La palichnofaune des bassins permiens provençaux

Demathieu, Georges; Gand, Georges; Toutin-Morin, Nadège

doi:10.1016/s0016-6995(09)90036-5

Cited by 46 publications

(29 citation statements)

References 15 publications

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“…For example, Melchor (2004) and Fiorillo et al (2009) did not figure the specimens that they reported; furthermore, Fiorillo et al were uncertain of the ichnogeneric assignment of the trackways. Additionally, Santi (2006) illustrated trackways that were similar to those reported by Demathieu et al (1992) and Durand (2001). Based on Santi's figure, the trackways appear to have as many as four tracks per series, which would preclude them from inclusion in Bifurculapes.…”

Section: Geographic and Stratigraphic Distributionsupporting

confidence: 70%

“…Outside of the Hartford and Deerfield basins, tentative occurrences of Bifurculapes have been recorded from the Permian of France and Italy (Demathieu et al 1992;Durand 2001;Santi 2006), the Triassic of Argentina (Melchor 2004), the Jurassic of Utah Milner et al 2009), and the Cretaceous of Alaska (Fiorillo et al 2009). Many of these trackways, however, are unlike the specimens described by Hitchcock (1858Hitchcock ( , 1865 and can be assigned to other ichnotaxa, or were not figured.…”

Section: Geographic and Stratigraphic Distributionmentioning

confidence: 99%

“…Lull (1915,1953) concurred with Hitchcock's final assessment and considered insects to be the most likely trackmakers. Most subsequent researchers (e.g., Mayoral 2001) have also suggested that the ichnogenus resulted from insect activity, although Demathieu et al (1992) argued that a triopsid crustacean was a more likely trackmaker for possible specimens from France. Eiseman and Charney (2010, p. 501) have figured darkling beetle (Coleoptera: Tenebrionidae) trackways that are similar to Bifurculapes laqueatus in that the track series sometimes consists of two elongate and posteriorlyoriented tracks, but differ in that the longer track is positioned medially.…”

Section: Trackmakermentioning

confidence: 99%

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<EM>Bifurculapes</EM> Hitchcock 1858: a revision of the ichnogenus

Getty¹

2017

atgeol

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Characters differentiating the arthropod trackway Bifurculapes from the similar ichnogenera Lithographus and Copeza include the position, arrangement and orientation of the tracks within the series. Of the five species of Bifurculapes originally described, only Bifurculapes laqueatus and Bifurculapes scolopendroideus are recognized herein; the other three ichnospecies are considered to be nomina dubia or junior subjective synonyms of Bifurculapes laqueatus. Two new specimens, recovered from the Early Jurassic East Berlin Formation of the Hartford Basin in Holyoke, Massachusetts, represent only the second unequivocal occurrence of the ichnogenus outside of the Deerfield Basin. Bifurculapes is currently known only from the Early Jurassic. RÉSUMÉLes caractéristiques qui différencient la piste d'arthropode Bifurculapes des ichnogenres Lithographus et Copeza similaires sont la position, la disposition et l' orientation des traces à l'intérieur de la série. Parmi les cinq espèces de Bifurculapes originalement décrites, seules Bifurculapes laqueatus et Bifurculapes scolopendroideus sont ici reconnues. Les trois autres ichnoespèces sont considérées comme nomina dubia ou comme synonymes subjectifs plus récents de Bifurculapes laqueatus. Les deux nouveaux spécimens trouvés dans la formation du Jurassique précoce d'East Berlin dans le bassin de Hartford, à Holyoke, au Massachusetts, représentent seulement la seconde présence sans équivoque de l'ichnogenre à l' extérieur du bassin de Deerfield. À l'heure actuelle, Bifurculapes n' est associé qu'au Jurassique précoce.

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Section: Geographic and Stratigraphic Distributionsupporting

confidence: 70%

Section: Geographic and Stratigraphic Distributionmentioning

confidence: 99%

Section: Trackmakermentioning

confidence: 99%

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<EM>Bifurculapes</EM> Hitchcock 1858: a revision of the ichnogenus

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2017

atgeol

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“…Haubold and Katzung 1978;Fichter 1982 Fichter , 1983, the Provenc Ëal and Lode Áve basins of France (Demathieu et al 1992), and the Keele and Enville beds of Shropshire and Staffordshire in England (Hardaker 1912; Haubold and Sarjeant 1973). These localities have produced various amphibian trackways (walking traces): Anthichnium, Batrachichnus, Gracilichnium, Hyloidichnus, Limnopus, Nanopus, and Parabaropus.…”

