 2001). Remarks.…”

Section: Methodsmentioning

confidence: 99%

“…The taxa comprised 16 Devonian actinopterygians known from reasonably complete material, and an outgroup of three Devonian sarcopterygians. The study was based on that presented in Friedman & Blom (2006), which was concerned only with the interrelationships of Devonian actinopterygians, excluding younger taxa. Our character matrix (Fig.…”

Section: Phylogenetic Analysismentioning

confidence: 99%

“…Our character matrix (Fig. A1) was based on the 54 characters of Friedman & Blom (2006), with 17 additional characters, largely restricted to the dermal osteology. As detailed neurocranial information among Devonian taxa is currently restricted to those forms from the Gogo Formation, these characters are not considered.…”

Section: Phylogenetic Analysismentioning

confidence: 99%

“…Gardiner 1963, fig.12) are coded as unknown pending the publication of these findings. The revised coding rendered characters 12 and 14 of Friedman & Blom's (2006) matrix parsimony uninformative. All characters were treated in the Acctran mode and analysed using a branch and bound search algorithm.…”

Section: Phylogenetic Analysismentioning

confidence: 99%

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A new basal actinopterygian fish from the Middle Devonian Aztec Siltstone of Antarctica

2008

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A new basal actinopterygian fish, Donnrosenia schaefferi gen. et sp. nov., is described from the Middle Devonian (Givetian) Aztec Siltstone of southern Victoria Land, Antarctica. Donnrosenia gen. nov. is characterized by the large parietals which are of almost equivalent size to the frontals, very small intertemporals, a small accessory operculum situated dorsally to the prominent anterodorsal process of the suboperculum, a deep dentary with anterior flexure, porous ornamentation on the clavicle, an elongate body form with macromeric squamation, an absence of paired fringing fulcra on the fins, and pectoral lepidotrichia which are unsegmented for much of their length. A phylogenetic analysis based on dermal skeletal features of Devonian actinopterygians indicates that Donnrosenia gen. nov. is the sister taxon to Howqualepis from the Middle Devonian of Victoria, Australia, and is embedded within a possible clade containing the actinopterygians from the Gogo Formation, Western Australia. This supports the concept of an endemic radiation of East Gondwanan actinopterygians, and reinforces the already strong biogeographical similarities between the Middle Devonian palaeofaunas of Australia and Antarctica.

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Section: Methodsmentioning

confidence: 72%

Section: Methodsmentioning

confidence: 99%

Section: Phylogenetic Analysismentioning

confidence: 99%

Section: Phylogenetic Analysismentioning

confidence: 99%

Section: Phylogenetic Analysismentioning

confidence: 99%

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A new basal actinopterygian fish from the Middle Devonian Aztec Siltstone of Antarctica

2008

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A new actinopterygian from the Late Devonian Gogo Formation, Western Australia

Choo

Lü

Giles

et al. 2018

Papers in Palaeontology

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The study of early actinopterygians (ray‐finned fishes) from the Devonian has been hampered by imperfect preservation in the majority of taxa. The Late Devonian (early Frasnian) Gogo Formation of north‐western Western Australia is notable in producing complete fossil actinopterygians with exceptional three‐dimensional preservation of both the dermal and endoskeletal anatomy. Four taxa have been described and have proved invaluable in understanding the anatomy of early representatives of this clade. Here, we present a fifth Gogo taxon, based on a single exceptionally preserved specimen and representing a new genus and species of early ray‐finned fish. The neurocranium was CT scanned, permitting a detailed examination of the endocast. The new taxon possesses unusual features including a greatly enlarged spiracular opening and extensive spinose ornamentation on the dermal skull bones, median ridge scutes and lepidotrichia. The endocast displays a mosaic of characters, some of which are similar to Mimipiscis and non‐actinopterygian outgroups, while other features are more akin to Raynerius from the Late Devonian of France as well as several stratigraphically younger taxa. A phylogenetic analysis resolves the new form as sister taxon to fishes from the Late Devonian of the northern hemisphere and all post‐Devonian actinopterygians, confirming that the assemblage of fossil ray fins from the Gogo Formation is part of the wider Devonian actinopterygian radiation.

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Cranial morphology of the Silurian sarcopterygian Guiyu oneiros (Gnathostomata: Osteichthyes)

Qiao

Zhu

2010

Sci. China Earth Sci.

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Cranial morphological features of the stem-group sarcopterygian Guiyu oneiros Zhu et al., 2009 provided here include the dermal bone pattern and anatomical details of the ethmosphenoid. Based on those features, we restored, for the first time, the skull roof bone pattern in the Guiyu clade that comprises Psarolepis and Achoania. Comparisons with Onychodus, Achoania, coelacanths, and actinopterygians show that the posterior nostril enclosed by the preorbital or the preorbital process is shared by actinopterygians and sarcopterygians, and the lachrymals in sarcopterygians and actinopterygians are not homologous. The endocranium closely resembles that of Psarolepis, Achoania and Onychodus; however, the attachment area of the vomer possesses irregular ridges and grooves as in Youngolepis and Diabolepis. The orbito-nasal canal is positioned mesial to the nasal capsule as in Youngolepis and porolepiforms. The position of the hypophysial canal at the same level or slightly anterior to the ethmoid articulation represents a synapmorphy of the Guiyu clade. The large attachment area of the basicranial muscle indicates the presence of a well-developed intracranial joint in Guiyu. Sarcopterygii, Osteichthyes, Cranial morphology, homology, Silurian, China Citation:Qiao T, Zhu M. Cranial morphology of the Silurian sarcopterygian Guiyu oneiros (Gnathostomata: Osteichthyes).

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A New Actinopterygian From the Famennian of East Greenland and the Interrelationships of Devonian Ray-Finned Fishes

Cited by 51 publications

References 47 publications

A new basal actinopterygian fish from the Middle Devonian Aztec Siltstone of Antarctica

A new basal actinopterygian fish from the Middle Devonian Aztec Siltstone of Antarctica

A new actinopterygian from the Late Devonian Gogo Formation, Western Australia

Cranial morphology of the Silurian sarcopterygian Guiyu oneiros (Gnathostomata: Osteichthyes)

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