Willsher Group and geology of the Triassic Kaka Point coastal section, south‐east Otago, New Zealand

Campbell, John; Coombs, D. S.; Grebneff, A

doi:10.1080/03014223.2003.9517719

Cited by 20 publications

(12 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the original definition, Murihiku Supergroup included sequences exposed near Kaka Point, south Otago (Kaka Point Structural Belt of Bishop & Turnbull 1996). These rocks are now recognised by Campbell et al (2003) (Fig. 2).…”

Section: Discussionmentioning

confidence: 99%

Murihiku Supergroup, New Zealand: Redefined

Campbell¹,

Mortimer

Turnbull

2003

Journal of the Royal Society of New Zealand

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

Murihiku Supergroup, New Zealand: Redefined

Campbell¹,

Mortimer

Turnbull

2003

Journal of the Royal Society of New Zealand

View full text Add to dashboard Cite

show abstract

“…Triassic ammonoids have been widely reported from New Zealand by Browne (1952), Kummel (1960Kummel ( , 1965, and Campbell et al (2003). Kummel (1960) noted that these ammonoids were closely allied to those in the Tethyan and circum-Pacific regions.…”

Section: Introductionmentioning

confidence: 98%

“…Kummel (1960) noted that these ammonoids were closely allied to those in the Tethyan and circum-Pacific regions. Jaws of ammonoids have also been reported from Triassic exposures from New Zealand by Campbell et al (2003) who called them anaptychi, but did not describe them.…”

Section: Introductionmentioning

confidence: 99%

“…This formation has recently been redescribed by Campbell et al (2003) and Jeans et al (2003) and consists of siltstones and fine sandstones interbedded with ash layers deposited in a nearshore to offshore setting. The formation is sparsely fossiliferous and contains both nektic and benthic fauna (e.g., scaphopods, pterioid and halobiid bivalves, lophospirid and pleurotomariid gastropods, terebratulid and rhynchonellid brachiopods, nautiloid fragments, crustacean appendages, and acritarchs, in addition to ammonoids-see below).…”

Section: Localitiesmentioning

confidence: 99%

See 1 more Smart Citation

Jaws of Triassic ammonoids from New Zealand

Landman¹,

Grebneff²

2006

New Zealand Journal of Geology and Geophysics

View full text Add to dashboard Cite

Cephalopod jaws have been recovered from the Etalian (Middle Triassic = Anisian-Ladinian) of New Zealand. The jaws are found as isolated elements in the Tilson Siltstone near Kaka Point, southeast Otago. The structures are interpreted as jaws of ceratitid andphylloceratid ammonoids. Most of the jaws are small, <10 mm in length, but two specimens are much larger: c. 35 mm in length. The lower jaws conform to the published descriptions of anaptychus type jaws. Each jaw is convex on the ventral side and terminates in a projected apex. The surface is covered with regularly spaced ridges that parallel the posterior margin. The inner lamella is preserved near the anterior margin and in areas where the outer lamella has eroded away. The upper jaws are rarer, with their inner lamella ending in a bilobate posterior margin. The lower jaws are similar to those of Paleozoic ammonoids and contrast with those of the Ancyloceratina and most of the Ammonitina, which are characterised by a midline flange with a central groove and a pair of calcareous plates (aptychi), and the Lytoceratina, which bear calcareous deposits at the apex.

show abstract

“…Simone (2006) considered Triplodon Spix in Wagner, 1827 as synonym, unlike Mansur & Pimpão (2008) who described a new species of this genus. The oldest Hyriidae record is from Triassic of New Zealand (Campbell et al 2003) and from Jurassic of South America (Perea et al 2009). Molecular clock indicated a Gondwanan origin of Hyriidae (Graf et al 2015;Santos-Neto et al 2016).…”

Section: Geographical Distribution Of South American Musselsmentioning

confidence: 99%

Freshwater mussels from South America: state of the art of Unionida, specially Rhipidodontini

2017

View full text Add to dashboard Cite

Miyahira, I. C.; Santos, S. B.; Mansur, M. C. D. Freshwater mussels from South America: state of the art of Unionida, specially Rhipidodontini. Biota Neotropica. 17(4): e20170341. http://dx.doi.org/10.1590/1676-0611-BN-2017-0341Abstract: Unionida is the most diverse clade of freshwater bivalves. Among the groups occurring in South America, one with the highest number of species is Rhipidodontini (Hyriidae, Unionida, Paleoheterodonta, Bivalvia). However several issues remains on taxonomy and systematic of this group, leading to problems on species identification, description, as also as a limiting factor to other type of studies (e.g., ecology, conservation,…). In this paper is presented a synthesis of available knowledge about Diplodon Spix in Wagner, 1827 and Rhipidodonta Mörch, 1853 in South America, as a first step in order to a better understating of Rhipidodontini. The evaluation of different authors exposes the little agreement between them that resulted in a sort of divergent taxonomical opinions. Some comments on ecology, conservation and habitat preferences were made. This work can also encourage future research on taxonomy, systematic, ecology and conservation of freshwater mussels in South America.

show abstract

Willsher Group and geology of the Triassic Kaka Point coastal section, south‐east Otago, New Zealand

Abstract: Willsher Group (new) and component formations in

Cited by 20 publications

References 29 publications

Murihiku Supergroup, New Zealand: Redefined

Murihiku Supergroup, New Zealand: Redefined

Jaws of Triassic ammonoids from New Zealand

Freshwater mussels from South America: state of the art of Unionida, specially Rhipidodontini

Contact Info

Product

Resources

About