Taphonomy of Middle Pennsylvanian Mazon Creek Area Fossil Localities, Northeast Illinois: Significance of Exceptional Fossil Preservation in Syngenetic Concretions

Baird, Gordon C.; Sroka, S. D.; Shabica, Charles W.; Kuecher, Gerald J.

doi:10.2307/3514690

Cited by 101 publications

(96 citation statements)

References 22 publications

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“…Neither the number of appendages nor the arrangement of limbs in isopods match the morphology of the trace fossils described herein. The oldest isopod remains are known from the Late Carboniferous estuarine Essex fauna of Mazon Creek, near Chicago, Illinois, USA (Baird et al, 1986;Schram, 1974). The Late Carboniferous specimens belong to the Phreatoicidea, which are characterized by a laterally compressed body, with an elongated pereon (length/ width ratio in excess of three).…”

Section: Probable Trackmakermentioning

confidence: 99%

Insights on the Behavior of Late Paleozoic Aquatic Crustaceans (Pygocephalomorpha?): Compound Trace Fossils from Western Argentina

Melchor

Cardonatto

2014

Ichnos

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Section: Probable Trackmakermentioning

confidence: 99%

Insights on the Behavior of Late Paleozoic Aquatic Crustaceans (Pygocephalomorpha?): Compound Trace Fossils from Western Argentina

Melchor

Cardonatto

2014

Ichnos

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“…However, plant soft tissues are less labile than animal soft tissues, so for organic plant preservation, moderate decay inhibition at intermediate permeabilities may be sufficient. Conditions favoring mold/cast preservation, which is an important component in soft tissue fossilization at a number of concretion sites (Baird et al 1986;Orr et al 2000), differ from those promoting organic preservation. Here the sediment around the organism is cemented before significant decay collapse affects the organism (Oertel and Curtis 1972).…”

Section: Discussionmentioning

confidence: 98%

Sediment Permeability and the Preservation of Soft-Tissues in Concretions: An Experimental Study

McCoy¹,

Young²,

Briggs³

2015

PALAIOS

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“…Th e authenticity of this fossil has recently been disputed by Béthoux & Briggs (2008), so that a fi nal interpretation has to be based on a careful re-evaluation of the accuracy of the preparation technique applied by Kukalová-Peck. Th e evidence presented by Béthoux & Briggs (2008) appears to be fl awed by some factually incorrect claims concerning the distributions of pyrite grains, which are according to Baird et al (1986) "usually surrounding or occurring just above fossil nuclei", so that their presence together with needle scratches rather seems to be evidence against fudging preparation. However, we concur with Figs 55-56.…”

Section: Evolutionary Signifi Cance Of Abdominal Appendagesmentioning

confidence: 88%

Coxoplectoptera, a new fossil order of Palaeoptera (Arthropoda: Insecta), with comments on the phylogeny of the stem group of mayflies (Ephemeroptera)

Godunko¹,

Staniczek²,

Bechly³

2011

Insect Syst Evol

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Mickoleitia longimanus gen. et sp.n. is described from the Lower Cretaceous limestone of the Crato Formation in Brazil. It is attributed to a new family Mickoleitiidae and a new fossil insect order Coxoplectoptera within the palaeopterous Ephemerida, based on the presence of an elongated costal brace. Th is fossil insect exhibits a very peculiar combination of derived characters like specialized forelegs with strongly elongated, free coxae, single-clawed pretarsus, and distinctly skewed pterothorax as in dragonfl ies. On the other hand, several plesiomorphies are present that exclude this taxon from modern Ephemeroptera, namely large hind wings with widened anal area and numerous cross veins that separate the elongate costal brace from the costal margin. Fossil larvae described by Willmann as larval Cretereismatidae are herein attributed to Mickoleitiidae fam.n., based on the shared presence of broad hind wing buds with distinctly broadened anal area, wing bud venation similar to the adult holotype, and subchelate forelegs with elongate free coxae. Th ese larvae are also highly autapomorphic in the structure of their abdominal gills and laterally fl attened body with vertically oval section that is unique within Ephemerida. On the other hand they possess plesiomorphic lateral wing pads with pronounced articulation like Palaeozoic pterygote larvae, while wing pads in modern insects are always secondarily fused to the tergum. A similar fossil larva from the Jurassic of Transbaikals was earlier described as Mesogenesia petersae and classifi ed within modern mayfl ies. It is herein attributed to Mickoleitiidae fam.n. Coxoplectoptera are recognized as putative sister group of modern Ephemeroptera based on the shared presence of only 7 pairs of abdominal gills, while Permoplectoptera still have retained 9 pairs of gills. Th e phylogenetic reclassifi cation of the mayfl y stem group by Willmann is critically discussed and modifi ed. 102 A.H. Staniczek et al. / Insect Systematics & Evolution 42 (2011) 101-138

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Taphonomy of Middle Pennsylvanian Mazon Creek Area Fossil Localities, Northeast Illinois: Significance of Exceptional Fossil Preservation in Syngenetic Concretions

Cited by 101 publications

References 22 publications

Insights on the Behavior of Late Paleozoic Aquatic Crustaceans (Pygocephalomorpha?): Compound Trace Fossils from Western Argentina

Insights on the Behavior of Late Paleozoic Aquatic Crustaceans (Pygocephalomorpha?): Compound Trace Fossils from Western Argentina

Sediment Permeability and the Preservation of Soft-Tissues in Concretions: An Experimental Study

Coxoplectoptera, a new fossil order of Palaeoptera (Arthropoda: Insecta), with comments on the phylogeny of the stem group of mayflies (Ephemeroptera)

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