Un nouveau gisement à ambre insectifère et à végétaux (Albien terminal probable) : Archingeay (Charente-Maritime, France)

Néraudeau, Didier; Perrichot, Vincent; Dejax, Jean; Masure, Edwige; Nel, André; Philippe, Marc; Moreau, Pierre; Guillocheau, François; Guyot, Thierry

doi:10.1016/s0016-6995(02)00024-4

Cited by 145 publications

(72 citation statements)

References 6 publications

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“…The vertebrate-bearing layer of the Font-de-Benon quarry corresponds to the shelly sand at the base of the unit B1. It is earliest Cenomanian in age, according to the presence of the benthic foraminifera Orbitolina concava (33,34) (Fig. S1).…”

Section: Methodsmentioning

confidence: 99%

The oldest modern therian mammal from Europe and its bearing on stem marsupial paleobiogeography

Vullo

Gheerbrant

Muizon

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

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We report the discovery of mammalian tribosphenic teeth from the basal Cenomanian of southwestern France that we refer to a new primitive marsupial-like form identified as a basal taxon of Marsupialiformes, a new clade recognized here to include the crown group Marsupialia and primitive stem lineages more closely related to Marsupialia than to Deltatheroida. Arcantiodelphys marchandi gen et sp nov. shares several significant marsupial-like features ( s.l. ) with marsupialiform taxa known from the North American Mid-Cretaceous. Among marsupialiforms, it shows a closer resemblance to Dakotadens . This resemblance, which is plesiomorphic within “tribotherians,” makes Arcantiodelphys one of the most archaic known Marsupialiformes. Moreover, Arcantiodelphys is characterized by an original and precocious crushing specialization. Both the plesiomorphic and autapomorphic characteristics of Arcantiodelphys among Marsupialiformes might be explained by an Eastern origin from Asian stem metatherians, with some in situ European evolution. In addition, the presence of a mammal with North American affinities in western Europe during the early Late Cretaceous provides further evidence of a large Euramerican biogeographical province at this age or slightly before. Concerning the paleobiogeographical history of the first stem marsupialiforms during the Albian–Cenomanian interval, 2 possible dispersal routes from an Asian metatherian ancestry can be proposed: Asia to Europe via North America and Asia to North America via Europe. The main significance of the Archingeay-Les Nouillers mammal discovery is that it indicates that the beginning of the stem marsupialiforms history involved not only North America but also Europe, and that this early history in Europe remains virtually unknown.

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Section: Methodsmentioning

confidence: 99%

The oldest modern therian mammal from Europe and its bearing on stem marsupial paleobiogeography

Vullo

Gheerbrant

Muizon

et al. 2009

Proc. Natl. Acad. Sci. U.S.A.

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“…Our fossils originate from the Late Albian amber deposit of Archingeay/ Les-Nouillers (10,11) and from the Early Cenomanian deposit of La Buzinie (11, 12; Fig. 1).…”

mentioning

confidence: 99%

Evidence for marine microfossils from amber

Girard

Schmidt

Martin

et al. 2008

Proc. Natl. Acad. Sci. U.S.A.

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Amber usually contains inclusions of terrestrial and rarely limnetic organisms that were embedded in the places were they lived in the amber forests. Therefore, it has been supposed that amber could not have preserved marine organisms. Here, we report the discovery amber-preserved marine microfossils. Diverse marine diatoms as well as radiolarians, sponge spicules, a foraminifer, and a spine of a larval echinoderm were found in Late Albian and Early Cenomanian amber samples of southwestern France. The highly fossiliferous resin samples solidified Ϸ100 million years ago on the floor of coastal mixed forests dominated by conifers. The amber forests of southwestern France grew directly along the coast of the Atlantic Ocean and were influenced by the nearby sea: shells and remnants of marine organisms were probably introduced by wind, spray, or high tide from the beach or the sea onto the resin flows.Cretaceous ͉ palaeoecology ͉ taphonomy ͉ fossil resin ͉ SW France

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“…The bostrichid studied herein originates from level A1sl-A. Details on the geology, palaeobiota and palaeoenvironment of this and other Charentes amber deposits can be found elsewhere (Néraudeau et al, 2002;Girard et al, 2009;Perrichot et al, 2010).…”

Section: Methodsmentioning

confidence: 91%

“…Measurements (all in mm) were obtained using the scale provided with the synchrotron imaging. Néraudeau et al (2002). Etymology.…”

Section: Methodsmentioning

confidence: 99%

The earliest occurrence and remarkable stasis of the family Bostrichidae (Coleoptera: Polyphaga) in Cretaceous Charentes amber

Cerdán¹,

Delclòs²,

Soriano

et al. 2014

Palaeontologia Electronica

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Peris, David, Delclòs, Xavier, Soriano, Carmen, and Perrichot, Vincent. 2014 A new fossil species of auger beetle (Coleoptera: Bostrichidae), preserved in midCretaceous (Albian-Cenomanian) amber from south-western France, is described as Stephanopachys vetus Peris, Delclòs et Perrichot sp. n. The species is the earliest fossil bostrichid discovered to date, but is remarkably similar to Recent species of the genus Stephanopachys, supporting long morphological conservation in wood boring beetles. The specimen is fossilized in fully opaque amber and was imaged in 3D using propagation phase-contrast X-ray synchrotron microtomography. Based on the ecology of extant related species habits, it is suggested that S. vetus sp. n. was a primary succession pioneer following wildfires in mid-Cretaceous forests. The fossil record of the family is reviewed.

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Un nouveau gisement à ambre insectifère et à végétaux (Albien terminal probable) : Archingeay (Charente-Maritime, France)

Cited by 145 publications

References 6 publications

The oldest modern therian mammal from Europe and its bearing on stem marsupial paleobiogeography

The oldest modern therian mammal from Europe and its bearing on stem marsupial paleobiogeography

Evidence for marine microfossils from amber

The earliest occurrence and remarkable stasis of the family Bostrichidae (Coleoptera: Polyphaga) in Cretaceous Charentes amber

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