The millipedes and centipedes of Chiapas amber

Riquelme, Francisco José Montero; Hernández-Patricio, Miguel

doi:10.15560/14.4.637

Cited by 4 publications

(11 citation statements)

References 8 publications

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“…Simojovel, Totolapa, and Estrella de Belén are considered the type localities of a Conservation Lagerstätte with a remarkable abundance of amber inclusions, predominantly terrestrial arthropods and plants (Riquelme et al, 2013(Riquelme et al, , 2014b. Here the sedimentary record is strongly associated with a lowland-fluvial environment close to the coastal plain (Graham, 1999;Langenheim, 2003;Perriliat, Vega & Coutiño, 2010;Riquelme et al, 2013); and paleobiota resembles those found in current humid tropics (Riquelme & Hernández-Patricio, 2018). Chiapas amber has chemical signatures that match with the extant resins of the genus Hymenaea (sensu Langenheim, 1966), which are also currently distributed in the tropics (Langenheim, 2003;Riquelme et al, 2014b)…”

Section: Geological Settingmentioning

confidence: 96%

“…The polydesmid millipedes of the family Pyrgodesmidae currently show a Pantropical distribution (Enghoff et al, 2015). However, the fossil record is limited to amber inclusions from Miocene deposits of the Dominican Republic and Mexico (Shear, 1981;Santiago-Blay & Poinar, 1992;Riquelme & Hernández-Patricio, 2018). Fossil specimens of Dominican amber have been assigned to the genera Docodesmus Cook, 1896a, Iomus Cook, 1911, Lophodesmus Pocock, 1894and Psochodesmus Cook, 1896b(Shear, 1981Santiago-Blay & Poinar, 1992), and the only fossil specimen described at the species level that is known so far is Docodesmus brodzinskyi Shear, 1981.…”

Section: Introductionmentioning

confidence: 99%

“…Fossil specimens of Dominican amber have been assigned to the genera Docodesmus Cook, 1896a, Iomus Cook, 1911, Lophodesmus Pocock, 1894and Psochodesmus Cook, 1896b(Shear, 1981Santiago-Blay & Poinar, 1992), and the only fossil specimen described at the species level that is known so far is Docodesmus brodzinskyi Shear, 1981. Another fossil pyrgodesmid was found in Chiapas amber, Mexico, a female specimen identified as CPAL.117 by Riquelme & Hernández-Patricio (2018), which was initially included as a new member of the genus Myrmecodesmus within Pyrgodesmidae. In the present contribution, based on the female CPAL.117 plus another male specimen identified as CPAL.132, a new species of the genus Myrmecodesmus is now described.…”

Section: Introductionmentioning

confidence: 99%

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A Miocene pyrgodesmid millipede (Polydesmida: Pyrgodesmidae) from Mexico

Riquelme¹,

Hernández-Patricio²,

Álvarez-Rodríguez³

2021

PeerJ

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A new fossil species of pyrgodesmid millipede (Polydesmida: Pyrgodesmidae) placed in the genus Myrmecodesmus Silvestri, 1910 is described. The type materials are two amber inclusions, male and female specimens that come from Miocene strata in Chiapas, Mexico. Myrmecodesmus antiquus sp. nov. has collum with 10 dorsal tubercles; without porosteles or ozopores; legs of the rings 2–9 with a short projection on the prefemur in both the female and male. Myrmecodesmus antiquus sp. nov is the first fossil record of the genus Myrmecodesmus. This is a New World taxon that belongs to the pantropical family Pyrgodesmidae. Thus, Myrmecodesmus antiquus sp. nov expands the range of the genus to the Miocene tropics in Middle America.