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confidence: 99%

Amphibian swimming traces from the Lower Permian of southern New Mexico

2003

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ABSTRACT. Fossilised traces of swimming amphibians, assigned to Batrachichnus delicatulus and Serpentichnus robledoensis igen. et isp. nov., are described from the Lower Permian of the Robledo Mountains, southern New Mexico. The B. delicatulus specimen is interpreted as a trackway of a small`amphibian' (temnospondyl, nectridean, microsaur or juvenile embolomere) swimming straight ahead. S. robledoensis consists of repeated pes imprints separated by discontinuous, L-shaped imprints (body traces). It is interpreted as a trackway of an`amphibian' swimming in a similar manner to the motion of a side-winding snake. The producer of S. robledoensis is more distinctive than in B. delicatulus, and is suggestive of the lysorophian Brachydectes. This is the ®rst locomotory trace to be assigned to this`amphibian' group.KEY WORDS: Tetrapoda, amphibian, trace fossil, swimming, Lower Permian, New Mexico.T H E Lower Permian Robledo Mountains ichnofauna of southern New Mexico is recognised as the most abundant and diverse assemblage of Palaeozoic terrestrial trace fossils in the world (Hunt et al. 1993). Vertebrate trackways dominate this ichnofauna, and are attributed to small and large temnospondyl amphibians, araeoscelid and diadectid amniotes, and small and large pelycosaurs Schult 1995).Amphibian' (i.e. non-amniote tetrapod) traces are rare in the fossil record. The ®sh trail Undichna Anderson, 1976, has long been confused with those of amphibians, although the absence of footprints associated with these sinusoidal trails indicates that it was produced by a ®sh. Recent work has expanded the ichnogenus Undichna, including new ichnospecies from the Cretaceous of Spain (Gibert et al. 1999) and Permian of the Falkland Islands (Trewin 2000). The material described herein cannot be referred to Undichna because of the presence of footprints.Carboniferous and Permian tetrapod traces attributed to amphibians are known from many localities including the Hermit Shale of Arizona (Gilmore 1926(Gilmore , 1927, the Rotliegendes of Central Europe (e.g. Haubold and Katzung 1978;Fichter 1982 Fichter , 1983, the Provenc Ëal and Lode Áve basins of France (Demathieu et al. 1992), and the Keele and Enville beds of Shropshire and Staffordshire in England (Hardaker 1912; Haubold and Sarjeant 1973). These localities have produced various amphibian trackways (walking traces): Anthichnium, Batrachichnus, Gracilichnium, Hyloidichnus, Limnopus, Nanopus, and Parabaropus. These trackways show a variety of forms: well-de®ned manus and pes imprints with individual digits or deep undertracks with poorly preserved foot imprints; some also show a continuous, straight tail drag. A continuum in the morphological variation within these ichnotaxa is apparent , controlled largely by substrate-type and the locomotory behaviour of the producer (e.g. walking, running, or swimming). Tail drags may be associated with walking or swimming (or transitional) traces. Sarjeant (1976) attributed Oklahomaichnus millsii, from the Pennsylvanian of Oklahoma, to the trace of a l...

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“…C. H. Hitchcock (1889) reported Sagittarius, which is herein considered a junior subjective synonym of Bifurculapes, from Connecticut and New Jersey. Getty (2016) also reviewed the tentative occurrences of Bifurculapes from the Permian of France and Italy (Demathieu et al, 1992;Durand, 2001;Santi, 2006), the Triassic of Argentina (Melchor 2004), the Jurassic of Utah (Lucas et al, 2006;Milner et al, 2009), and the Cretaceous of Alaska (Fiorillo et al, 2009). He concluded that of these, the only specimen that should be included within Bifurculapes based on the information provided in the papers describing them was the one from Utah.…”

Section: Geographic and Stratigraphic Distributionmentioning

confidence: 99%

Revision of the Early Jurassic arthropod trackways Camurichnus and Hamipes

Getty

2018

BSGM

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RESUMEN Los icnogéneros Camurichnus y Hamipes ABSTRACTThe ichnogenera Camurichnus and Hamipes have been reevaluated based on examination of their type specimens, and their geographic and stratigraphic ranges determined based on a review of the literature. The characteristics used to distinguish Camurichnus (originally erected as Sagittarius) and its included ichnospecies alternans, have been observed in Bifurculapes laqueatus and therefore Camurichnus alternans is considered a junior subjective synonym of B. laqueatus herein. Hamipes is a distinct ichnogenus that can be differentiated from similar ichnotaxa by the number, shape, and arrangement of the tracks. Cretaceous trackways from Spain that were attributed to Hamipes belong to Bifurculapes. Additionally, the species H. molassicus is moved to the ichnogenus Conopsoides. Since the only other occurrence of Hamipes was the type specimen, the ichnogenus is again known only from the Early Jurassic of Massachusetts, U.S.A. The ichnotaxonomic reassignment, however, extends the geographic and stratigraphic range of Bifurculapes to the Cretaceous of Europe.

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La palichnofaune des bassins permiens provençaux

Cited by 46 publications

References 15 publications

<EM>Bifurculapes</EM> Hitchcock 1858: a revision of the ichnogenus

<EM>Bifurculapes</EM> Hitchcock 1858: a revision of the ichnogenus

Amphibian swimming traces from the Lower Permian of southern New Mexico

Revision of the Early Jurassic arthropod trackways Camurichnus and Hamipes

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