| Reference Type | Journal (article/letter/editorial) |
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| Title | Late Eocene Decapod Crustacea from North Westland, South Island, New Zealand |
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| Journal | Journal of Paleontology |
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| Authors | Feldmann, Rodney M. | Author |
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| Maxwell, Phillip A. | Author |
| Year | 1990 (September) | Volume | 64 |
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| Issue | 5 |
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| Publisher | Cambridge University Press (CUP) |
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| DOI | doi:10.1017/s0022336000018989Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 415046 | Long-form Identifier | mindat:1:5:415046:0 |
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| GUID | 0 |
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| Full Reference | Feldmann, Rodney M., Maxwell, Phillip A. (1990) Late Eocene Decapod Crustacea from North Westland, South Island, New Zealand. Journal of Paleontology, 64 (5) 779-797 doi:10.1017/s0022336000018989 |
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| Plain Text | Feldmann, Rodney M., Maxwell, Phillip A. (1990) Late Eocene Decapod Crustacea from North Westland, South Island, New Zealand. Journal of Paleontology, 64 (5) 779-797 doi:10.1017/s0022336000018989 |
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| In | (1990, September) Journal of Paleontology Vol. 64 (5) Cambridge University Press (CUP) |
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| Abstract/Notes | 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. |
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