Pub Date : 1999-01-01DOI: 10.1080/03115519908619339
L. Jeppsson, Rikard Anehus
The density of conodont elements is between 2.90 g cm-3 and 3.04 g cm-3, probably very close to 3.00. Removing all traces of dolomite and calcium carbonate before density separation keeps the viscosity of sodium polytungstate solution low enough to make it useful for density separations as high as 3.04 g cm-3. In most cases, a nearly clean phosphatic fraction can be produced by adding this method to existing standard techniques. The oxidizing technique to remove pyrite is also discussed. In all kinds of physical concentration work consideration of the “bulk density” is very important for good results, especially regarding coniforms.
牙形石元素密度在2.90 ~ 3.04 g cm-3之间，可能非常接近3.00。在密度分离之前去除所有白云石和碳酸钙的痕迹，使多钨酸钠溶液的粘度足够低，使其可用于高达3.04 g cm-3的密度分离。在大多数情况下，通过将该方法添加到现有的标准技术中，可以产生几乎干净的磷酸馏分。并对氧化法脱除黄铁矿的工艺进行了探讨。在各种物理浓缩工作中，考虑“堆积密度”对于取得好的结果是非常重要的，特别是对于一致性。
{"title":"A new technique to separate conodont elements from heavier minerals","authors":"L. Jeppsson, Rikard Anehus","doi":"10.1080/03115519908619339","DOIUrl":"https://doi.org/10.1080/03115519908619339","url":null,"abstract":"The density of conodont elements is between 2.90 g cm-3 and 3.04 g cm-3, probably very close to 3.00. Removing all traces of dolomite and calcium carbonate before density separation keeps the viscosity of sodium polytungstate solution low enough to make it useful for density separations as high as 3.04 g cm-3. In most cases, a nearly clean phosphatic fraction can be produced by adding this method to existing standard techniques. The oxidizing technique to remove pyrite is also discussed. In all kinds of physical concentration work consideration of the “bulk density” is very important for good results, especially regarding coniforms.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"23 1","pages":"57-62"},"PeriodicalIF":1.3,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519908619339","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59989832","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 : 1999-01-01DOI: 10.1080/03115519908619517
J. Stilwell
The Cretaceous scaphopod (molluscan) fauna of mainland Australia is characterised by a rather depauperate and poorly known assemblage of five species: dentaliids Dentalium (Dentalium) n. sp. A (probably Aptian), Dentalium (Dentalium) n. sp. B (Cenomanian), and Dentalium (Dentalium) n. sp. C (Maastrichtian); fustiariid Fustiaria wollumbillaensis (Etheridge, Jr., 1892) (Late Aptian-Albian?); and laevidentaliid Laevidentalium cretaustralium n. sp. (Late Albian). Each species is endemic to either the Great Artesian Basin or Carnarvon Basin of Australia. A probable sixth species is recorded from Cenomanian deposits of Bathurst Island, but the affinity of this taxon is uncertain. In some shell beds of the Allaru Formation, scaphopods dominate the preserved macrobenthos. Although at species level the fauna is endemic, strongly cosmopolitan genus level links of the scaphopods mirror that of other groups of molluscs (bivalves, gastropods, cephalopods), indicating derivation from evolutionary separation from pre-ex...
