Late Eocene Decapod Crustacea from North Westland, South Island, New Zealand
Eight species of brachyuran decapod crustaceans are recorded from coastal outcrops of Island Sandstone between Perpendicular Point and Punakaiki, Westland, New Zealand. The fauna consists of three raninids— Laeviranina pororariensis (Glaessner), L. keyesi n. sp., Lyreidus bennetti n. sp.; two portun...
Published in: | Journal of Paleontology |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
1990
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s0022336000018989 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000018989 |
id |
crcambridgeupr:10.1017/s0022336000018989 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/s0022336000018989 2024-04-07T07:47:09+00:00 Late Eocene Decapod Crustacea from North Westland, South Island, New Zealand Feldmann, Rodney M. Maxwell, Phillip A. 1990 http://dx.doi.org/10.1017/s0022336000018989 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000018989 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of Paleontology volume 64, issue 5, page 779-797 ISSN 0022-3360 1937-2337 Paleontology journal-article 1990 crcambridgeupr https://doi.org/10.1017/s0022336000018989 2024-03-08T00:37:10Z Eight species of brachyuran decapod crustaceans are recorded from coastal outcrops of Island Sandstone between Perpendicular Point and Punakaiki, Westland, New Zealand. The fauna consists of three raninids— Laeviranina pororariensis (Glaessner), L. keyesi n. sp., Lyreidus bennetti n. sp.; two portunids— Rhachiosoma granuliferum (Glaessner), Pororaria eocenica Glaessner; a goneplacid— Carcinoplax temikoensis n. sp.; and two majids— Leptomithrax griffini n. sp., Notomithrax allani n. sp. Together, they form the most diverse brachyuran assemblage yet described from New Zealand. The decapods are preserved in unusual elliptical masses, with their long axes typically parallel to bedding, containing superbly preserved cuticle often surrounded by well-formed fecal pellets, probably of decapod origin. The accumulations are interpreted to be mechanical concentrations within depressions produced by decapods or associated spatangoid echinoids. Although seven of the species have been recorded only from the Island Sandstone, Rhachiosoma granuliferum (Glaessner) is now known to occur in the correlative deep-water facies of the Kaiata Formation in North Westland, as well as in the Tapui Sandstone, North Otago (middle Eocene), and from coeval rocks at Snowdrift Quarry, southeast Otago. The raninids suggest comparison with congeneric forms from Snowdrift Quarry and the Tapui Sandstone, as well as with the La Meseta Formation, Seymour Island, Antarctica. Based upon associated foraminiferans, a Kaiatan–Runangan (late Eocene) age is assigned to this fauna. The occurrences of Carcinoplax, Leptomithrax , and Notomithrax represent paleobiogeographic and stratigraphic records for the genera. Article in Journal/Newspaper Antarc* Antarctica Seymour Island Cambridge University Press New Zealand Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) Seymour Island ENVELOPE(-56.750,-56.750,-64.283,-64.283) Journal of Paleontology 64 5 779 797 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Paleontology |
spellingShingle |
Paleontology Feldmann, Rodney M. Maxwell, Phillip A. Late Eocene Decapod Crustacea from North Westland, South Island, New Zealand |
topic_facet |
Paleontology |
description |
Eight species of brachyuran decapod crustaceans are recorded from coastal outcrops of Island Sandstone between Perpendicular Point and Punakaiki, Westland, New Zealand. The fauna consists of three raninids— Laeviranina pororariensis (Glaessner), L. keyesi n. sp., Lyreidus bennetti n. sp.; two portunids— Rhachiosoma granuliferum (Glaessner), Pororaria eocenica Glaessner; a goneplacid— Carcinoplax temikoensis n. sp.; and two majids— Leptomithrax griffini n. sp., Notomithrax allani n. sp. Together, they form the most diverse brachyuran assemblage yet described from New Zealand. The decapods are preserved in unusual elliptical masses, with their long axes typically parallel to bedding, containing superbly preserved cuticle often surrounded by well-formed fecal pellets, probably of decapod origin. The accumulations are interpreted to be mechanical concentrations within depressions produced by decapods or associated spatangoid echinoids. Although seven of the species have been recorded only from the Island Sandstone, Rhachiosoma granuliferum (Glaessner) is now known to occur in the correlative deep-water facies of the Kaiata Formation in North Westland, as well as in the Tapui Sandstone, North Otago (middle Eocene), and from coeval rocks at Snowdrift Quarry, southeast Otago. The raninids suggest comparison with congeneric forms from Snowdrift Quarry and the Tapui Sandstone, as well as with the La Meseta Formation, Seymour Island, Antarctica. Based upon associated foraminiferans, a Kaiatan–Runangan (late Eocene) age is assigned to this fauna. The occurrences of Carcinoplax, Leptomithrax , and Notomithrax represent paleobiogeographic and stratigraphic records for the genera. |
format |
Article in Journal/Newspaper |
author |
Feldmann, Rodney M. Maxwell, Phillip A. |
author_facet |
Feldmann, Rodney M. Maxwell, Phillip A. |
author_sort |
Feldmann, Rodney M. |
title |
Late Eocene Decapod Crustacea from North Westland, South Island, New Zealand |
title_short |
Late Eocene Decapod Crustacea from North Westland, South Island, New Zealand |
title_full |
Late Eocene Decapod Crustacea from North Westland, South Island, New Zealand |
title_fullStr |
Late Eocene Decapod Crustacea from North Westland, South Island, New Zealand |
title_full_unstemmed |
Late Eocene Decapod Crustacea from North Westland, South Island, New Zealand |
title_sort |
late eocene decapod crustacea from north westland, south island, new zealand |
publisher |
Cambridge University Press (CUP) |
publishDate |
1990 |
url |
http://dx.doi.org/10.1017/s0022336000018989 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000018989 |
long_lat |
ENVELOPE(-56.767,-56.767,-64.283,-64.283) ENVELOPE(-56.750,-56.750,-64.283,-64.283) |
geographic |
New Zealand Seymour Seymour Island |
geographic_facet |
New Zealand Seymour Seymour Island |
genre |
Antarc* Antarctica Seymour Island |
genre_facet |
Antarc* Antarctica Seymour Island |
op_source |
Journal of Paleontology volume 64, issue 5, page 779-797 ISSN 0022-3360 1937-2337 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0022336000018989 |
container_title |
Journal of Paleontology |
container_volume |
64 |
container_issue |
5 |
container_start_page |
779 |
op_container_end_page |
797 |
_version_ |
1795672072774483968 |