Devonian fish remains from the Dulcie Sandstone and Cravens Peak Beds, Georgina Basin, central Australia

Young, Grant M.; Goujet, Daniel

doi:10.18195/issn.0313-122x.65.2003.001-085

Cited by 46 publications

(44 citation statements)

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“…A diverse fish fauna including Wuttagoonaspis is well represented in associated sandstone lithologies of the Cravens Peak Beds (Fig. 1C), as recently described by Young & Goujet (2003). The only known Devonian limestone outcrop was initially assumed to be of Ordovician age, but sampling for microfossils revealed an assemblage of Devonian fish scales (thelodonts and acanthodians), first described by Turner et al (1981).…”

Section: Introductionsupporting

confidence: 59%

“…1C). The fish fauna in sandstones of the Cravens Peak Beds is documented by Young (1991) and Young & Goujet (2003). eous unit' (BCU) are indicated on the stratigraphic section in Figure 2C.…”

Section: Introductionmentioning

confidence: 94%

“…The first indication of a diverse osteichthyan fauna was an associated lungfish skull and rhipidistian remains documented by Young (1985) Fig. 1A), Young & Goujet (2003) have recently documented incomplete remains provisionally assigned to three osteichthyan groups (onychodontids, porolepiforms, rhizodontids).…”

Section: Introductionmentioning

confidence: 95%

“…Many localities in the adjacent sandstone lithology have yielded a diverse fish assemblage (Young 1991;Young & Goujet 2003). Young & Goujet (2003) discussed the geological evidence in more detail, and concluded that the Wuttagoonaspis fauna from the Cravens Peak Beds and lower Dulcie Sandstone in the Georgina Basin was probably no older than Pragian, and no younger than early Eifelian, but a more precise age assessment was not possible. Full systematic documentation of the faunas involved will clarify the age relationships, and the description of osteichthyans presented in this paper is a contribution to that result.…”

Section: Introductionmentioning

confidence: 99%

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New osteichthyans (bony fishes) from the Devonian of Central Australia

Young

Schultze

2005

Foss. Rec.

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Osteichthyan remains described from two localities in Central Australia (Mount Winter, Amadeus Basin, and southern Toomba Range, Georgina Basin) include the dipnoan Amadeodipterus kencampbelli n. gen., n. sp., the osteolepidid Muranjilepis winterensis n. gen., n. sp., and the onychodontid Luckeus abudda n. gen., n. sp., as well as indeterminate holoptychiid scales, osteolepidid scales of a new type from the Georgina Basin locality, and indeterminate onychodontid remains from both localities. Amadeodipterus n. gen. is a short-headed dipterid dipnoan with bones A and H enclosed into the skull roof; Muranjilepis n. gen. is a small form with short postparietal and parietoethmoidal shields, large orbits, and large pores of the sensory line system. It is closest to Thursius, and some Chinese osteolepidid material. Luckeus n. gen. is based on an onychodontid lower jaw with Meckel’s cartilage separately ossified perichondrally from the dentary and infradentary, and carrying the parasymphysial tooth whorl. Different osteichthyan taxa at the two localities indicate a difference in age and/or palaeoenvironment within the Early-Middle Devonian. Knochenfischreste aus zwei Fundorten Zentralaustraliens (Mount Winter, Amadeus Becken und südlicher Toomba Rücken, Georgina Becken) umfassen den Lungenfisch Amadeodipterus kencampbelli n. gen., n. sp., den osteolepididen Sarcopterygier Muranjilepiswinterensis n. gen., n. sp., und den onychodontiden Sarcopterygier Luckeus abudda n. gen., n. sp., sowie unbestimmte holoptychiide und osteolepidide Schuppen eines neuen Typs aus dem Fundort im Georgina Becken und unbestimmte onychodontide Reste von beiden Fundorten. Amadeodipterus n. gen. ist ein kurz-schädeliger Lungenfisch, bei dem die Knochen A und H in das Schädeldach miteingeschlossen sind. Bei Muranjilepis n. gen. handelt es sich um einen kleinen Osteolepididen mit kurzem Postparietal- und Parietoethmoidal-Schild, großen Augenhöhlen und großen Poren des Sinneskanalsystems; er ist am nächsten mit Thursius und einigen chinesischen Osteolepididen verwandt. Ein unbestimmter onychodontider Unterkiefer zeigt ein wahrscheinlich primitives Merkmal in der perichondralen Verknöcherung des Meckelschen Knorpels getrennt von Dentale und Infradentale, der die Unterlage der parasymphysialen Zahnspirale bildet. Verschiedene Knochenfischtaxa treten an den beiden Lokalitäten auf; das deutet auf unterschiedliches Alter und/oder Palaeoenviroment an der Unter-Mitteldevongrenze zwischen beiden Lokalitäten hin. doi:<a href="http://dx.doi.org/10.1002/mmng.200410002" target="_blank">10.1002/mmng.200410002</a>

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Section: Introductionsupporting

confidence: 59%

Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

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New osteichthyans (bony fishes) from the Devonian of Central Australia

Young

Schultze

2005

Foss. Rec.

