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Benson, R.H. (1972). The Bradleya Problem, with descriptions of two new psychrospheric ostracode genera, Agrenocythere and Poseidonamicus (Ostracoda: Crustacea). Smithsonian Contributions to Paleobiology. (12), 1-138.
145218
10.5479/si.00810266.12.1 [view]
Benson, R.H.
1972
The <i>Bradleya</i> Problem, with descriptions of two new psychrospheric ostracode genera, <i>Agrenocythere</i> and <i>Poseidonamicus</i> (Ostracoda: Crustacea)
Smithsonian Contributions to Paleobiology
(12), 1-138
Publication
Available for editors  PDF available
Abyssal, Deep-Sea
Paleontology, Fossils, Paleobiology
Systematics, Taxonomy
World and world ocean
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2013-01-12 18:30:12Z
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2013-02-20 11:39:14Z
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2015-07-02 19:56:13Z
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2016-07-04 22:57:03Z
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2023-02-19 21:37:31Z
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2025-05-27 10:55:48Z
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Agrenocythere Benson, 1972 (original description)
Agrenocythere cadoti Benson, 1972 (original description)
Agrenocythere radula (Brady, 1880) (new combination reference)
Agrenocythere spinosa Benson, 1972 (original description)
Bradleya Hornibrook, 1952 (redescription)
Bradleya dictyon (Brady, 1880) (redescription)
Cythere dictyon Brady, 1880 accepted as Bradleya dictyon (Brady, 1880) (subsequent type designation)
Poseidonamicus Benson, 1972 (original description)
Poseidonamicus major Benson, 1972 (original description)
Poseidonamicus minor Benson, 1972 (original description)
Poseidonamicus pintoi Benson, 1972 (original description)
Thaerocytheridae Hazel, 1967 (taxonomy source)
 Description

"The reticulum of Bradleya albatrossia has been formed into a bold, box-work frame similar to that of B. andamanae, ... [details]

 Description

"This species represents an end member in a morphological series that includes a form with a reduced size, reduced ... [details]

 Description

"This species is the only one known which is nude or smooth in the terminal regions on the carapace, and in the ... [details]

 Description

Somewhat similar to Bradleya normani in lateral outline, but the carinae are much more conspicuous. Many homologous ... [details]

 Description

Most similar to Bradleya paranuda, new species, a smooth, reticulum-free Recent species from the Philippines, ... [details]

 Description

This species is like Bradleya nuda except for its produced anterior margin (neither species has a discrete rim) and ... [details]

 Diagnosis

"Carapace subrectangular to subquadrate with broadly rounded anterior margin and squared posterior margin without ... [details]

 Diagnosis

"Distinguished from other known species of Bradleya by its bold, high, yet nonexcavate muri; the lack of a ... [details]

 Diagnosis

"Carapace small in size with very coarse reticulation. Distinguished from other species of Bradleya by its reduced ... [details]

 Diagnosis

"Distinguished from other species of Bradleya by the incomplete development of the reticulum in the anterior and ... [details]

 Diagnosis

Distinguished from other species of Bradleya by its overaIl box-like shape caused by the unusually straight and ... [details]

 Diagnosis

Distinguished from other species of Bradleya by its smooth, nonfoveolate carapace, devoid of a reticulum except for ... [details]

 Diagnosis

Like the smooth form Bradleya nuda, new species, this species is almost devoid of any traces of the reticulum. ... [details]

 Diagnosis

"A coarsely reticulate species of Bradleya with a conspicuous median ridge in the posterior, which joins with the ... [details]

 Diagnosis

"The massive reticulum of this species of Bradleya has strongly excavate muri and many of the fossae have merged by ... [details]

 Diagnosis

"This species of Bradleya (Quasibradleya) is distinguished by its moderate size, elongate shape, and unique ... [details]

 Diagnosis

"A robust species of Bradleya distinguished by its conspicuous ocular ridge (with eye tubercule), prominent dorsal ... [details]

