First record of Harpagomyces (Eumycota, incertae sedis) in Cenozoic sediments, lower Colorado Basin, Argentina
- Autores
- Fernández, Ana L.; Grill, Silvia; Seifert, Keith; Bianchinotti, Virginia; Martínez, Gustavo Adolfo
- Año de publicación
- 2010
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- Harpagomyces Wilcz (Eumycota, incertae sedis) was registered in stratigraphic sections associated to archaeological sites in the Colorado Basin (Buenos Aires, Argentina). Since its description, no other record of this species appeared in literature, being the first appearance in the fossil record. Originally isolated from wastes, it was illustrated as having irregular structures with hook-like appendages that were described as conidia. We found simple and ramified filaments of thick-walled, pale brown, verrucose, cylindrical to somewhat doliform cells. Some cells bear one, two or rarely more lateral appendages, which were pale, thin-walled and smooth, taper to apex, and ended in two or three forked and pointed arms. The collected material agrees fairly well with Harpagomyces lomnickii Wilcz, recovered from late Pleistocene/Holocene La Salada and El Tigre archaeological sites. La Salada section is an outcrop where eolic sediments alternate with pedogenetic and lacustrine levels, the archaeological findings are restricted to the last 20cm section from the surface. In this sequence, Harpagomyces was recorded in sediments dated as old as 3564 years BP (OCR) at 72.5cm depth from the top. There, the pollen association registered corresponds to halophytic steppe with influence of the ecotone and/or the Patagonian steppe. El Tigre section consists of an alternation of eolic and fluvial facies associated with terraced levels and flood plains, involving the last 3000 cal. AP (OCR). Harpagomyces was registered in 12 palynological samples (181-1627 years BP, OCR) between 1.25cm and 2.05cm from the surface. The pollen association registered in this interval corresponds to halophytic steppe.
Simposio VI: Microfósiles del Mesozoico y Cenozoico de América del Sur y Antártida. Nuevas aplicaciones y problemáticas asociadas
Facultad de Ciencias Naturales y Museo - Materia
-
Ciencias Naturales
Paleontología
Harpagomyces (Eumycota, incertae sedis)
Cenozoic sediments
Lower Colorado Basin, Argentina - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/16689
Ver los metadatos del registro completo
id |
SEDICI_4dbe7f113a01126bc7cc8f4d310d6493 |
---|---|
oai_identifier_str |
oai:sedici.unlp.edu.ar:10915/16689 |
network_acronym_str |
SEDICI |
repository_id_str |
1329 |
network_name_str |
SEDICI (UNLP) |
spelling |
First record of Harpagomyces (Eumycota, incertae sedis) in Cenozoic sediments, lower Colorado Basin, ArgentinaFernández, Ana L.Grill, SilviaSeifert, KeithBianchinotti, VirginiaMartínez, Gustavo AdolfoCiencias NaturalesPaleontologíaHarpagomyces (Eumycota, incertae sedis)Cenozoic sedimentsLower Colorado Basin, ArgentinaHarpagomyces Wilcz (Eumycota, incertae sedis) was registered in stratigraphic sections associated to archaeological sites in the Colorado Basin (Buenos Aires, Argentina). Since its description, no other record of this species appeared in literature, being the first appearance in the fossil record. Originally isolated from wastes, it was illustrated as having irregular structures with hook-like appendages that were described as conidia. We found simple and ramified filaments of thick-walled, pale brown, verrucose, cylindrical to somewhat doliform cells. Some cells bear one, two or rarely more lateral appendages, which were pale, thin-walled and smooth, taper to apex, and ended in two or three forked and pointed arms. The collected material agrees fairly well with Harpagomyces lomnickii Wilcz, recovered from late Pleistocene/Holocene La Salada and El Tigre archaeological sites. La Salada section is an outcrop where eolic sediments alternate with pedogenetic and lacustrine levels, the archaeological findings are restricted to the last 20cm section from the surface. In this sequence, Harpagomyces was recorded in sediments dated as old as 3564 years BP (OCR) at 72.5cm depth from the top. There, the pollen association registered corresponds to halophytic steppe with influence of the ecotone and/or the Patagonian steppe. El Tigre section consists of an alternation of eolic and fluvial facies associated with terraced levels and flood plains, involving the last 3000 cal. AP (OCR). Harpagomyces was registered in 12 palynological samples (181-1627 years BP, OCR) between 1.25cm and 2.05cm from the surface. The pollen association registered in this interval corresponds to halophytic steppe.Simposio VI: Microfósiles del Mesozoico y Cenozoico de América del Sur y Antártida. Nuevas aplicaciones y problemáticas asociadasFacultad de Ciencias Naturales y Museo2010info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionResumenhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/16689enginfo:eu-repo/semantics/altIdentifier/isbn/978-987-95849-7-2info:eu-repo/semantics/reference/hdl/10915/25738info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:34:31Zoai:sedici.unlp.edu.ar:10915/16689Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:34:31.611SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
First record of Harpagomyces (Eumycota, incertae sedis) in Cenozoic sediments, lower Colorado Basin, Argentina |
title |
First record of Harpagomyces (Eumycota, incertae sedis) in Cenozoic sediments, lower Colorado Basin, Argentina |
spellingShingle |
First record of Harpagomyces (Eumycota, incertae sedis) in Cenozoic sediments, lower Colorado Basin, Argentina Fernández, Ana L. Ciencias Naturales Paleontología Harpagomyces (Eumycota, incertae sedis) Cenozoic sediments Lower Colorado Basin, Argentina |