澳大利亚大陆白垩纪的蹼足动物(软体动物)动物群的特征是一个相当不发达和鲜为人知的五种组合:Dentalium (Dentalium) n. sp. a(可能是Aptian)， Dentalium (Dentalium) n. sp. B (Cenomanian)和Dentalium (Dentalium) n. sp. C (Maastrichtian);Fustiaria wollumbillaensis (Etheridge, Jr.， 1892)(晚Aptian-Albian?);和Laevidentalium cretaustralium n. sp.(晚Albian)。每种物种都是澳大利亚大自流盆地或卡纳文盆地的特有物种。在巴瑟斯特岛的Cenomanian沉积物中可能记录了第六种，但该分类群的亲缘性尚不确定。在Allaru组的一些壳层中，保存的大型底栖动物以舟形类为主。尽管在物种水平上，该动物群是地方性的，但在强世界性的属水平上，桨足类动物的联系反映了其他软体动物群(双壳类、腹足类、头足类)的联系，这表明它们是从前物种进化分离出来的。
{"title":"Cretaceous Scaphopoda (Mollusca) of Australia and their palaeobiogeographic significance","authors":"J. Stilwell","doi":"10.1080/03115519908619517","DOIUrl":"https://doi.org/10.1080/03115519908619517","url":null,"abstract":"The Cretaceous scaphopod (molluscan) fauna of mainland Australia is characterised by a rather depauperate and poorly known assemblage of five species: dentaliids Dentalium (Dentalium) n. sp. A (probably Aptian), Dentalium (Dentalium) n. sp. B (Cenomanian), and Dentalium (Dentalium) n. sp. C (Maastrichtian); fustiariid Fustiaria wollumbillaensis (Etheridge, Jr., 1892) (Late Aptian-Albian?); and laevidentaliid Laevidentalium cretaustralium n. sp. (Late Albian). Each species is endemic to either the Great Artesian Basin or Carnarvon Basin of Australia. A probable sixth species is recorded from Cenomanian deposits of Bathurst Island, but the affinity of this taxon is uncertain. In some shell beds of the Allaru Formation, scaphopods dominate the preserved macrobenthos. Although at species level the fauna is endemic, strongly cosmopolitan genus level links of the scaphopods mirror that of other groups of molluscs (bivalves, gastropods, cephalopods), indicating derivation from evolutionary separation from pre-ex...","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"23 1","pages":"215-226"},"PeriodicalIF":1.3,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519908619517","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59990460","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 : 1999-01-01DOI: 10.1080/03115519908527810
T. Leonova, Mohd. Shafeea Leman, G. Shi
This paper describes a single specimen of Metalegoceras sp. recently discovered from the upper part of the Singa Formation at Batu Asah on the main Langkawi Island off the northwestern coast of Peninsular Malaysia. The discovery represents the first report of a Permian ammonoid from the island and from the Singa Formation and confirms a Sakmarian (Early Permian) age for this part of the formation suggested by brachiopods.
{"title":"Discovery of an Early Permian (Late Sakmarian) ammonoid from Langkawi Island, Malaysia","authors":"T. Leonova, Mohd. Shafeea Leman, G. Shi","doi":"10.1080/03115519908527810","DOIUrl":"https://doi.org/10.1080/03115519908527810","url":null,"abstract":"This paper describes a single specimen of Metalegoceras sp. recently discovered from the upper part of the Singa Formation at Batu Asah on the main Langkawi Island off the northwestern coast of Peninsular Malaysia. The discovery represents the first report of a Permian ammonoid from the island and from the Singa Formation and confirms a Sakmarian (Early Permian) age for this part of the formation suggested by brachiopods.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"23 1","pages":"277-281"},"PeriodicalIF":1.3,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519908527810","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59989128","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 : 1999-01-01DOI: 10.1080/03115519908619513
T. Winchester-Seeto, K. Bell
Early to Late Devonian (Emsian to late Famennian) organic walled microfossils were recovered from nineteen localities throughout the Tamworth Belt, northern New South Wales. The microfossil assemblages included poorly preserved chitinozoans and scolecodonts, spores and moderately well preserved foraminiferal linings. Fourteen species of foraminiferal linings from six genera are documented. At least three species of foramininferal linings (Inauris tubulata, Saccammina mea and Thurammina pustulosa) show potential for global correlation. Saccammina sp. cf. S. ampullacea and Thurammina mirrka may have application for correlation within Australia.
