Fossil flower of Salacia lombardii sp. nov. (Salacioideae-Celastraceae) preserved in amber from Simojovel de Allende, Mexico

Hernández-Damián, Ana Lilia; Gómez-Acevedo, Sandra Luz; Cevallos-Ferriz, Sergio R.S.

doi:10.1016/j.revpalbo.2018.02.003

Cited by 6 publications

(5 citation statements)

References 26 publications

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“…Recently, Poinar (2022), in a bibliographical revision, indicated that around 16 families of angiosperms had been reported in the Mexican amber. Some of these lineages are also documented in amber deposits in the Dominican Republic, such as Arecaceae (Poinar, 2002), Celastraceae (Chambers and Poinar, 2016;Hernández-Damián et al, 2018), Fabaceae (Poinar and Brown, 2002;Calvillo-Canadell et al, 2010), Urticaceae (Poinar et al, 2016) and Rhamnaceae (Chambers and Poinar, 2015;Hernández-Hernández and Castañeda-Posadas, 2018). These reports support comparing these fossiliferous localities (Poinar, 2022).…”

Section: Introduction E-issn 2082-0259supporting

confidence: 54%

Aphananthe Planch. (Cannabaceae) flower preserved in the Mexican amber

Hernández-Damián¹,

Rubalcava-Knoth²,

Cevallos-Ferriz³

2023

Acta Palaeobot.

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Cannabaceae (Urticalean Rosids clade) is a small family with ten genera and a wide distribution in tropical and temperate regions worldwide. A complete understanding of the history of the lineage is fundamental to the integration of its fossil record, which needs to be better documented in low latitudes of North America. This work recognizes a new species, Aphananthe manchesteri Hernández-Damián, Rubalcava-Knoth et Cevallos- Ferriz sp. nov. (Cannabaceae), from the Miocene amber deposits of Simojovel de Allende, Chiapas, Mexico, based on a flower analyzed with reflected light and CT-scanning. Flowers of Cannabaceae are generally staminate or pistillate and small; staminate flowers have five sepals and opposite five stamens, and a pubescent pistillode, such as the fossil. However, the presence of three unguiculate and two ovate sepals with a puberulent surface are characteristics that allow its recognition as Aphananthe, the fossil is morphologically similar to Aphananthe monoica, an extant species that grows along the Pacific coast of Mexico. The presence of Aphananthe manchesteri sp. nov. in southern Mexico during the middle-early Miocene, ~23–15 Ma ago, supports the history of the lineage in lowlatitude North America, representing an expansion of the Boreotropical Flora. It adds to the taxonomical diversity of angiosperms preserved in Mexican amber, comparable with amber deposits from the Dominican Republic, where another anemophilous extinct species member of the Urticalean Rosids clade has been reported. This coincidence further supports the development of similar plant communities between these fossiliferous localities.

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Section: Introduction E-issn 2082-0259supporting

confidence: 54%

Aphananthe Planch. (Cannabaceae) flower preserved in the Mexican amber

Hernández-Damián¹,

Rubalcava-Knoth²,

Cevallos-Ferriz³

2023

Acta Palaeobot.

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“…This work is relevant because it includes a revision of the fossil record of Celastraceae. But does not include newly reported fossil taxa that can change the phylogenetic interpretations when considering such taxa as Maytenoxylon perforatum (Franco 2018), Lobocyclas anomala (Chambers & Poinar 2016), and Salacia lombardii (Hernández-Damián et al 2018).…”

Section: Discussionmentioning

confidence: 99%

“…According to Conwentz (1886) it includes bisexual flowers with a differentiated perianth with four sepals and petals, a disk, and an ovary with four locules. Other flower reports include Wuyunanthus hexapetalus from the Paleocene of China (Wang et al 2001), Lobocyclas anomala (Hippocrateoideae) preserved in Miocene amber from the Dominican Republic (Chambers & Poinar 2016), and Salacia lombardii (Salacioideae) from Miocene of Simojovel de Allende, Mexico (Hernández-Damián et al 2018). All these records have the general structural pattern of the family as they are bisexual flowers with a biseriate perianth and a conspicuous disk (Stevens 2001, Simmons 2004.…”

