New fossil worms from the Lower Cambrian of the Kinzers Formation, Pennsylvania, with some comments on Burgess Shale-type preservation
Two new fossil worms are described from the Lower Cambrian Kinzers Formation of southeast Pennsylvania. Both are unique specimens. Kinzeria crinita new genus and species has a body divided into three regions. The head bears a prominent set of elongate tentacles, presumably employed for feeding. The...
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Language: | English |
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Cambridge University Press (CUP)
1999
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Online Access: | http://dx.doi.org/10.1017/s0022336000027918 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000027918 |
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crcambridgeupr:10.1017/s0022336000027918 2024-09-15T18:09:59+00:00 New fossil worms from the Lower Cambrian of the Kinzers Formation, Pennsylvania, with some comments on Burgess Shale-type preservation Capdevila, D. Garcia-Bellido Morris, S. Conway 1999 http://dx.doi.org/10.1017/s0022336000027918 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000027918 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of Paleontology volume 73, issue 3, page 394-402 ISSN 0022-3360 1937-2337 journal-article 1999 crcambridgeupr https://doi.org/10.1017/s0022336000027918 2024-07-31T04:04:26Z Two new fossil worms are described from the Lower Cambrian Kinzers Formation of southeast Pennsylvania. Both are unique specimens. Kinzeria crinita new genus and species has a body divided into three regions. The head bears a prominent set of elongate tentacles, presumably employed for feeding. The elongate trunk tapers slightly in a posterior direction. It contains a prominent intestinal tract, the contents of which indicate a deposit feeding habit. The tail is an expanded structure, with either a spatulate or sagittate outline. The mode of life of K. crinita is uncertain, but the animal may have been semi-sedentary. Atalotaenia adela new genus and species is more poorly known, lacking the anterior. The preserved body is vermiform, with external annulations and a rounded posterior. There is a prominent internal strand, consisting of a probable intestine and an associated fibrous unit, possibly representing muscles. This worm may have been infaunal. These discoveries extend further our understanding of the ancient diversity of Laurentian Burgess Shale-type faunas. In common with the Burgess Shale itself and the Sirius Passet fauna (Peary Land, Greenland) the location of fossil-Lagerstätte [see Shields (1998) for a discussion of the terminology of Lagerstätten] of the Kinzers Formation adjacent to a prominent escarpment reinforces earlier evidence of the paleotopography exerting an important control on the distribution of Burgess Shale-type faunas. Whether this is a result of localized faunal abundances or taphonomic control is, however, uncertain. Article in Journal/Newspaper Greenland Peary Land Cambridge University Press Journal of Paleontology 73 3 394 402 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Two new fossil worms are described from the Lower Cambrian Kinzers Formation of southeast Pennsylvania. Both are unique specimens. Kinzeria crinita new genus and species has a body divided into three regions. The head bears a prominent set of elongate tentacles, presumably employed for feeding. The elongate trunk tapers slightly in a posterior direction. It contains a prominent intestinal tract, the contents of which indicate a deposit feeding habit. The tail is an expanded structure, with either a spatulate or sagittate outline. The mode of life of K. crinita is uncertain, but the animal may have been semi-sedentary. Atalotaenia adela new genus and species is more poorly known, lacking the anterior. The preserved body is vermiform, with external annulations and a rounded posterior. There is a prominent internal strand, consisting of a probable intestine and an associated fibrous unit, possibly representing muscles. This worm may have been infaunal. These discoveries extend further our understanding of the ancient diversity of Laurentian Burgess Shale-type faunas. In common with the Burgess Shale itself and the Sirius Passet fauna (Peary Land, Greenland) the location of fossil-Lagerstätte [see Shields (1998) for a discussion of the terminology of Lagerstätten] of the Kinzers Formation adjacent to a prominent escarpment reinforces earlier evidence of the paleotopography exerting an important control on the distribution of Burgess Shale-type faunas. Whether this is a result of localized faunal abundances or taphonomic control is, however, uncertain. |
format |
Article in Journal/Newspaper |
author |
Capdevila, D. Garcia-Bellido Morris, S. Conway |
spellingShingle |
Capdevila, D. Garcia-Bellido Morris, S. Conway New fossil worms from the Lower Cambrian of the Kinzers Formation, Pennsylvania, with some comments on Burgess Shale-type preservation |
author_facet |
Capdevila, D. Garcia-Bellido Morris, S. Conway |
author_sort |
Capdevila, D. Garcia-Bellido |
title |
New fossil worms from the Lower Cambrian of the Kinzers Formation, Pennsylvania, with some comments on Burgess Shale-type preservation |
title_short |
New fossil worms from the Lower Cambrian of the Kinzers Formation, Pennsylvania, with some comments on Burgess Shale-type preservation |
title_full |
New fossil worms from the Lower Cambrian of the Kinzers Formation, Pennsylvania, with some comments on Burgess Shale-type preservation |
title_fullStr |
New fossil worms from the Lower Cambrian of the Kinzers Formation, Pennsylvania, with some comments on Burgess Shale-type preservation |
title_full_unstemmed |
New fossil worms from the Lower Cambrian of the Kinzers Formation, Pennsylvania, with some comments on Burgess Shale-type preservation |
title_sort |
new fossil worms from the lower cambrian of the kinzers formation, pennsylvania, with some comments on burgess shale-type preservation |
publisher |
Cambridge University Press (CUP) |
publishDate |
1999 |
url |
http://dx.doi.org/10.1017/s0022336000027918 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022336000027918 |
genre |
Greenland Peary Land |
genre_facet |
Greenland Peary Land |
op_source |
Journal of Paleontology volume 73, issue 3, page 394-402 ISSN 0022-3360 1937-2337 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0022336000027918 |
container_title |
Journal of Paleontology |
container_volume |
73 |
container_issue |
3 |
container_start_page |
394 |
op_container_end_page |
402 |
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1810447587780591616 |