Sammlung von Merckwürdigkeiten der Natur und Alterthümern des Erdbodens, v. 2

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https://omeka-s.library.illinois.edu/s/rbml/item/3946
Title
Sammlung von Merckwürdigkeiten der Natur und Alterthümern des Erdbodens, v. 2
Description
Another volume of Knorr and Walch’s Collection of Remarkable Natural Objects (Sammlung von Merckwurdigkeiten der Natur, 1755-1775) is shown here, with a focus on a class of mollusks called ammonites. These extinct animals are most closely related to the extant nautilus, but differ in their ridged shells, which are shown here in great detail. Persuasive arguments were made at the time of this publication that the ammonites were not truly extinct, but merely waiting to be discovered in some far-off corner of the globe. By the 19th century, the consensus view was that ammonites were in fact extinct, and that the Secondary units in which they were found represented a distinctive time in Earth’s history. Ammonites were used by savants such as Giovanni Brocchi and Alexandre Bronginart to distinguish the older Secondary units (ammonites present) from the younger Tertiary units (ammonites absent), and they continue to be used in this manner by modern geologists.
Call Number (click link to view in library catalog)
Q. 560 K75s v. 2
Authors
Knorr, Georg Wolfgang
Full Title
Sammlung von Merckwürdigkeiten der Natur und Alterthümern des Erdbodens : welche petrificirte Cörper enthält
Date
1755-1774
Publisher
A. Bieling
Location
Nürnberg
Language
German
Rights
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Type
Text
Medium
Book
Bibliographic Citation
Knorr, Georg and Walch, J.S. Emmanuel. Sammlung von Merckwürdigkeiten der Natur und Alterthümern des Erdbodens. Vol. 2. Nürnberg: A. Bieling, 1755-1774.