Evidence of large Anacardiaceae trees from the Oligocene-early Miocene Santiago Formation, Azuero, Panama

Evidence of large Anacardiaceae trees from the Oligocene-early Miocene Santiago Formation, Azuero, Panama

Abstract We have poor knowledge of the plants that inhabited Central America during the Cenozoic. One of the families with a rich fossil record worldwide, especially for the Oligocene and Miocene epochs is Anacardiaceae. Llanodelacruzoxylon sandovalii gen. et sp. nov. is the first formal record of a fossil wood of Anacardiaceae found in Panama and Central America to date. We collected the fossil woods in the Oligocene-Miocene Santiago Formation, in the Azuero Peninsula, Panama. Among the samples collected we have described and identified this new fossil genus of Anacardiaceae, using wood anatomical characters and extensive comparisons with fossil and extant material. These two specimens share diagnostic features with several Anacardiaceae woods, such as: large vessels (>200 µm), simple vessel-ray pitting and rays mostly uniseriate with large crystals. The occurrence of these Anacardiaceae in Panama by the Oligocene to Miocene adds to the understanding of the historical biogeography of the family and supports Central America (including Mexico) being a divergence center of the Anacardiaceae.

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Main Authors: Rodríguez-Reyes,Oris, Estrada-Ruiz,Emilio, Gasson,Peter
Format: Digital revista
Language:English
Published: Sociedad Geológica Mexicana A.C. 2020
Online Access:http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-33222020000200006
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spelling oai:scielo:S1405-332220200002000062021-03-18Evidence of large Anacardiaceae trees from the Oligocene-early Miocene Santiago Formation, Azuero, PanamaRodríguez-Reyes,OrisEstrada-Ruiz,EmilioGasson,Peter Anacarcadiaceae Oligocene-Miocene fossil wood Santiago Formation Panama Abstract We have poor knowledge of the plants that inhabited Central America during the Cenozoic. One of the families with a rich fossil record worldwide, especially for the Oligocene and Miocene epochs is Anacardiaceae. Llanodelacruzoxylon sandovalii gen. et sp. nov. is the first formal record of a fossil wood of Anacardiaceae found in Panama and Central America to date. We collected the fossil woods in the Oligocene-Miocene Santiago Formation, in the Azuero Peninsula, Panama. Among the samples collected we have described and identified this new fossil genus of Anacardiaceae, using wood anatomical characters and extensive comparisons with fossil and extant material. These two specimens share diagnostic features with several Anacardiaceae woods, such as: large vessels (>200 µm), simple vessel-ray pitting and rays mostly uniseriate with large crystals. The occurrence of these Anacardiaceae in Panama by the Oligocene to Miocene adds to the understanding of the historical biogeography of the family and supports Central America (including Mexico) being a divergence center of the Anacardiaceae.info:eu-repo/semantics/openAccessSociedad Geológica Mexicana A.C.Boletín de la Sociedad Geológica Mexicana v.72 n.2 20202020-01-01info:eu-repo/semantics/articletext/htmlhttp://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-33222020000200006en10.18268/bsgm2020v72n2a300719
institution SCIELO
collection OJS
country México
countrycode MX
component Revista
access En linea
databasecode rev-scielo-mx
tag revista
region America del Norte
libraryname SciELO
language English
format Digital
author Rodríguez-Reyes,Oris
Estrada-Ruiz,Emilio
Gasson,Peter
spellingShingle Rodríguez-Reyes,Oris
Estrada-Ruiz,Emilio
Gasson,Peter
Evidence of large Anacardiaceae trees from the Oligocene-early Miocene Santiago Formation, Azuero, Panama
author_facet Rodríguez-Reyes,Oris
Estrada-Ruiz,Emilio
Gasson,Peter
author_sort Rodríguez-Reyes,Oris
title Evidence of large Anacardiaceae trees from the Oligocene-early Miocene Santiago Formation, Azuero, Panama
title_short Evidence of large Anacardiaceae trees from the Oligocene-early Miocene Santiago Formation, Azuero, Panama
title_full Evidence of large Anacardiaceae trees from the Oligocene-early Miocene Santiago Formation, Azuero, Panama
title_fullStr Evidence of large Anacardiaceae trees from the Oligocene-early Miocene Santiago Formation, Azuero, Panama
title_full_unstemmed Evidence of large Anacardiaceae trees from the Oligocene-early Miocene Santiago Formation, Azuero, Panama
title_sort evidence of large anacardiaceae trees from the oligocene-early miocene santiago formation, azuero, panama
description Abstract We have poor knowledge of the plants that inhabited Central America during the Cenozoic. One of the families with a rich fossil record worldwide, especially for the Oligocene and Miocene epochs is Anacardiaceae. Llanodelacruzoxylon sandovalii gen. et sp. nov. is the first formal record of a fossil wood of Anacardiaceae found in Panama and Central America to date. We collected the fossil woods in the Oligocene-Miocene Santiago Formation, in the Azuero Peninsula, Panama. Among the samples collected we have described and identified this new fossil genus of Anacardiaceae, using wood anatomical characters and extensive comparisons with fossil and extant material. These two specimens share diagnostic features with several Anacardiaceae woods, such as: large vessels (>200 µm), simple vessel-ray pitting and rays mostly uniseriate with large crystals. The occurrence of these Anacardiaceae in Panama by the Oligocene to Miocene adds to the understanding of the historical biogeography of the family and supports Central America (including Mexico) being a divergence center of the Anacardiaceae.
publisher Sociedad Geológica Mexicana A.C.
publishDate 2020
url http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-33222020000200006
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AT estradaruizemilio evidenceoflargeanacardiaceaetreesfromtheoligoceneearlymiocenesantiagoformationazueropanama
AT gassonpeter evidenceoflargeanacardiaceaetreesfromtheoligoceneearlymiocenesantiagoformationazueropanama
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