New placoderm fishes from the Late Devonian of South Africa

Long, John A.; Anderson, M. Eric; Gess, Robert W.; Hiller, Norton

doi:10.1080/02724634.1997.10010973

Cited by 44 publications

(51 citation statements)

References 8 publications

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“…8). For groenlandaspids, it is clear that the simple scheme put forward by Ritchie (1975) (Long et al 1997a;Daeschler et al in press), whilst the identification below of skull remains closely similar to the genus Groenlandaspis, otherwise only known from the Late Devonian, are two indications that the Georgina Basin assemblages could be somewhat younger than those so far documented from the Mulga Downs Group.…”

Section: Age Of the Faunamentioning

confidence: 89%

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

Young¹,

Goujet²

2003

Rec West Aust Mus Sup

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Section: Age Of the Faunamentioning

confidence: 89%

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

Young¹,

Goujet²

2003

Rec West Aust Mus Sup

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“…These observations suggest that phyllolepids and their associated faunas could be found in much older strata within East Gondwana, where poorly-known Early to Middle Devonian assemblages contain highly endemic taxa within the socalled Wuttagoonaspis fauna (Young and Goujet, 2003). Further refinement of existing biostratigraphic schemes using placoderms like Phyllolepis and associated taxa will benefit from further collecting and faunal descriptions in less well known regions such as South America (Young and Moody, 2002) and Africa (Long et al, 1997).…”

Section: Discussionmentioning

confidence: 99%

First Articulated Phyllolepid Placoderm from North America, with Comments on Phyllolepid Systematics

Long

Daeschler²

2013

Proceedings of the Academy of Natural Sciences of Philadelphia

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“…Since our original discovery, the genus Bothriolepis has now been described also from South Africa by Long et al (1997), and recently from Colombia by Janvier & Villarroel (2000). In addition, our new fauna includes several other groups not previously known from South America (e.g., phyllolepid placoderms), or representing the oldest known occurrence in South America (e.g., Dipnoi, the lungfishes).…”

Section: Introductionmentioning

confidence: 97%

“…The shape as preserved (Fig. 12F) corresponds with the reconstruction of Cumpbellodus from Gogo (Long 1997: fig. 14), but it is clear that the Venezuelan specimen lacks the large crenulate denticles of that form.…”

Section: E S C R I P T I O Nmentioning

confidence: 99%

A Middle-Late Devonian fish fauna from the Sierra de Perijá, western Venezuela, South America

Young

Moody

2002

Foss. Rec.

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A new Devonian fossil fish fauna from the region of Caiio Colorado between the Rio Palmar and Rio Socuy, Sierra de Perijh, Venezuela, comes from two localities and several horizons within the Campo Chico Formation, dated on plants and spores as Givetian-Frasnian in age. Placoderms are most common, with the antiarch Bothriolepis perija n. sp., showing affinity with species from the Aztec fish fauna of Victoria Land, Antarctica. A second antiarch, Venezuelepis mingui n.g. nsp., is also closely related to an Antarctic species, which is reassigned to this new genus. Fragmentary remains of a phyllolepid placoderm show similarity to the genus Austrophyllolepis from southeastern Australia. Chondrichthyan spines are provisionally referred to the Antarctilamnidae, and acanthodian remains include spines of the widespread taxon Muchueracunthus. Osteichthyans are represented by osteolepid and dipnoan scales and teeth, and scales lacking cosmine which may belong to another major taxon. This fauna has provided the first Devonian record from South America of three major fish groups: antiarch and phyllolepid placoderms, and dipnoans. These are widely distributed on most other continents. Although invertebrates and plants from the same sequence closely resemble those of eastern North America, the endemic elements in the fish fauna indicate Gondwana affinities. Phyllolepid placoderms are common in Givetian-Frasnian strata of Australia and Antarctica, but are only known from the Famennian in the Northern Hemisphere. The new phyllolepid occurrence extends their range across the northern margin of Palaeozoic Gondwana. The age and affinities of this new fish fauna are consistent with a model of biotic dispersal between Gondwana and Euramerica at or near the Frasnian-Famennian boundary. A narrow marine barrier separating northern and southern continental landmasses is indicated, in contrast to the wide equatorial ocean for the Late Devonian postulated from palaeomagnetic data.Key words: Fishes, Placodermi, Chondrichthyes, Osteichthyes, Acanthodii, Devonian, Venezuela. ZusammenfassungEs wird eine neue devonische Fischfauna aus dem Gebiet zwischen Caiio Colorado und Rio Socuy, Sierra de Perija, beschrieben. Die Funde stammen aus zwei Lokalitaten und mehreren Horizonten innerhalb der Campo Chico Formation, die auf Grundlage von Untersuchungen der Pflanzen-und Sporenfunde dem Zeitabschnitt Givetium-Frasnium zugeordnet werden. Placodermen sind durch den Antiarchen Bothriolepis periju n. sp. haufig vertreten. Sie sind mit Arten der Aztec-Fischfauna von Viktoria Land, Antarktis, verwandt. Ein zweiter Antiarche, der Venezuelepis ningui n. g. n. sp. ist eng mit einer Spezies aus der Antarktis verwandt, die ebenfalls dieser neuen Gattung zugeschrieben wird. Fragmentarische Reste eines phyllolepiden Placodermen weisen Ahnlichkeiten mit der Gattung Austrophyllolepis aus dem Siidosten Australiens auf. Wirbel eines Chondrichthyer werden vorlaufig den Antarctilamnidae zugeschrieben. Acanthodir-Reste schlieBen das weitverbreitete Taxon Muchae...

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New placoderm fishes from the Late Devonian of South Africa

Cited by 44 publications

References 8 publications

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

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

First Articulated Phyllolepid Placoderm from North America, with Comments on Phyllolepid Systematics

A Middle-Late Devonian fish fauna from the Sierra de Perijá, western Venezuela, South America

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