Pub Date : 1998-01-01DOI: 10.1080/03115519808619198
Qianyu Li, N. James, B. Mcgowran, Y. Bone, J. Cann
The mid-latitude, cool-water, high-energy Lincoln and Lacepede Shelves along the southern Australian margin are covered with mixed Holocene and Pleistocene sediments. Foraminiferal specimens of Recent and Pleistocene age from dredge samples are strongly mixed. Eight assemblages in two major groups A and B were recognised from the inner shelf to the upper slope, and they appear to be depth-related. However, some are typical of localised environments such as an upwelling zone (assemblage A2) or areas strongly affected by a high accumulation of relict specimens indicative of previous lagoonal deposition (assemblages A3 and A4). Sediment starvation due to strong wave abrasion is largely responsible for the preservation of this mixed biofacies. The interaction between shelf waters (the Great Australian Bight Current), waters from the Spencer and St. Vincent Gulfs, oceanic waters and waters from the River Murray, is suggested as the main factor controlling the overall distribution pattern of foraminifera. A war...
{"title":"Synergetic influence of water masses and Kangaroo Island barrier on foraminiferal distribution, Lincoln and Lacepede shelves, South Australia: A synthesis","authors":"Qianyu Li, N. James, B. Mcgowran, Y. Bone, J. Cann","doi":"10.1080/03115519808619198","DOIUrl":"https://doi.org/10.1080/03115519808619198","url":null,"abstract":"The mid-latitude, cool-water, high-energy Lincoln and Lacepede Shelves along the southern Australian margin are covered with mixed Holocene and Pleistocene sediments. Foraminiferal specimens of Recent and Pleistocene age from dredge samples are strongly mixed. Eight assemblages in two major groups A and B were recognised from the inner shelf to the upper slope, and they appear to be depth-related. However, some are typical of localised environments such as an upwelling zone (assemblage A2) or areas strongly affected by a high accumulation of relict specimens indicative of previous lagoonal deposition (assemblages A3 and A4). Sediment starvation due to strong wave abrasion is largely responsible for the preservation of this mixed biofacies. The interaction between shelf waters (the Great Australian Bight Current), waters from the Spencer and St. Vincent Gulfs, oceanic waters and waters from the River Murray, is suggested as the main factor controlling the overall distribution pattern of foraminifera. A war...","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"153-176"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619198","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59988465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-01-01DOI: 10.1080/03115519808619237
B. Mamet
The affinities of a puzzling microfossil, Ningbingellina veeversi n. gen., n. sp., originally reported from the Late Devonian Ningbing Limestone, in the Bonapart Gulf Basin, Western Australia are discussed. Links with the thallus of uncalcified dasycladale Aciculelleae, with udoteaceans, and with calcispheres are explored, and an affinity with calcified dasycladale sporangium is tentatively proposed.
本文讨论了西澳大利亚Bonapart湾盆地晚泥盆世宁冰灰岩中发现的令人费解的微化石Ningbingellina veeversi n. gen.， n. sp.的类群。探讨了其与未钙化的水枝状针叶的菌体、与骨囊的联系，并初步提出了其与钙化的水枝状孢子囊的亲缘关系。
{"title":"A Late Devonian microfossil with dasyclad algae affinities from northwestern Australia","authors":"B. Mamet","doi":"10.1080/03115519808619237","DOIUrl":"https://doi.org/10.1080/03115519808619237","url":null,"abstract":"The affinities of a puzzling microfossil, Ningbingellina veeversi n. gen., n. sp., originally reported from the Late Devonian Ningbing Limestone, in the Bonapart Gulf Basin, Western Australia are discussed. Links with the thallus of uncalcified dasycladale Aciculelleae, with udoteaceans, and with calcispheres are explored, and an affinity with calcified dasycladale sporangium is tentatively proposed.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"21-28"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619237","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59988547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-01-01DOI: 10.1080/03115519808619195
V. Krassilov, D. Dilcher, J. Douglas
A revision of the Lower Cretaceous Koonwarra material first assigned to angiosperms and subsequently to sphenopsids shows morphological and anatomical characters typical of ephedroid (gnetophyte) affinities. Shoots are preserved as clayey-ferruginous films deposited beneath the cuticle reflecting either the interior relief of the epidermal cell pattern or subepidermal sclerenchymous strands (rugulate striations) and vascular tissue of the internodes. The articulate shoots are similar to Ephedra foliata and some other extant species with 3–4 decussate, basally connate leaves at each node, sunken stomata in intercostal zones, alternating large and small vascular bundles, paired leaf traces, and the morphology of tracheary elements, but differ in the leaf number per node ranging from two to eight and in the considerably lower ratio of leaves to internode vascular bundles. A new genus and species Leongathia elegans is described. The co-occurrence of gnetophytes and early angiosperms in the lower Aptian of Koo...
