Colour Patterns in Early Devonian Cephalopods from the Barrandian Area: Taphonomy and taxonomy

@inproceedings{Turek2009ColourPI,
  title={Colour Patterns in Early Devonian Cephalopods from the Barrandian Area: Taphonomy and taxonomy},
  author={Vojtěch Turek},
  year={2009}
}
  • V. Turek
  • Published 1 September 2009
  • Environmental Science, Geography
Five cephalopod specimens from the Lower Devonian of Bohemia (Czech Republic) preserve colour patterns. They include two taxonomically undeterminable orthoceratoids and three oncocerid nautiloids assigned to the genus Ptenoceras. The two fragments of orthocone cephalopods from the lowest Devonian strata (Lochkovian, Monograptus uniformis Zone) display colour patterns unusual in orthoceratoids. They have irregular undulating and zigzag strips that are preserved on counterparts of adapertural… 

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References

SHOWING 1-10 OF 64 REFERENCES

The color pattern on a Cretaceous nautiloid from South Dakota

Preservation of relict color patterns on fossil nautiloid cephalopods is a relatively rare phenomenon. Reports of this phenomenon as summarized by Kobluck and Mapes (1989, table 2) for the Paleozoic

Minute Silurian Oncocerid Nautiloids with Unusual Colour Patterns

Pomerantsoceras represents, except for un-revised poorly understood taxa, the single known oncocerid genus surviving the end-Ordovician extinction events and supports the hypothesis that colour pattern functioned as camouflage and its evolution was under adaptive control.

ORIGINAL SHELL COLOURATION IN LATE PLEISTOCENE TEREBRATULID BRACHIOPODS FROM NEW ZEALAND

  • G. Curry
  • Environmental Science, Geography
  • 1999
A Late Pleistocene locality (approx. 80 ka) in the Wanganui Basin, New Zealand, has yielded large numbers of the brachiopod Calloria inconspicua displaying original shell colouration. In total 78%

Platyceratid gastropods from the Oriskany Sandstone (Lower Devonian) near Cumberland, Maryland; synonymies, preservation and color markings

A large collection of silicified platyceratid gastropods from the Ridgeley Member of the Oriskany Sandstone, near Cumberland, Maryland, contains specimens of Platyceras (Platyceras) gebharti Conrad,

AMMONOID SHELL STRUCTURES OF PRIMARY ORGANIC COMPOSITION

Abstract:  Palaeozoic and Mesozoic cephalopod conchs occasionally reveal dark organic coatings at the aperture. A number of these coatings, including still unrecorded examples, are described, figured

Color pattern on a martiniid brachiopod from South China

More than 70 species of Paleozoic articulate brachiopods with color patterns have been reported in the literature (see Blodgett et al., 1983, table 1; Table 1). The majority of them are Devonian

Connecting ring structure and its significance for classification of the orthoceratid cephalopods

The connecting ring in orthoceratids is composed of two calcified layers: an outer spherulitic-prismatic and an inner calcified-perforate. The spherulitic-prismatic layer is a direct continuation of

Color Patterns in Ammonoids

A color pattern in an ammonoid was first reported and illustrated by d’Orbigny in 1842 (p. 185, Pl. 45, Fig. 4). He recognized that the pattern preserved on the shell of a specimen of Asteroceras

Upper Steptoean (Upper Cambrian) Trilobites from the Mckay Group of Southeastern British Columbia, Canada

An abundant and well preserved trilobite fauna is described from Upper Cambrian calcareous mudstones of the McKay Group, near Cranbrook in southeastern British Columbia. The trilobites are mostly

XXV.—On the Fossils of the Older Deposits in the Rhenish Provinces; preceded by a general Survey of the Fauna of the Palœozoic Rocks, and followed by a Tabular List of the Organic Remains of the Devonian System in Europe.

Plates XXV. to XXXVIII. INTRODUCTION. On publishing in these Transactions, and in the English language, a work which we at first intended for the Geological Society of France, it may perhaps be
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