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| 1. |
Middle Ordovician faunal spatial differentiation in Baltoscandia and the Appalachians |
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Alcheringa: An Australasian Journal of Palaeontology,
Volume 4,
Issue 2,
1980,
Page 89-110
Valdar Jaanusson,
StigM. Bergström,
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摘要:
The distributional differentiation of Baltoscandian Middle Ordovician shelly faunas in terms of confacies belts has a counterpart in the southern and central Appalachians, where three belts, parallel to the mountain chain, are distinguished: the Blount, Tazewell and Lee Confacies Belts. As in Baltoscandia, the boundaries between these belts are sharp. The Blount Belt high-diversity shelly macrofauna is closely similar to Scoto-Appalachian faunas of northeastern Ireland and southwestern Scotland (Girvan). The Lee Belt fauna is virtually the same as that of the North American Midcontinent, and that of the Tazewell Belt is transitional between those of the Blount and Lee Belts. The ecological factors causing the confacies differentiation are currently not clearly understood but the differentiation was evidently not due to a single factor such as water depth, although this factor was apparently important for second-order differentiation (biofacies) within a confacies belt. The spatial differentiation patterns of the shelly, graptolite, and conodont faunas do not always coincide, suggesting that the factors controlling the distribution were largely specific for each fauna.
ISSN:0311-5518
DOI:10.1080/03115518008619641
出版商:Taylor & Francis Group
年代:1980
数据来源: Taylor
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| 2. |
Australian Middle Cambrian molluscs: corrections and additions |
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Alcheringa: An Australasian Journal of Palaeontology,
Volume 4,
Issue 2,
1980,
Page 111-113
Bruce Runnegar,
PeterA. Jell,
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摘要:
The Cambrian MonoplacophoraAnabarella, MellopegmaandStenothecawere incorrectly referred to the Family Procarinariidae Wenz 1938 by Runnegar & Jell (1976) because Horný (1964a) has shown thatProcarinariais a bivalve. A new family, Stenothecidae, is therefore proposed. Also, two genera of Cambrian pelagiellids described by Horný (1964b) were omitted from a discussion of the family in Runnegar & Jell (1976).
ISSN:0311-5518
DOI:10.1080/03115518008619642
出版商:Taylor & Francis Group
年代:1980
数据来源: Taylor
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| 3. |
Incisions, breakages and charring, some probably man-made, in fossil bones from Mammoth Cave, Western Australia |
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Alcheringa: An Australasian Journal of Palaeontology,
Volume 4,
Issue 2,
1980,
Page 115-131
Michael Archer,
IanM. Crawford,
Duncan Merrilees,
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摘要:
Two small patches of richly fossiliferous deposit in Mammoth Cave, excavated early this century, yielded tooth-bearing and post-cranial material. We have studied a notched tibia, various broken femurs and charred bones, many of which are attributable to extinct taxa, and have concluded that deliberate action by Aboriginals is the most probable explantation for their condition.
ISSN:0311-5518
DOI:10.1080/03115518008619643
出版商:Taylor & Francis Group
年代:1980
数据来源: Taylor
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| 4. |
The multielement genusApatognathusfrom the Late Devonian of the Canning Basin, Western Australia |
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Alcheringa: An Australasian Journal of Palaeontology,
Volume 4,
Issue 2,
1980,
Page 133-152
RobertS. Nicoll,
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摘要:
The multielement composition of the conodont genusApatognathusBranson & Mehl 1934 consists of 7 element types (M, Sa, Sc, Sb, Sd, Pa and Pb). Four taxa ofApatognathusare recognized from the Famennian part of the Late Devonian reef complex of the Canning Basin, Western Australia.A. varians variansBranson & Mehl forms the model for theApatognathusapparatus.A. varians klapperiDruce,A. provarianssp. nov., andA.sp. nov. A. are recognized as partial apparatuses with 5, 3 and 2 element types respectively.
ISSN:0311-5518
DOI:10.1080/03115518008619644
出版商:Taylor & Francis Group
年代:1980
数据来源: Taylor
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