{"title":"New ephedroid plant from the Lower Cretaceous Koonwarra Fossil Bed, Victoria, Australia","authors":"V. Krassilov, D. Dilcher, J. Douglas","doi":"10.1080/03115519808619195","DOIUrl":"https://doi.org/10.1080/03115519808619195","url":null,"abstract":"A revision of the Lower Cretaceous Koonwarra material first assigned to angiosperms and subsequently to sphenopsids shows morphological and anatomical characters typical of ephedroid (gnetophyte) affinities. Shoots are preserved as clayey-ferruginous films deposited beneath the cuticle reflecting either the interior relief of the epidermal cell pattern or subepidermal sclerenchymous strands (rugulate striations) and vascular tissue of the internodes. The articulate shoots are similar to Ephedra foliata and some other extant species with 3–4 decussate, basally connate leaves at each node, sunken stomata in intercostal zones, alternating large and small vascular bundles, paired leaf traces, and the morphology of tracheary elements, but differ in the leaf number per node ranging from two to eight and in the considerably lower ratio of leaves to internode vascular bundles. A new genus and species Leongathia elegans is described. The co-occurrence of gnetophytes and early angiosperms in the lower Aptian of Koo...","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"123-133"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619195","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59987983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-01-01DOI: 10.1080/03115519808619202
F. Olóriz, G. Westermann
The new genus Sulaites comprises the mainly Late Oxfordian species group of “Perisphinctes” sularus and moluccanus, Boehm spp., originally described from the Sula Islands of eastern Indonesia, and the Late Oxfordian-?Early Kimmeridgian species group of “Pseudoparaboliceras aramaraii” Gerth, originally described from Irian Jaya. The designated type-species of Sulaites is Perisphinctes sularus Boehm 1907. All syntypes of P. sularus and moluccanus have been destroyed. Because no microconchs resembling Boehm's illustrated specimens are available from Sula, a complete microconch from Papua New Guinea is designated as the neotype. “P.” moluccanus is included in the type-species. Both Gerth's (1965) genus-group name Pseudoparaboliceras and species epithet aramaraii have no designated types and are therefore nomina nuda. The substitute name proposed is Sulaites gerthi n. sp. Sulaites is known from Papua New Guinea, and probably New Zealand and Nepal.
{"title":"The perisphinctid ammonite Sulaites n. gen. from the upper Jurassic of the Indo-Southwest Pacific","authors":"F. Olóriz, G. Westermann","doi":"10.1080/03115519808619202","DOIUrl":"https://doi.org/10.1080/03115519808619202","url":null,"abstract":"The new genus Sulaites comprises the mainly Late Oxfordian species group of “Perisphinctes” sularus and moluccanus, Boehm spp., originally described from the Sula Islands of eastern Indonesia, and the Late Oxfordian-?Early Kimmeridgian species group of “Pseudoparaboliceras aramaraii” Gerth, originally described from Irian Jaya. The designated type-species of Sulaites is Perisphinctes sularus Boehm 1907. All syntypes of P. sularus and moluccanus have been destroyed. Because no microconchs resembling Boehm's illustrated specimens are available from Sula, a complete microconch from Papua New Guinea is designated as the neotype. “P.” moluccanus is included in the type-species. Both Gerth's (1965) genus-group name Pseudoparaboliceras and species epithet aramaraii have no designated types and are therefore nomina nuda. The substitute name proposed is Sulaites gerthi n. sp. Sulaites is known from Papua New Guinea, and probably New Zealand and Nepal.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"231-240"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619202","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59988662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-01-01DOI: 10.1080/03115519808619333
J. Conran, D. Christophel
A monocotyledonous leaf macrofossil taxon from Golden Grove in Adelaide, South Australia is recognised as being close to several extant Australasian species of Cordyline, especially those in the C. stricta (Sims) Endl. / C. fruticosa (L.) A. Chev. complex. The fossil is assigned to the form genus Paracordyline, known previously from the Oligocene Kerguelen Islands. However, as the Golden Grove taxon differs markedly from the Kerguelen species, it is considered to be a new species, P. aureonemoralis Conran & Christophel.
