Natural History

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Datum der Auktion: 27.05.2010

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Paleocene Leaves

Davidia antiqua, Platanus nobilis, Joffrea speirsii Paleocene Western United States The Paleocene Epoch, immediately following the mass extinction of the dinosaurs 65 million years ago, marked the development of modern plant species. Warm global temperatures facilitated the thick growth of forests

Los #: 1000

Schätzpreis: 0 $

Datum: 27.05.2010

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Large Fern Plaque

Alethopteris, Neuropteris, Pecopteris, Sphenophyllum Pennsylvanian Llewellyn Formation, St. Claire, Pennsylvania 330 million years ago, these plants died and fell into a marsh, where a low temperature, low oxygen environment allowed the plant tissue to be slowly replaced by pyrite (from sulphides

Los #: 1001W

Schätzpreis: 0 $

Datum: 27.05.2010

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Rare Green Petrified Wood Log Section

Woodworthia sp. Chinle Formation, Arizona Some thirty years ago, in a chromium-bearing formation, a small amount of green petrified wood was found. Chromium is the same element that gives emeralds their magnificent green color. This log section a particularly long one and measures 10 x 3 ½ x 2 in

Los #: 1002

Schätzpreis: 0 $

Datum: 27.05.2010

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Polished Petrified Wood Stump

Araucarioxylon arizonicum Triassic Chinle Formation Arizona A large stump of silicified wood with hues of predominantly black and red, with a red border at the edges, and a milky gray center with red highlights, complete bark texturing on all side, contour polished top, measures 23 x 19 x 9in

Los #: 1003W

Schätzpreis: 1.500 $ - 1.800 $

Datum: 27.05.2010

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Large Brazilian Plant

Gymnosperm Early Cretaceous Crato Formation, Nova Olinda, Ceará, Brazil The gymnosperms are a group of seed-bearing plants that includes conifers and cycads. Offered is a large and beautifully preserved herbaceous plant displaying the primary root as well as gorgeous delicate leaf and stem details

Los #: 1004

Schätzpreis: 6.500 $ - 7.500 $

Datum: 27.05.2010

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Large Petrified Wood Slab

Triassic Araucaria sp Madagascar Such large slabs of petrified wood from Madagascar are typically unheard of. Originating from the coniferous tree of the Araucaria species, the present well-preserved cross-section slab has an oval outline and is distinguished by rich tans and ochres. The bark

Los #: 1005W

Schätzpreis: 3.000 $ - 3.500 $

Datum: 27.05.2010

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Incomparable Petrified Wood Table Top

Araucarioxylon arizonicum Chinle Formation, Arizona Harvested on property just adjacent to the renowned Petrified Forest National Park in Arizona, this is a superlative and most unusual example of the world's most sought-after petrified wood. While specimens from this region are known for their

Los #: 1006W

Schätzpreis: 6.000 $ - 8.000 $

Datum: 27.05.2010

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Large Polished Petrified Wood Stump

Araucarioxylon arizonicum Triassic Chinle Formation, Arizona With contour polished top, serving to form an seat, this fine large stump of silicified coniferous wood, exhibits predominantly black hues accented with gray, white and red highlights, with complete bark texturing to the exterior, measures

Los #: 1007W

Schätzpreis: 3.000 $ - 4.000 $

Datum: 27.05.2010

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Book-Matched Pair of Large Petrified Wood Slabs

Araucarioxylon arizonicum Triassic Chinle Formation, Arizona Perfect for serving as a set of end tables, it is extremely rare to find consecutive slabs of petrified wood. Each of roughly oval outline, consisting of predominantly black hues, the concentric growth lines and original cellular structure

Los #: 1008W

Schätzpreis: 8.000 $ - 10.000 $

Datum: 27.05.2010

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Large Polished Petrified Wood Stump

Araucarioxylon arizonicum Triassic Chinle Formation, Arizona The petrification of wood occurs underground when wood becomes buried under sediment and is initially preserved due to a lack of oxygen. Mineral-rich water flowing through the sediment deposits minerals in the plant's cells and as its