title_short |
First record of Harpagomyces (Eumycota, incertae sedis) in Cenozoic sediments, lower Colorado Basin, Argentina |
title_full |
First record of Harpagomyces (Eumycota, incertae sedis) in Cenozoic sediments, lower Colorado Basin, Argentina |
title_fullStr |
First record of Harpagomyces (Eumycota, incertae sedis) in Cenozoic sediments, lower Colorado Basin, Argentina |
title_full_unstemmed |
First record of Harpagomyces (Eumycota, incertae sedis) in Cenozoic sediments, lower Colorado Basin, Argentina |
title_sort |
First record of Harpagomyces (Eumycota, incertae sedis) in Cenozoic sediments, lower Colorado Basin, Argentina |
dc.creator.none.fl_str_mv |
Fernández, Ana L. Grill, Silvia Seifert, Keith Bianchinotti, Virginia Martínez, Gustavo Adolfo |
author |
Fernández, Ana L. |
author_facet |
Fernández, Ana L. Grill, Silvia Seifert, Keith Bianchinotti, Virginia Martínez, Gustavo Adolfo |
author_role |
author |
author2 |
Grill, Silvia Seifert, Keith Bianchinotti, Virginia Martínez, Gustavo Adolfo |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Ciencias Naturales Paleontología Harpagomyces (Eumycota, incertae sedis) Cenozoic sediments Lower Colorado Basin, Argentina |
topic |
Ciencias Naturales Paleontología Harpagomyces (Eumycota, incertae sedis) Cenozoic sediments Lower Colorado Basin, Argentina |
dc.description.none.fl_txt_mv |
Harpagomyces Wilcz (Eumycota, incertae sedis) was registered in stratigraphic sections associated to archaeological sites in the Colorado Basin (Buenos Aires, Argentina). Since its description, no other record of this species appeared in literature, being the first appearance in the fossil record. Originally isolated from wastes, it was illustrated as having irregular structures with hook-like appendages that were described as conidia. We found simple and ramified filaments of thick-walled, pale brown, verrucose, cylindrical to somewhat doliform cells. Some cells bear one, two or rarely more lateral appendages, which were pale, thin-walled and smooth, taper to apex, and ended in two or three forked and pointed arms. The collected material agrees fairly well with Harpagomyces lomnickii Wilcz, recovered from late Pleistocene/Holocene La Salada and El Tigre archaeological sites. La Salada section is an outcrop where eolic sediments alternate with pedogenetic and lacustrine levels, the archaeological findings are restricted to the last 20cm section from the surface. In this sequence, Harpagomyces was recorded in sediments dated as old as 3564 years BP (OCR) at 72.5cm depth from the top. There, the pollen association registered corresponds to halophytic steppe with influence of the ecotone and/or the Patagonian steppe. El Tigre section consists of an alternation of eolic and fluvial facies associated with terraced levels and flood plains, involving the last 3000 cal. AP (OCR). Harpagomyces was registered in 12 palynological samples (181-1627 years BP, OCR) between 1.25cm and 2.05cm from the surface. The pollen association registered in this interval corresponds to halophytic steppe. Simposio VI: Microfósiles del Mesozoico y Cenozoico de América del Sur y Antártida. Nuevas aplicaciones y problemáticas asociadas Facultad de Ciencias Naturales y Museo |
description |
Harpagomyces Wilcz (Eumycota, incertae sedis) was registered in stratigraphic sections associated to archaeological sites in the Colorado Basin (Buenos Aires, Argentina). Since its description, no other record of this species appeared in literature, being the first appearance in the fossil record. Originally isolated from wastes, it was illustrated as having irregular structures with hook-like appendages that were described as conidia. We found simple and ramified filaments of thick-walled, pale brown, verrucose, cylindrical to somewhat doliform cells. Some cells bear one, two or rarely more lateral appendages, which were pale, thin-walled and smooth, taper to apex, and ended in two or three forked and pointed arms. The collected material agrees fairly well with Harpagomyces lomnickii Wilcz, recovered from late Pleistocene/Holocene La Salada and El Tigre archaeological sites. La Salada section is an outcrop where eolic sediments alternate with pedogenetic and lacustrine levels, the archaeological findings are restricted to the last 20cm section from the surface. In this sequence, Harpagomyces was recorded in sediments dated as old as 3564 years BP (OCR) at 72.5cm depth from the top. There, the pollen association registered corresponds to halophytic steppe with influence of the ecotone and/or the Patagonian steppe. El Tigre section consists of an alternation of eolic and fluvial facies associated with terraced levels and flood plains, involving the last 3000 cal. AP (OCR). Harpagomyces was registered in 12 palynological samples (181-1627 years BP, OCR) between 1.25cm and 2.05cm from the surface. The pollen association registered in this interval corresponds to halophytic steppe. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/publishedVersion Resumen http://purl.org/coar/resource_type/c_5794 info:ar-repo/semantics/documentoDeConferencia |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/16689 |
url |
http://sedici.unlp.edu.ar/handle/10915/16689 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/isbn/978-987-95849-7-2 info:eu-repo/semantics/reference/hdl/10915/25738 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
reponame_str |
SEDICI (UNLP) |
collection |
SEDICI (UNLP) |
instname_str |
Universidad Nacional de La Plata |
instacron_str |
UNLP |
institution |
UNLP |
repository.name.fl_str_mv |
SEDICI (UNLP) - Universidad Nacional de La Plata |
repository.mail.fl_str_mv |
alira@sedici.unlp.edu.ar |
_version_ |
1846782784618627072 |
score |
12.982451 |