在新南威尔士州北部Tamworth带的19个地点发现了早至晚泥盆世(Emsian至晚famenian)有机壁微化石。微化石组合包括保存较差的几丁质动物和scolecodonts，孢子和保存较好的有孔虫衬里。记录了6属的14种有孔虫衬里。至少有三种有孔虫内层(Inauris tubulata, sacammina mea和Thurammina pustlosa)显示出全球相关性的潜力。木犀草属(sacammina sp. cf. S. ampullacea)和木犀草属(Thurammina mirrka)可能在澳大利亚有亲缘关系。
{"title":"Foraminiferal linings and other organic walled microfossils from the Devonian of the Tamworth Belt, northern New South Wales, Australia","authors":"T. Winchester-Seeto, K. Bell","doi":"10.1080/03115519908619513","DOIUrl":"https://doi.org/10.1080/03115519908619513","url":null,"abstract":"Early to Late Devonian (Emsian to late Famennian) organic walled microfossils were recovered from nineteen localities throughout the Tamworth Belt, northern New South Wales. The microfossil assemblages included poorly preserved chitinozoans and scolecodonts, spores and moderately well preserved foraminiferal linings. Fourteen species of foraminiferal linings from six genera are documented. At least three species of foramininferal linings (Inauris tubulata, Saccammina mea and Thurammina pustulosa) show potential for global correlation. Saccammina sp. cf. S. ampullacea and Thurammina mirrka may have application for correlation within Australia.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"23 1","pages":"155-175"},"PeriodicalIF":1.3,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519908619513","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59990132","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 : 1999-01-01DOI: 10.1080/03115519908619518
S. Ahyong, M. Ebach
{"title":"First occurrence of a subfossil stomatopod crustacean from Australia","authors":"S. Ahyong, M. Ebach","doi":"10.1080/03115519908619518","DOIUrl":"https://doi.org/10.1080/03115519908619518","url":null,"abstract":"","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"70 1","pages":"227-228"},"PeriodicalIF":1.3,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519908619518","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59990477","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 : 1999-01-01DOI: 10.1080/03115519908619337
J. Brammall
Djaludjangi yadjana sp. nov. represents a previously unknown genus of petauroid possum from Riversleigh in northwestern Queensland. Of known phalangeridans Djaludjangi most closely resembles the Petauridae, but lacks synapomorphies previously used to define that family. Although considered likely a plesiomorphic petaurid, D. yadjana is referred here to Petauroidea: incertae sedis, pending comprehensive revision of phalangeriform dental character state distributions. Small possum diversity at Riversleigh indicates a complex and finely partitioned environment such as that found in present-day tropical forests; the discovery at Riversleigh of Australia's first Tertiary dactylopsiline species also argues for a rainforest palaeohabitat.
{"title":"A new petauroid possum from the Oligo-Miocene of Riversleigh, northwestern Queensland","authors":"J. Brammall","doi":"10.1080/03115519908619337","DOIUrl":"https://doi.org/10.1080/03115519908619337","url":null,"abstract":"Djaludjangi yadjana sp. nov. represents a previously unknown genus of petauroid possum from Riversleigh in northwestern Queensland. Of known phalangeridans Djaludjangi most closely resembles the Petauridae, but lacks synapomorphies previously used to define that family. Although considered likely a plesiomorphic petaurid, D. yadjana is referred here to Petauroidea: incertae sedis, pending comprehensive revision of phalangeriform dental character state distributions. Small possum diversity at Riversleigh indicates a complex and finely partitioned environment such as that found in present-day tropical forests; the discovery at Riversleigh of Australia's first Tertiary dactylopsiline species also argues for a rainforest palaeohabitat.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"23 1","pages":"31-50"},"PeriodicalIF":1.3,"publicationDate":"1999-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519908619337","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59989964","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: 10.1080/03115519808619238
J. Stilwell
The Cretaceous Mollusca (Bivalvia, Gastropoda, Scaphopoda) from the Chatham Islands, New Zealand consists of a moderately diverse faunule of 37 species in the Kahuitara Tuff of Pitt Island. At least 16 (c.43%) of the taxa are conspecific with mainland New Zealand species and at least 15 (c.41%) taxa are endemic to Chatham Islands. New species proposed are Crenella n. sp., Chlamys (Lyriochlamys) n. sp., Chlamys s. l. n. sp., Camptonectes n. sp., Eburneopecten freneixae n. sp., Dimyodon n. sp., Purpurocardia n. sp., Lahillia n. sp., Solyma flemingae n. sp., Brookula s. l. n. sp., Calliomphalus s. l. n. sp., Pyrgulifera kahuitara n. sp., and Ageria? n. sp. Most taxa (c.41%) are epifaunal suspension feeding bivalves and dominate the Cretaceous macrofauna. Less dominant are infaunal suspension feeding bivalves (30%). Epifaunal browsers (c.14%), deposit feeders (8%) and carnivores (5%) are minor components. An open marine, shallow shelf environment is advocated. A latest Cretaceous (Campanian?-Maastrichtian) ag...
