A large galaxiid fossil (Teleostei) from the Miocene of Central Otago, New Zealand

McDowall, R. M.; Pole, Mike

doi:10.1080/03014223.1997.9517532

Cited by 33 publications

(31 citation statements)

References 13 publications

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“…The Foulden Di− atomite is about 5 My older than the Bannockburn Formation (23 Ma versus 19-16 Ma) and given the specific environ− ment, size and distribution of its occurrence Galaxias effusus is not likely to represent one of the species described here based on otoliths. McDowall and Pole (1997) reported a large specimen of about 38 cm length from the Bannockburn Formation, and McDowall (2010) stated that it is quite unlike any living species, but insufficient detail has been preserved to permit formal description. Additional material from the Bannockburn Formation has been reported by Lee et al (2007), but McDowall (2010: 22), considers that: "distinct taxa are likely to have been involved though again insuffi− cient detail is present to permit formal description".…”

Section: Methodsmentioning

confidence: 99%

Biogeographical and phylogenetic implications of an early Miocene wren (Aves: Passeriformes: Acanthisittidae) from New Zealand

Worthy

Hand

Nguyen

et al. 2010

Journal of Vertebrate Paleontology

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Section: Methodsmentioning

confidence: 99%

Biogeographical and phylogenetic implications of an early Miocene wren (Aves: Passeriformes: Acanthisittidae) from New Zealand

Worthy

Hand

Nguyen

et al. 2010

Journal of Vertebrate Paleontology

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“…There are Fig. 1 Distributions of the Salmonidae and Osmeridae in the Northern Hemisphere, and Galaxiidae, Retropinnidae, and Lepidogalaxiidae in the Southern Hemisphere Rev Fish Biol Fisheries (2006) 16:233-422 235 certain galaxiid fossils that date back into the Miocene (McDowall 1976b;McDowall and Pole 1997) (Fig. 2).…”

mentioning

confidence: 98%

Crying wolf, crying foul, or crying shame: alien salmonids and a biodiversity crisis in the southern cool-temperate galaxioid fishes?

McDowall

2006

Rev Fish Biol Fisheries

275

292

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“…During the late Miocene (8-12 million years ago), much of central Otago was covered with a vast system of lakes, as evidenced by Miocene deposits. A number of fossils of fish resembling G. brevipinnis and G. vulgaris sensu lato, dating from the early Miocene (ϳ20 million years ago), have been found from freshwater deposits around Otago (McDowall 1976(McDowall , 1990McDowall and Pole 1997). It is tempting to suggest that the Miocene lake system may have promoted the radiation of the G. vulgaris complex.…”

Section: Diversification: Repeated Loss Of Diadromy or Freshwatermentioning

confidence: 99%

Cladogenesis and Loss of the Marine Life-History Phase in Freshwater Galaxiid Fishes (Osmeriformes: Galaxiidae)

Waters

Wallis

2007

Evolution

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Abstract. Switches from migratory (diadromous) to nonmigratory (freshwater) life histories are known to have occurred repeatedly in some aquatic taxa. However, the significance of the loss of diadromy as an initiator for speciation remains poorly understood. The rivers of New Zealand's South Island house a species flock of recently derived nonmigratory galaxiid fishes known as the Galaxias vulgaris complex. Members of this complex are morphologically and genetically similar to the diadromous G. brevipinnis found in New Zealand and southeastern Australia. We hypothesised that South Island's G. vulgaris complex (at least 10 nonmigratory lineages) represents a number of independent radiations from a migratory G. brevipinnis stock, with repeated loss of diadromy. Sequence data were obtained for 31 ingroup samples (G. vulgaris complex and G. brevipinnis) plus four outgroup taxa. A well-resolved phylogeny based on 5039 base pairs of the mitochondrial genome suggests that diadromy has been lost on three separate occasions. Thus, speciation in these galaxiid fishes is partly an incidental phenomenon caused by switches from diadromous to nonmigratory strategies. However, much of the subsequent nonmigratory diversity is monophyletic, suggesting that drainage evolution (vicariance) has also played a major role in cladogenesis. Levels of sequence divergence among major ingroup lineages (1.6-12.7%) suggest that the radiation is considerably older relative to Northern Hemisphere (postglacial) complexes of salmonid, osmerid, and gasterosteid fishes. Sympatric taxa are not monophyletic, suggesting that their coexistence reflects secondary contact rather than sympatric speciation. The monophyly of New Zealand G. brevipinnis is well supported, but both mitochondrial DNA and nuclear sequences indicate that G. brevipinnis is paraphyletic on an intercontinental scale. The divergence (maximum 11.5%) between Tasmanian and New Zealand G. brevipinnis, although large, supports marine dispersal rather than vicariance as the principle biogeographic mechanism on an intercontinental scale.

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A large galaxiid fossil (Teleostei) from the Miocene of Central Otago, New Zealand

Cited by 33 publications

References 13 publications

Biogeographical and phylogenetic implications of an early Miocene wren (Aves: Passeriformes: Acanthisittidae) from New Zealand

Biogeographical and phylogenetic implications of an early Miocene wren (Aves: Passeriformes: Acanthisittidae) from New Zealand

Crying wolf, crying foul, or crying shame: alien salmonids and a biodiversity crisis in the southern cool-temperate galaxioid fishes?

Cladogenesis and Loss of the Marine Life-History Phase in Freshwater Galaxiid Fishes (Osmeriformes: Galaxiidae)

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