{"title":"Paracordyline aureonemoralis (Lomandraceae): an Eocene monocotyledon from South Australia","authors":"J. Conran, D. Christophel","doi":"10.1080/03115519808619333","DOIUrl":"https://doi.org/10.1080/03115519808619333","url":null,"abstract":"A monocotyledonous leaf macrofossil taxon from Golden Grove in Adelaide, South Australia is recognised as being close to several extant Australasian species of Cordyline, especially those in the C. stricta (Sims) Endl. / C. fruticosa (L.) A. Chev. complex. The fossil is assigned to the form genus Paracordyline, known previously from the Oligocene Kerguelen Islands. However, as the Golden Grove taxon differs markedly from the Kerguelen species, it is considered to be a new species, P. aureonemoralis Conran & Christophel.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"349-357"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619333","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59989106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-01-01DOI: 10.1080/03115519808619200
Yuan Xun-lai, H. Hofmann
Well-preserved, three-dimensional microfossils are reported from a 3.7 m thick black phosphorite bed in the Sinian Doushantuo Formation at Wengan Phosphate Mine, Guizhou Province, southwest China. The diverse assemblage, observed in thin sections, comprises planktonic acritarchs, benthic cyanobacteria, bacteria, and thallophytes. Twenty one taxa are recognized, including 1 new genus and 4 new species. Acritarchs include Baltisphaeridium rigidum sp. nov., Vulcanisphaera phacelosa sp. nov., Comasphaeridium magnum Zhang 1984, Cymatiosphaeroides yinii sp. nov., Dicrospinasphaera zhangii gen. et sp. nov., Echinosphaeridium maximum (Yin, 1987) Knoll, 1992, Ericiasphaera sp., ?Ericiasphaera sp., Hocosphaeridium scaberfacium Zang & Walter, 1992, Meghystrichosphaeridium sp., Meghystrichosphaeridium wenganensis Chen & Liu, 1986, Polyhedrosphaeridium sp. The cyanobacteria and bacteria comprise Paratetraphycus giganteus Zhang, 1984, Gloeodiniopsis lamellosa (Schopf, 1968) Knoll & Golubic, 1979, Globophycus sp., Myxoc...
{"title":"New microfossils from the neoproterozoic (Sinian) Doushantuo Formation, Wengan, Guizhou Province, southwestern China","authors":"Yuan Xun-lai, H. Hofmann","doi":"10.1080/03115519808619200","DOIUrl":"https://doi.org/10.1080/03115519808619200","url":null,"abstract":"Well-preserved, three-dimensional microfossils are reported from a 3.7 m thick black phosphorite bed in the Sinian Doushantuo Formation at Wengan Phosphate Mine, Guizhou Province, southwest China. The diverse assemblage, observed in thin sections, comprises planktonic acritarchs, benthic cyanobacteria, bacteria, and thallophytes. Twenty one taxa are recognized, including 1 new genus and 4 new species. Acritarchs include Baltisphaeridium rigidum sp. nov., Vulcanisphaera phacelosa sp. nov., Comasphaeridium magnum Zhang 1984, Cymatiosphaeroides yinii sp. nov., Dicrospinasphaera zhangii gen. et sp. nov., Echinosphaeridium maximum (Yin, 1987) Knoll, 1992, Ericiasphaera sp., ?Ericiasphaera sp., Hocosphaeridium scaberfacium Zang & Walter, 1992, Meghystrichosphaeridium sp., Meghystrichosphaeridium wenganensis Chen & Liu, 1986, Polyhedrosphaeridium sp. The cyanobacteria and bacteria comprise Paratetraphycus giganteus Zhang, 1984, Gloeodiniopsis lamellosa (Schopf, 1968) Knoll & Golubic, 1979, Globophycus sp., Myxoc...","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"189-222"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619200","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59988515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-01-01DOI: 10.1080/03115519808619204
S. Hand
A new genus and species of Old World leaf-nosed bats is described from skull material collected from a Miocene limestone cave deposit at Riversleigh in northwestern Queensland. Riversleigha williamsi gen. et sp. nov. is one of nine hipposiderid species identified from the Bitesantennary Site deposit. Its phylogenetic relationships to other hipposiderids remain unclear but it probably represents an early branch of this Old World tropical family. It is a relatively large hipposiderid and at least some of its features suggest it was capable of consuming well-armoured beetles among other insect prey.