来自新西兰查塔姆群岛的白垩纪软体动物(双壳纲、腹足纲、蹼足纲)由皮特岛Kahuitara凝灰岩中的37种中等多样性的动物群组成。至少有16个(c.43%)分类群与新西兰大陆物种同种，至少有15个(c.41%)分类群是查塔姆群岛特有的。提出的新种有Crenella n. sp、Chlamys (Lyriochlamys) n. sp、Chlamys s. l.n . sp、Camptonectes n. sp、Eburneopecten freneixae n. sp、Dimyodon n. sp、purpurrocardia n. sp、Lahillia n. sp、Solyma flemingae n. sp、Brookula s. l.n . sp、Calliomphalus s. l.n . sp、Pyrgulifera kahuitara n. sp、Ageria?多数分类群(41%)为足部悬浮食性双壳类，占白垩纪大型动物群的主导地位。较不占优势的是水生悬浮食性双壳类(30%)。下层捕食者(约14%)、沉积物捕食者(8%)和食肉动物(5%)是次要组成部分。提倡开放的海洋浅陆架环境。一个最新的白垩纪(坎帕尼亚-马斯特里赫特)…
{"title":"Late Cretaceous Mollusca from the Chatham Islands, New Zealand","authors":"J. Stilwell","doi":"10.1080/03115519808619238","DOIUrl":"https://doi.org/10.1080/03115519808619238","url":null,"abstract":"The Cretaceous Mollusca (Bivalvia, Gastropoda, Scaphopoda) from the Chatham Islands, New Zealand consists of a moderately diverse faunule of 37 species in the Kahuitara Tuff of Pitt Island. At least 16 (c.43%) of the taxa are conspecific with mainland New Zealand species and at least 15 (c.41%) taxa are endemic to Chatham Islands. New species proposed are Crenella n. sp., Chlamys (Lyriochlamys) n. sp., Chlamys s. l. n. sp., Camptonectes n. sp., Eburneopecten freneixae n. sp., Dimyodon n. sp., Purpurocardia n. sp., Lahillia n. sp., Solyma flemingae n. sp., Brookula s. l. n. sp., Calliomphalus s. l. n. sp., Pyrgulifera kahuitara n. sp., and Ageria? n. sp. Most taxa (c.41%) are epifaunal suspension feeding bivalves and dominate the Cretaceous macrofauna. Less dominant are infaunal suspension feeding bivalves (30%). Epifaunal browsers (c.14%), deposit feeders (8%) and carnivores (5%) are minor components. An open marine, shallow shelf environment is advocated. A latest Cretaceous (Campanian?-Maastrichtian) ag...","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"29-85"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619238","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59988688","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: 10.1080/03115519808619330
R. Mukherjee, D. Sengupta
Two new species of the genus Parotosuchus, (Family Capitosauridae) with semi-closed otic notches, from the Denwa Formation, Satpura Gondwana Basin, India are described from well preserved, complete skulls. Capitosaurids from India were known from fragmentary material only. The relationship among the two new species and other related forms is briefly discussed.