Los #: 1009W

Schätzpreis: 0 $

Datum: 27.05.2010

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Two Huge Spiny Trilobites with Starfish and Brittle Stars

Selenopeltis burchi, Ophiuroidae sp. Ordovician Mount Boutshafrin, near Alnif, Morocco The three-dimensional detail of this piece shows off the small eyes, distinctive body bumps and delicate spines of these two complete 6- and 7-inch trilobites. The presence of four complete, large brittle starfish

Los #: 1010

Schätzpreis: 1.600 $ - 2.400 $

Datum: 27.05.2010

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Exceptional American Trilobite

Arctinurus boltoni Mid-Silurian Rochester Formation, Middleport, New York Arctinurus boltoni is a rare American Trilobite famous for its unique and striking appearance. Its wide, wing-like body is covered with tiny postules, which may have displayed sensory whiskers to detect prey as it lay buried

Los #: 1011

Schätzpreis: 0 $

Datum: 27.05.2010

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Exceptional Multiple Trilobite/Brachiopod Plate

Ceraurus pleurexanthemus, Calymeme senaria, Homocystis Middle Ordovician Verulam Formation, Neuville Quarry, Neuville Province, Quebec, Canada Trilobites are an extinct class of arthropod that existed only in the Paleozoic Era, from 542 to 251 million years ago. Among the most prized are the mass

Los #: 1012

Schätzpreis: 5.500 $ - 6.500 $

Datum: 27.05.2010

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Large Armored Fish

Botherolepis canadensis Late Devonian Escuminac Formation, Miguasha Bay, Quebec, Canada Placoderms lived from the Early Devonian to the Early Carboniferous. Bothriolepis is the best known and most widely distributed of all the Placoderms. It has been found on all of the continents except Africa and

Los #: 1013

Schätzpreis: 4.000 $ - 5.000 $

Datum: 27.05.2010

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Exquisite American Trilobite

Arctinurus boltoni on Matrix Middle Silurian Rochester Shale Formation , Middleport, New York Arctinurus is the undisputed King of all North American trilobites due not only to its exceptionally exotic and pleasing appearance, but also to the limited nature of its origin. Found only in the Rochester

Los #: 1014

Schätzpreis: 0 $

Datum: 27.05.2010

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Armored Fish

Botherolepis canadensis Late Devonian Escuminac Formation, Miguasha Bay, Quebec, Canada This bottom dwelling armored fish species, a Placoderm, displayed a small head with eyes on top. Botherolepis would have hugged the ocean floor like a stingray and may have used its long armored arms for

Los #: 1015

Schätzpreis: 2.500 $ - 3.500 $

Datum: 27.05.2010

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Mississippian Sea Floor Slab

Actinocrinus gibsoni, Cyanthocrintes multibrachiatus, Agaricocrinus splendens, Onychocrinus ulrichi, Agaricocrinus americanus Mississippian Edwardsville Formation, Montgomery County, Indiana Providing a glimpse of the diversified fauna of the Mississippian seafloor, this slab displays an amazingly

Los #: 1016

Schätzpreis: 0 $

Datum: 27.05.2010

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Holzmaden Sea Lily

Seirocrinus subangularis Lower Jurassic Holzmaden, Germany During the Jurassic Age, in the area now known as Germany, tropical reef islands dotted a warm shallow sea. Of the marine life that thrived during this period, the crinoid, or sea lily, is one of least recognizable to the human eye. Its

Los #: 1017W

Schätzpreis: 0 $

Datum: 27.05.2010

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Brittle Starfish and Carpoid Plate

Ophiuroidae sp. Middle Ordovician Kataoua Formation, Mecissi, Morocco This fascinating and aesthetically appealing plate contains 14 complete and nearly complete orange brittle starfish - each up to 5 inches in diameter - along with 3 carpoids, an extinct relative of starfish and crinoids. These

Los #: 1018

Schätzpreis: 0 $

Datum: 27.05.2010

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Agadir Ammonite on Stand

Cretaceous Agadir, Morocco Naturally sculptural in appearance, a fine ammonite, mounted on a custom stand, is ready for display in a fossil collection or as an earthy interior design accent. Measures 16 x 13 x 2.5in

