Mass Extinction Fossil Ordovician Asaphus Trilobites

Anti-Atlas Mountains, Morocco, Ordovician, ca. 485 to 443 million years ago. This is a NATURALLY OCCURRING mass death assemblage of these trilobites on their original matrix, prepared to expose fossil

Book with photos and in-depth information on Ordovician trilobites. #fossils #geology Issued: 20th c. Dimensions: 11.25"L x 9"L Country of Origin: England

Exceptionnelle plaque fossile présentant un groupe de trilobites après extinction simultanée Exceptional Trilobite Mass Mortality Plate Paradoxydes sp. Middle Cambrian Morocco Trilobite

Ordovician-Silurian, 488-415 million years BP. A group consisting of one Silurian and two Ordovician trilobites, two in old white card trays with A.B. Cotterill Collection, Wollaton, Nottingham, UK, l

Middle Ordovician Period, 400 million years BP. A group of two specimens of the trilobite Ogygiocarella debuchi with Gregory, Bottley, and Lloyd label reading: MID-ORDOVICIAN TRILOBITE, Ogygiocarella

Discovered near Morocco,Ordovician period. Mass casualty orthoceras fossil plate, having multiple cephalopods in a dark grey stone matrix; on an acrylic stand. Unmarked. Approx. h. 20", w. 18", d. 2.5

Discovered near Morocco,Ordovician period. Mass casualty orthoceras fossil plate, having multiple cephalopods and one large center one, in a dark grey stone matrix. Accompanied by scroll copper stand.

Jurassic-Ordovician Periods, 201-445 million years BP. A group of five fossils comprising three trilobites: two Calymene sp., and one Phacops sp., and two Orthoceras sp. 725 grams, 48mm-12cm (2-4 3/4"

Ancient Seas, Russia, Ordovician period, ca. 485.4 to 443.8 million years ago. A stunning trilobite fossil within a stone matrix, of the genus Paraceraurus aculeatus. The trilobite is beautifully pres

Ancient Seas, North America, Ohio & New York, Rochester Shale Formation, Ordovician to Lower Silurian, ca. 425 million years ago. A great collection of trilobite fossils within 4 stone matrices. These

North America, United States, Ohio, New York, & Indiana, Ordovician, Devonian, & Mississippian period, ca. 488.3 to 318 million years ago. This is a fascinating collection of fossils - 4 pieces contai

Ordovician Period, 350-250 million years BP. A large fossil trilobite, possibly Calymene sp. showing the external structures. 152 grams, 10.2cm (4"). UK art market, acquired prior to 2000; from Morocc

Ordovician Period, 488-444 million years B.P. A group of three fossil Ogygius corndensis(?) trilobite specimens in three irregular matrices. 273 grams total, 5.3-10.5 cm (2 - 4 1/8 in.). From a Lincol

Ordovician to Eocene Period, 450-45 million years BP. A collection of fossils in cardboard trays comprising: a Ogygiocarella sp. trilobite impression in matrix from Shropshire, accompanied by an old G

Ordovician Period, c.450 million years B.P. A well-detailed fossil trilobite nest in a matrix. See Seilacher, A., Trilobite Burrows, 2007, for further information. 650 grams total, 16.5 cm (6 1/4 in.)

Cambrian-Permian Period, 541-252 million years BP. An oval-shaped trilobite montage display piece presenting eight fossil trilobites of various types; green felt base. 2.2 kg, 27cm wide (10 1/2"). Pri

4 genuine fossil trilobites, 6-8 inches, in cement matrix 520-250 million years. Size of the cement matrix: 16 in. x 16 in. Weight of the display matrix: 15 lb. = 6.75 kg. Length of trilobites: 8 in,

**Originally Listed At $300** Ancient Seas, ca. 521 to 252 million years ago. A pair of trilobites, each preserved in matrix, with excellent detail remaining, especially on the larger of the two. The

Item: Outstanding natural green double fossil trilobites : Morocops granulops Age: Low. Devonian - Emsian stage Location (the place the fossil has been found): Jbel Zguilma (Foum Zguid) - Morocco Size

Item: Double Dicranurus monstrosus Fossil Trilobites Origin: Anti Atlas Mountains, Morocco Weight (g): 880 Fossils: 7,2 (enrolled) x 7,9 cm & 3,6 x 4,7 cm; Matrix: 12,8 x 12,3 cm Please note that this

Item: Dicranurus monstrosus Fossil Trilobite Origin: Anti Atlas Mountains, Morocco Weight (g): 570 Fossil: 7,9 x 8,7 cm; Matrix: 12,3 x 9,4 cm Please note that this lot has a confidential reserve. Whe

Age: Low. Devonian - Praguian stage Origin: Issoumour mountain - Morocco Description: This big and prone specimen has been prepped for beeing completely free of stone .The eye facets are here very wel

Age: Mid. Devonian - Eifelian stage Origin: Zireg - Morocco Size of slab: 9 x 8.5 cm Size of fossil: 3.7 cm Weight: 250gr The preparation on this specimen is good with great surface detail and free-st

Title : Huge fossil trilobite – On matrix – Negative + Positive part – Cambropallas telesto Species: Cambropallas telesto Age: Middle Cambrian Locality: Jbel Wawrmast, Tinjdad, Mo