{"title":"New capitosaurid amphibians from the Triassic Denwa Formation of the Satpura Gondwana Basin, central India","authors":"R. Mukherjee, D. Sengupta","doi":"10.1080/03115519808619330","DOIUrl":"https://doi.org/10.1080/03115519808619330","url":null,"abstract":"Two new species of the genus Parotosuchus, (Family Capitosauridae) with semi-closed otic notches, from the Denwa Formation, Satpura Gondwana Basin, India are described from well preserved, complete skulls. Capitosaurids from India were known from fragmentary material only. The relationship among the two new species and other related forms is briefly discussed.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"162 1","pages":"317-327"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619330","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59988896","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: 10.1080/03115519808619194
P. Schäfer, J. Grant‐Mackie
Revision of type and additional material of Upper Triassic colonial organisms from New Zealand, New Caledonia, Timor, Siberia, Canada and Chile, previously interpreted as Bryozoa or Cnidaria, provides new insights into their palaeobiology, systematic affinity and palaeobiogeography. Heterastridium conglobatum Reuss remains of uncertain hydrozoan affinity, and could be spheractinoidean, hydroidean, or even milleporine. H. conglobatum disciforme n. subsp. (=“forma” disciforme sensu Gerth) is described from New Zealand. The distribution of Heterastridium in the Murihiku and Torlesse terranes of New Zealand-New Caledonia is documented, and it is recorded as ranging through the Middle and Late Norian (Rutherfordi, Columbianus, and Cordilleranus Zones). Its extreme rarity in the Torlesse terrane is thought to be the result of unsuitable facies. “Monotrypella” timorica Vinassa de Regny, described as a bryozoan, is a calcareous demosponge of uncertain family and genus. “M” maorica Wilckens is shown to be the seni...
对来自新西兰、新喀里多尼亚、东帝汶、西伯利亚、加拿大和智利的上三叠统群生生物(以前被解释为苔藓虫或刺胞虫)的类型和附加材料进行了修订，为其古生物学、系统亲缘性和古生物地理学提供了新的见解。长珠杂交种仍具有不确定的水螅类亲和性，可能是球形、水螅类，甚至是千孔类。长叶棘球绦虫(= " forma " disformme sensu Gerth)产于新西兰。Heterastridium分布在新西兰-新喀里多尼亚的Murihiku和Torlesse地区，记录范围为中晚期Norian (Rutherfordi, Columbianus和Cordilleranus带)。它在托勒斯地层中极为罕见被认为是不合适的相的结果。“Monotrypella”timorica Vinassa de Regny，被描述为苔藓虫，是一种不确定科属的钙质蠕形海绵。“M”毛里卡·威尔肯斯被证明是资深的……
{"title":"Revised systematics and palaeobiogeography of some Late Triassic colonial invertebrates from the Pacific region","authors":"P. Schäfer, J. Grant‐Mackie","doi":"10.1080/03115519808619194","DOIUrl":"https://doi.org/10.1080/03115519808619194","url":null,"abstract":"Revision of type and additional material of Upper Triassic colonial organisms from New Zealand, New Caledonia, Timor, Siberia, Canada and Chile, previously interpreted as Bryozoa or Cnidaria, provides new insights into their palaeobiology, systematic affinity and palaeobiogeography. Heterastridium conglobatum Reuss remains of uncertain hydrozoan affinity, and could be spheractinoidean, hydroidean, or even milleporine. H. conglobatum disciforme n. subsp. (=“forma” disciforme sensu Gerth) is described from New Zealand. The distribution of Heterastridium in the Murihiku and Torlesse terranes of New Zealand-New Caledonia is documented, and it is recorded as ranging through the Middle and Late Norian (Rutherfordi, Columbianus, and Cordilleranus Zones). Its extreme rarity in the Torlesse terrane is thought to be the result of unsuitable facies. “Monotrypella” timorica Vinassa de Regny, described as a bryozoan, is a calcareous demosponge of uncertain family and genus. “M” maorica Wilckens is shown to be the seni...","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"87-122"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619194","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59987808","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: 10.1080/03115519808619199
Judith H. Field, W. Boles
Fossil remains of Genyornis newtoni and Dromaius novaehollandiae recovered from horizons at Cuddie Springs, in central northern New South Wales, are securely dated to greater than 30,000 b.p. Genyornis newtoni and D. novaehollandiae were found in sequential layers in association with artefacts of human occupation and other species of megafauna. Palaeoenvironmental information indicates the specimens of G. newtoni were deposited when the region supported an arid vegetation community, principally chenopod shrubland with scattered Eucalyptus and Acacia species. The appearance of Dromaius and disappearance of Genyornis coincided with a local shift to grasslands and the drying of the Cuddie Springs lake. New evidence is presented for the persistence of Genyornis in the arid zone during the lead up to the Last Glacial Maximum.
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