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“…This includes elements from the Pragian-Eifelian Dulcie Sandstone and Cravens Peak Beds of Central Australia (Young and Goujet, 2003). This East Gondwanan record appears as old as the earliest porolepiform taxa from the Northern Hemisphere, such as Porolepis (Jarvik, 1972).…”

Section: Discussionmentioning

confidence: 99%

Upper Devonian osteichthyan remains from the Genoa River, Victoria, Australia

Holland¹

2010

MMV

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Holland, T. 2010. Upper Devonian osteichthyan remains from the Genoa River, Victoria, Australia. Memoirs of Museum Victoria 67: 35-44.The Genoa River Trackway site in the Upper Devonian Combyingbar Formation represents one of the earliest records of tetrapods (land vertebrates) from Australia. However, the osteichthyan assemblage from the site is poorly known compared to other Devonian tetrapod localities. New information from a tetrapodomorph fish lower jaw possibly indicates the first record of a tristichopterid from the Genoa River Beds. The specimen shares a posteroventral embayment in the profile of lower jaw with Eusthenopteron foordi, Platycephalichthys bischoffi, and Moroccan tristichopterid material, as well an isolated specimen of the 'osteolepidid' Gyroptychius. Polyplocodont and dendrodont teeth are also described from the Genoa River, with the latter indicating the presence of a large, porolepiform taxon. The antiarch placoderm Remigolepis represents the most abundant fossil fish taxon recorded from the Genoa River. The possible presence of phyllolepid placoderm material may support previous suggestions of a pre-Famennian age for the Genoa River Beds.

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The phyllolepid placoderm Cowralepis mclachlani: Insights into the evolution of feeding mechanisms in jawed vertebrates

Carr

Johanson

Ritchie

2009

Journal of Morphology

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Remarkably preserved specimens of Cowralepis mclachlani Ritchie, 2005 (Proc Linn Soc NSW 126:215-259) (Phyllolepida, Placodermi) represent a unique ontogenetic sequence adding to our understanding of anatomy, function, and phylogeny among basal jawed vertebrates (gnathostomes). A systematic review demonstrates that the Phyllolepida are a subgroup of the Arthrodira. Consideration of visceral and neurocranial characters supports the hypothesis that placoderms are the sister group to remaining gnathostomes. Placoderms possess, as adult plesiomorphic features, a number of characters that are only seen in the development of extant gnathostomes-a peramorphic shift relative to placoderms. Developmental evidence in vertebrates leads to a revised polarity of character transitions. These include 1) hyomandibula-neurocranium and ventral parachordal-palatoquadrate articulations (vertebrate synapomorphies); 2) jointed pharynx, paired basibranchials, anterior ethmoidal-palatoquadrate articulation, short trabeculae cranii, and anterior and posterior neurocranial fissures (gnathostome synapomorphies); and 3) fused basibranchials, dorsal palatoquadrate-neurocranium articulation, loss of the anterior neurocranial fissure, elongated trabeculae cranii, and transfer of the ventral parachordal-palatoquadrate articulation to the trabeculae (crown group gnathostomes). The level of preservation in C. mclachlani provides the basis for a reinterpretation of phyllolepid anatomy and function. Cowralepis mclachlani possesses paired basibranchials allowing the reinterpretation of the visceral skeleton in other placoderms. Mandible depression in C. mclachlani follows an osteichthyan pattern and the ventral visceral skeleton acts as a functional unit. Evidence for hypobranchial musculature demonstrates the neural crest origin of the basibranchials and that Cowralepis was a suction feeder. Finally, the position of the visceral skeleton relative to the neurocranium in placoderms parallels the condition in selachians and osteichthyans, but differs in the elongation of the occiput. The cucullaris fossa of placoderms (interpreted as a site of muscle attachment) is shown to represent, in part, the parabranchial chamber.

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Devonian fish remains from the Dulcie Sandstone and Cravens Peak Beds, Georgina Basin, central Australia

Abstract: -Fossil fish remains belonging to the WlIttagoonaspis assemblage are described from the Devonian rocks of the Georgina Basin, central Australia.

Cited by 46 publications

References 29 publications

New osteichthyans (bony fishes) from the Devonian of Central Australia

New osteichthyans (bony fishes) from the Devonian of Central Australia

Upper Devonian osteichthyan remains from the Genoa River, Victoria, Australia

The phyllolepid placoderm Cowralepis mclachlani: Insights into the evolution of feeding mechanisms in jawed vertebrates

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