在昆士兰州西北部里弗斯利的中新世石灰岩洞穴沉积物中收集的头骨材料中描述了旧大陆叶鼻蝙蝠的一个新属和新种。Riversleigha williamsi gen. et sp. 11 .是在Bitesantennary Site沉积物中发现的9种海马科动物之一。它与其他海马体的系统发育关系尚不清楚，但它可能代表了这个旧大陆热带家族的一个早期分支。这是一种相对较大的马体动物，至少它的一些特征表明，它能够吃掉装甲良好的甲虫和其他昆虫猎物。
{"title":"Riversleigha williamsi gen. et sp. nov., a large Miocene hipposiderid (microchiroptera) from Riversleigh, Queensland","authors":"S. Hand","doi":"10.1080/03115519808619204","DOIUrl":"https://doi.org/10.1080/03115519808619204","url":null,"abstract":"A new genus and species of Old World leaf-nosed bats is described from skull material collected from a Miocene limestone cave deposit at Riversleigh in northwestern Queensland. Riversleigha williamsi gen. et sp. nov. is one of nine hipposiderid species identified from the Bitesantennary Site deposit. Its phylogenetic relationships to other hipposiderids remain unclear but it probably represents an early branch of this Old World tropical family. It is a relatively large hipposiderid and at least some of its features suggest it was capable of consuming well-armoured beetles among other insect prey.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"26 1","pages":"259-276"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619204","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59988316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1997-01-01DOI: 10.1080/03115519708619168
R. Damiani, A. Warren
The holotype and paratype of the capitosaurid Parotosuchus wadei (Cosgriff, 1972) from the Terrigal Formation (Narrabeen Group) near Sydney are re-examined. It is demonstrated that the holotype skull is an immature individual of the genus Parotosuchus, and that it exhibits no characters that are derived beyond the generic level. The paratype specimen consists of an impression of the skull, mandibles and dermal pectoral girdle but is largely indeterminate to family. P. wadei is therfore a nomen dubium.
{"title":"Re-interpretation of Parotosuchus wadei Cosgriff, a capitosaurid from the Triassic Narrabeen Group at Gosford, New South Wales, with comments on its growth stage","authors":"R. Damiani, A. Warren","doi":"10.1080/03115519708619168","DOIUrl":"https://doi.org/10.1080/03115519708619168","url":null,"abstract":"The holotype and paratype of the capitosaurid Parotosuchus wadei (Cosgriff, 1972) from the Terrigal Formation (Narrabeen Group) near Sydney are re-examined. It is demonstrated that the holotype skull is an immature individual of the genus Parotosuchus, and that it exhibits no characters that are derived beyond the generic level. The paratype specimen consists of an impression of the skull, mandibles and dermal pectoral girdle but is largely indeterminate to family. P. wadei is therfore a nomen dubium.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"21 1","pages":"281-289"},"PeriodicalIF":1.3,"publicationDate":"1997-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519708619168","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59986889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1997-01-01DOI: 10.1080/03115519708619169
E. Kurochkin, R. Molnar
Remains of tiny enantiomithines from the Early Cretaceous (Albian) of Queensland, Australia, include a proximal tibiotarsus and a cervical vertebra consistent in size with Nanantius eos (Molnar 1986). The new tibiotarsus differs in detail from the type and so probably does not pertain to the same species. The vertebra is platycoelous with a tendency toward opisthocoely. It shows that Enantiomithes had distinctive process of vertebral development, different from that in true birds which produces heterocoelous vertebrae. The excellent preservation of the vertebra permits the accurate orientation of fragmentary vertebrae in some Enantiomithes known from other continents. It also corroborates both the existence of Enantiomithines in the Early Cretaceous of Australia and the small size of the genus Nanantius.
