First record of live birth in Cretaceous ichthyosaurs: closing an 80 million year gap.
New fossils of embryonic ichthyosaurs are both the geologically youngest and the physically smallest known ichthyosaur embryos. The embryos are articulated, though only partially preserved, and are located within the body cavity of an adult, presumably the mother. The embryos and adult were found in...
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ftpubmed:oai:pubmedcentral.nih.gov:1698021 2023-05-15T16:33:49+02:00 First record of live birth in Cretaceous ichthyosaurs: closing an 80 million year gap. Maxwell, Erin E Caldwell, Michael W 2003-08-07 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1698021 http://www.ncbi.nlm.nih.gov/pubmed/12952650 https://doi.org/10.1098/rsbl.2003.0029 en eng http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1698021 http://www.ncbi.nlm.nih.gov/pubmed/12952650 http://dx.doi.org/10.1098/rsbl.2003.0029 Research Article Text 2003 ftpubmed https://doi.org/10.1098/rsbl.2003.0029 2013-08-31T12:52:56Z New fossils of embryonic ichthyosaurs are both the geologically youngest and the physically smallest known ichthyosaur embryos. The embryos are articulated, though only partially preserved, and are located within the body cavity of an adult, presumably the mother. The embryos and adult were found in association with several other individuals of differing size classes, all of which appear to be a new taxon of Cretaceous ichthyosaur. The material was collected from units of the Loon River Formation, Hay River, Northwest Territories, Canada. The implications of this new material to ichthyosaurian reproductive biology are discussed. Text Hay River Northwest Territories PubMed Central (PMC) Canada Hay River ENVELOPE(-115.847,-115.847,60.787,60.787) Northwest Territories Proceedings of the Royal Society of London. Series B: Biological Sciences 270 suppl_1 |
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Research Article |
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Research Article Maxwell, Erin E Caldwell, Michael W First record of live birth in Cretaceous ichthyosaurs: closing an 80 million year gap. |
topic_facet |
Research Article |
description |
New fossils of embryonic ichthyosaurs are both the geologically youngest and the physically smallest known ichthyosaur embryos. The embryos are articulated, though only partially preserved, and are located within the body cavity of an adult, presumably the mother. The embryos and adult were found in association with several other individuals of differing size classes, all of which appear to be a new taxon of Cretaceous ichthyosaur. The material was collected from units of the Loon River Formation, Hay River, Northwest Territories, Canada. The implications of this new material to ichthyosaurian reproductive biology are discussed. |
format |
Text |
author |
Maxwell, Erin E Caldwell, Michael W |
author_facet |
Maxwell, Erin E Caldwell, Michael W |
author_sort |
Maxwell, Erin E |
title |
First record of live birth in Cretaceous ichthyosaurs: closing an 80 million year gap. |
title_short |
First record of live birth in Cretaceous ichthyosaurs: closing an 80 million year gap. |
title_full |
First record of live birth in Cretaceous ichthyosaurs: closing an 80 million year gap. |
title_fullStr |
First record of live birth in Cretaceous ichthyosaurs: closing an 80 million year gap. |
title_full_unstemmed |
First record of live birth in Cretaceous ichthyosaurs: closing an 80 million year gap. |
title_sort |
first record of live birth in cretaceous ichthyosaurs: closing an 80 million year gap. |
publishDate |
2003 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1698021 http://www.ncbi.nlm.nih.gov/pubmed/12952650 https://doi.org/10.1098/rsbl.2003.0029 |
long_lat |
ENVELOPE(-115.847,-115.847,60.787,60.787) |
geographic |
Canada Hay River Northwest Territories |
geographic_facet |
Canada Hay River Northwest Territories |
genre |
Hay River Northwest Territories |
genre_facet |
Hay River Northwest Territories |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1698021 http://www.ncbi.nlm.nih.gov/pubmed/12952650 http://dx.doi.org/10.1098/rsbl.2003.0029 |
op_doi |
https://doi.org/10.1098/rsbl.2003.0029 |
container_title |
Proceedings of the Royal Society of London. Series B: Biological Sciences |
container_volume |
270 |
container_issue |
suppl_1 |
_version_ |
1766023522076852224 |