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Section: Geological Settingmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Miocene pyrgodesmid millipede (Polydesmida: Pyrgodesmidae) from Mexico

Riquelme¹,

Hernández-Patricio²,

Álvarez-Rodríguez³

2021

PeerJ

Self Cite

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“…Cretaceous amber inclusions come from different strata, including the most emblematic amber sites, such as Lebanon (Nguyen Duy-Jacquemin & Azar, 2004), France (Nguyen Duy-Jacquemin & Azar, 2004), and Myanmar (Rasnitsyn & Ross, 2000; Grimaldi et al ., 2002; Ross & Sheridan, 2013; Liu et al ., 2017; Zhang, 2017; Ross, 2018; Wesener & Moritz, 2018; Jiang et al ., 2019; Moritz & Wesener, 2019, 2021; Stoev et al ., 2019; Su et al ., 2019, 2020). In the Cenozoic, most fossil materials are also preserved as amber inclusions from exceptional conservation sites, such as those in the Baltic region (Koch & Berendt, 1854; Menge, 1854; Hoffman, 1969; Wesener, 2019), India (Srivastava et al ., 2006), Dominican Republic (Shear, 1981; Santiago-Blay & Poinar, 1992), and Mexico (Riquelme et al ., 2013; 2014; 2021; Riquelme & Hernández-Patricio, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Wesener & Moritz (2018) published an inventory of the Myriapoda, including Diplopoda, from the lowermost Upper Cretaceous amber of Myanmar. Riquelme & Hernández-Patricio (2018) published the first inventory of Diplopoda from the Lower Miocene Chiapas amber. They initially listed 34 records in four orders, six families, five genera, and three species.…”

Section: Introductionmentioning

confidence: 99%

Diplopoda in the world fossil record

Álvarez Rodríguez,

Riquelme,

Patricio

et al. 2024

Preprint

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We present a comprehensive catalog with an updated database of the fossil record of Diplopoda in the world. Taxonomic data was collected from descriptions and reports published from 1854 to the present. We also include new records from the Lower Miocene Mexican amber, counting 83 unknown fossil inclusions, with the first records of the orders Polyxenida, Platydesmida, and Julida, as well as the families Sphaeriodesmidae and Trichopolydesmidae within Polydesmida. According to our results, Diplopoda comprises 217 fossil records from the Middle Silurian to Upper Pleistocene, representing three subclasses, six superorders, 25 orders, one superfamily, 54 families, 90 genera, and 156 fossil species. To date, no fossils of the order Siphonocryptida have been reported. The fossil record extends over three geological eras: the Paleozoic, with 156 records; the Mesozoic, with 51; and the Cenozoic, with 77. The fossil preservation includes 87 impressions, 68 compressions, 108 amber inclusions, and 19 ichnites. Thus, this catalog allows us to estimate the size and taxonomic composition of Diplopoda in the fossil record worldwide.

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Phylogenetic Systematics of the Millipede Family Xystodesmidae

Means

Hennen

Tanabe

et al. 2021

Insect Systematics and Diversity

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The millipede family Xystodesmidae includes 486 species distributed primarily in temperate deciduous forests in North America and East Asia. Species diversity of the family is greatest in the Appalachian Mountains of the eastern United States, with 188 species. Although the group includes notable taxa such as those that are bioluminescent and others that display Müllerian mimicry, producing up to 600 mg of cyanide, basic alpha-taxonomy of the group is woefully incomplete and more than 50 species remain undescribed in the Appalachian Mountains alone. In order to establish a robust phylogenetic foundation for addressing compelling evolutionary questions and describing species diversity, we assembled the largest species phylogeny (in terms of species sampling) to date in the Diplopoda. We sampled 49 genera (out of 57) and 247 of the species in the family Xystodesmidae, recollecting fresh material from historical type localities and discovering new species in unexplored regions. Here, we present a phylogeny of the family using six genes (four mitochondrial and two nuclear) and include pivotal taxa omitted from previous studies including Nannaria, Erdelyia, taxa from East Asia, and 10 new species. We show that 6 of the 11 tribes are monophyletic, and that the family is paraphyletic with respect to the Euryuridae and Eurymerodesmidae. Prior supraspecific classification is in part inconsistent with the phylogeny and convergent evolution has caused artificial genera to be proposed. Subspecific classification is likewise incongruent with phylogeny and subspecies are consistently not sister to conspecifics. The phylogeny is used as a basis to update the classification of the family, diagnose monophyletic groups, and to inform species hypotheses.

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The millipedes and centipedes of Chiapas amber

Cited by 4 publications

References 8 publications

A Miocene pyrgodesmid millipede (Polydesmida: Pyrgodesmidae) from Mexico

A Miocene pyrgodesmid millipede (Polydesmida: Pyrgodesmidae) from Mexico

Diplopoda in the world fossil record

Phylogenetic Systematics of the Millipede Family Xystodesmidae

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