Section: O N L I N E F I R S Tmentioning

confidence: 99%

Fossil record of Celastraceae: evaluation and potential use in molecular calibrations

2021

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Background: Celastraceae is a morphologically heterogeneous family. For this reason, the inclusion of some taxa within this group is controversial. Recently this problem has become significant since its fossil record is recognized as an important source of information for evolutionary studies, especially those using molecular clocks which require a robust, reliable fossil record. Questions: What are the most reliable fossil records of Celastraceae? What morphological characters are used to assign fossils in the family? Study site and dates: Compilation of records contained in paleontological databases, and paleobotanical literature, covering publications from 1869 to 2018. Methods: Published information on the Celastraceae fossil record was compiled and analyzed using the most recent classification system and specialized literature on the family. Results: A total of 168 fossil records were examined, of which nine are proposed for use as molecular clock calibration points. Each specimen has a description based on a character set used for its identification, a photograph and/or illustration, their geological age is well supported, their geographic origin is known, and the specimens are in accredited home institutions with publicly accessible collections. Conclusions: The identification and establishment of relationships between fossil and extant taxa have important limitations that depend on the critical interpretation of morphology in a phylogenetic context. Therefore, it is essential to incorporate only those morphological studies in Celastraceae that help clarify its fossil record.

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“…We compared disparity and morphospace occupation among four stratigraphic time bins: the Early Cretaceous (145–100.5 Ma), the Late Cretaceous (100.5–66 Ma), the Paleogene (66–23.03 Ma; Cohen et al ., 2013 ), and living species (present time). Detailed morphological descriptions were only available for two species from the Neogene (23.03–5.333 Ma; Castañeda‐Posadas & Cevallos‐Ferriz, 2007 ; Hernández‐Damián et al ., 2018 ; Cohen et al ., 2013 ); Neogene fossils were thus excluded from the statistical analyses.…”

Section: Methodsmentioning

confidence: 99%

“…Detailed morphological descriptions were only available for two species from the Neogene (23. 03-5.333 Ma;Castañeda-Posadas & Cevallos-Ferriz, 2007;Hern andez-Dami an et al, 2018;Cohen et al, 2013); Neogene fossils were thus excluded from the statistical analyses. Methods section) in the floral morphospace and compared their position with that of living and fossil angiosperms.…”

Section: Disparity Through Timementioning

confidence: 99%

Angiosperm flowers reached their highest morphological diversity early in their evolutionary history

López‐Martínez,

Magallón,

von Balthazar

et al. 2023

New Phytologist

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Summary Flowers are the complex and highly diverse reproductive structures of angiosperms. Because of their role in sexual reproduction, the evolution of flowers is tightly linked to angiosperm speciation and diversification. Accordingly, the quantification of floral morphological diversity (disparity) among angiosperm subgroups and through time may give important insights into the evolutionary history of angiosperms as a whole. Based on a comprehensive dataset focusing on 30 characters describing floral structure across angiosperms, we used 1201 extant and 121 fossil flowers to measure floral disparity and explore patterns of floral evolution through time and across lineages. We found that angiosperms reached their highest floral disparity in the Early Cretaceous. However, decreasing disparity toward the present likely has not precluded the innovation of other complex traits at other morphological levels, which likely played a key role in the outstanding angiosperm species richness. Angiosperms occupy specific regions of the theoretical morphospace, indicating that only a portion of the possible floral trait combinations is observed in nature. The ANA grade, the magnoliids, and the early‐eudicot grade occupy large areas of the morphospace (higher disparity), whereas nested groups occupy narrower regions (lower disparity).

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Fossil flower of Salacia lombardii sp. nov. (Salacioideae-Celastraceae) preserved in amber from Simojovel de Allende, Mexico

Cited by 6 publications

References 26 publications

Aphananthe Planch. (Cannabaceae) flower preserved in the Mexican amber

Aphananthe Planch. (Cannabaceae) flower preserved in the Mexican amber

Fossil record of Celastraceae: evaluation and potential use in molecular calibrations

Angiosperm flowers reached their highest morphological diversity early in their evolutionary history

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