{"title":"New material of enantiornithine birds from the Early Cretaceous of Australia","authors":"E. Kurochkin, R. Molnar","doi":"10.1080/03115519708619169","DOIUrl":"https://doi.org/10.1080/03115519708619169","url":null,"abstract":"Remains of tiny enantiomithines from the Early Cretaceous (Albian) of Queensland, Australia, include a proximal tibiotarsus and a cervical vertebra consistent in size with Nanantius eos (Molnar 1986). The new tibiotarsus differs in detail from the type and so probably does not pertain to the same species. The vertebra is platycoelous with a tendency toward opisthocoely. It shows that Enantiomithes had distinctive process of vertebral development, different from that in true birds which produces heterocoelous vertebrae. The excellent preservation of the vertebra permits the accurate orientation of fragmentary vertebrae in some Enantiomithes known from other continents. It also corroborates both the existence of Enantiomithines in the Early Cretaceous of Australia and the small size of the genus Nanantius.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"21 1","pages":"291-297"},"PeriodicalIF":1.3,"publicationDate":"1997-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519708619169","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59987059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1997-01-01DOI: 10.1080/03115519708619170
P. Quilty, S. Shafik, C. Jenkins, J. Keene
Early Paleocene marine sediments are recorded from a single dredge sample taken from the continental slope (3533–3306 m) off the central coast of New South Wales. They probably belong to the Early Paleocene NP4 calcareous nannoplankton zone (P1c or P1d/P2 in standard formainiferal zonal terms) and thus are the first Palaeogene marine rocks known from the region and the first record of marine biota of this age from the Australian margin other than Western Australia. The age is based on analysis of calcareous nannofossils. The sediment accumulated in very shallow, warm, fully marine conditions, apparently off a coast of periodically low runoff, and the fauna lacks any planktonic foraminiferal species. While it is domainated by several typically Paleocene benthic forms well known from southern and southwestern Australia, several otherwise typical Australian forms appear to be absent. Fabiania (the new species F. macgowrani) is recorded for the first time from Australia, apparently the earliest known occurren...
{"title":"An Early Cainozoic (Paleocene) foraminiferal fauna with Fabiania from offshore eastern Australia","authors":"P. Quilty, S. Shafik, C. Jenkins, J. Keene","doi":"10.1080/03115519708619170","DOIUrl":"https://doi.org/10.1080/03115519708619170","url":null,"abstract":"Early Paleocene marine sediments are recorded from a single dredge sample taken from the continental slope (3533–3306 m) off the central coast of New South Wales. They probably belong to the Early Paleocene NP4 calcareous nannoplankton zone (P1c or P1d/P2 in standard formainiferal zonal terms) and thus are the first Palaeogene marine rocks known from the region and the first record of marine biota of this age from the Australian margin other than Western Australia. The age is based on analysis of calcareous nannofossils. The sediment accumulated in very shallow, warm, fully marine conditions, apparently off a coast of periodically low runoff, and the fauna lacks any planktonic foraminiferal species. While it is domainated by several typically Paleocene benthic forms well known from southern and southwestern Australia, several otherwise typical Australian forms appear to be absent. Fabiania (the new species F. macgowrani) is recorded for the first time from Australia, apparently the earliest known occurren...","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"21 1","pages":"299-315"},"PeriodicalIF":1.3,"publicationDate":"1997-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519708619170","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59987206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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