 Dimensions

"Length of holotype 1.18 mm; height 0.65 mm." (Benson, 1972; 44) [details]

 Dimensions

"Length of holotype 0.86 mm; height 0.59 mm" (Benson, 1972; 46) [details]

 Dimensions

"Length of holotype 0.88 mm; height 0.46 mm." (Benson, 1972; 46) [details]

 Dimensions

"Length of holotype 1.08 mm; height 0.64 mm." (Benson, 1972; 45) [details]

 Distribution

"Known only from the type-locality in Tasmania. It is considered an inner shelf inhabitant judged on the basis of ... [details]

 Distribution

"Mid-shelf south of Australia. Miocene (?) to Recent." (Benson, 1972; 46) [details]

 Distribution

"Paleogene of New Zealand." (Benson, 1972; 45) [details]

 Etymology

"Named for the United States Fisheries Steamer Albatross, which worked in the western Pacific in 1900 and again in ... [details]

 Etymology

"Named for the Andaman Sea, around whose waters this species was found." (Benson, 1972: 40) [details]

 Etymology

Named for K. G. McKenzie who kindly furnished the samples (February 1967) in which this species was found. [details]

 Remark

"Bradleya (Quasibradleya) dictyonites is the most tricarinate of all of the named Bradleya species (or of the ... [details]

 Remark

"This form, now designated as a species (and the type-species of a new subgenus), was first noticed by Hornibrook ... [details]

 Remark

"Bradleya (Q.) paradictyonites is most similar to B. (Q.) dictyonites, a larger contemporary species, from which it ... [details]

 Remark

"This species is similar to Bradleya (Quasibradleya) dictyonites, new species, in that the median ridge has ... [details]

 Remark

"B. (Q.) prodictyonites is most closely related to B. (Q.) dictyonites, but is more quadrate. The ocular ridge of ... [details]

 Remark

"I had only a few valves of this species available for study. It could be an ecophenotypic variant of B. (Q.) ... [details]

 Taxonomy

Following Benson (1972) this spcies belongs to an unknown genus. [details]

 Taxonomy

Benson (1972) neither excluded this species from Bradleya nor included it in the list of Bradleya species. ... [details]

 Taxonomy

"Following Besnon (1972), this species belongs to a new genus." (Benson, 1972) [details]

 Taxonomy

Following Besnon (1972), this species belongs to a new genus. [details]

 Taxonomy

Benson (1972) considered questionable the assigment of this species to the genus Bradleya. [details]

 Taxonomy

Benson (1972) considered questionable the assigment of this species to the genus Bradleya. [details]

 Taxonomy

Following Benson (1972), this species belongs to an unkown genus. [details]

 Type locality

"The holotype was chosen from Hornibrook's sample locality F6487, the Old Rifle Butts Section, at Oamaru S.D., New ... [details]

 Type locality

"The sample from which this species is described was colJected by N. G. Lane in about 1957 from the Fossil Bluff ... [details]

 Type locality

"The Great Australian Bight in the vicinity of Oceanographer station OSS-01,60K (lat. 33°1O.0'S and long. 130 0 ... [details]

 Type locality

"The specimens considered in the description of B. (Q.) prodictyonites were from Hornibrook's (1952) sample ... [details]

 Type specimen

"The holotype (USNM 174328) is an adult male (?) left valve from the upper Oligocene of New Zealand (Plate 8; figure ... [details]

 Type specimen

"-The holotype (USNM 174328) is an adult male (?) left valve from the Oligo-Miocene of northern Tasmania (Plate 8: ... [details]

 Type specimen

"The holotype (USNM 174334) is an adult male left valve from the Recent of the Great Australian Bight (Figure 18)." ... [details]

 Type specimen

"The holotype (USNM 174327) is an adult female (?) left valve from the lower Oligocene of New Zealand (Plate 8: ... [details]

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