Los #: 1019

Schätzpreis: 0 $

Datum: 27.05.2010

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Iridescent Scaphite

Jeletzkytes spedeni Upper Maastrichtian, Late Cretaceous Fox Hills Formation, Dewey County, South Dakota Shimmering iridescence distinguishes a beautifully preserved scaphite displaying fine ribbing and detailed nubby texture. Measures 5 3/4in

Los #: 1020

Schätzpreis: 0 $

Datum: 27.05.2010

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Chambered Ammonite Sculpture

Phylloceras sp., Turritella Cretaceous Sidi Yahya Said, Morocco This striking sculpture features two 100-million-year-old golden brown Phylloceras ammonites positioned atop an 8-inch-long base which displays a large Turritella shell. The larger ammonite is 10 inches in diameter with beautiful hues

Los #: 1020A

Schätzpreis: 1.800 $ - 2.400 $

Datum: 27.05.2010

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Russian Uncoiled Ammonite

Tropeum Early Cretaceous Volga River, Saratov Region, Russia A sizeable uncoiled ammonite displays thick nacre with subtle red-pink iridescence. During the Early Cretaceous, this animal would have bobbed up and down in the water column, practicing its ambush-style predation tactics. Mounted on

Los #: 1021

Schätzpreis: 1.200 $ - 1.500 $

Datum: 27.05.2010

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Moroccan Ammonite with Stand

Cretaceous Morocco A massive, decorative ribbed ammonite. Offered on a custom stand. Measures 25 x 21 x 5in

Los #: 1022W

Schätzpreis: 0 $

Datum: 27.05.2010

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Sculptural Brown French Ammonite on Matrix

Arietites bucklandi Jurassic France Earthy brown coloration and strongly textural ribbing are seen in a robust ammonite on matrix. As well as a marvelous display specimen, this presentation - almost two feet in height – could easily function as a stunning decorative accent piece. Measures 23 x 16in

Los #: 1023W

Schätzpreis: 0 $

Datum: 27.05.2010

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Exquisite Heteromorph Ammonite

Didymoceras nebrascenense Late Cretaceous Pierre Shale Formation, Southwestern South Dakota Because these uncommon specimens cannot be commercially collected (and are only rarely found by excavators as shale nodules are opened in the search for more common fossils) Didymoceras specimens are perhaps

Los #: 1024

Schätzpreis: 3.000 $ - 4.000 $

Datum: 27.05.2010

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Sculptural Pair of Ammonites

Goniatite Devonian Atlas Mountains, Morocco Related to the modern chambered nautilus, this pair of 390-million-year-old black and white Goniatite ammonites originated in the Atlas Mountains of Morocco. The larger specimen, almost one foot in diameter, exhibits an interesting suture pattern (marking

Los #: 1025

Schätzpreis: 0 $

Datum: 27.05.2010

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French Ammonite on Matrix

Arietities bucklandi Early Jurassic France Rich graphite-gray coloration, large size and strong ribbed texture produce a gorgeous effect in this French ammonite on matrix. Well-suited as an addition to a serious fossil collection as well as for decorative purposes, it exudes both aesthetic appeal

Los #: 1026W

Schätzpreis: 0 $

Datum: 27.05.2010

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Incomparable Russian Ammonite on Stand

Tropaeum sp. Upper Aptian Volga River Area, Ulyanovsk central Russia In Tropaeum, the body chamber can touch the previous whorls or can be separated and loose so that it forms a hook-like shape. Only the ammonite family is capable of this phenomenon. The present specimen is an example of the body

Los #: 1027W

Schätzpreis: 11.000 $ - 13.000 $

Datum: 27.05.2010

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Group of Three Ammolite Cabochons

Southern Alberta, Canada Ammolite was first discovered by the Black Foot Tribe in an area bordering the Canadian Rockies. In 1908, a member of the National Geological Survey team found mineralized opalescent fossil shells from prehistoric sea creatures known as ammonites along the St. Mary River in

Los #: 1028

Schätzpreis: 0 $

Datum: 27.05.2010