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What’s This?! Gastropods

Posted by on January 26, 2014
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gastropod_01

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Example of a biological classification for a Maclurites crassus

Domain: Eukaryota  – Whittaker & Margulis,1978 – eukaryotes

 

Anatomy of an Aquatic Snail

Anatomy of an Aquatic Snail

 

From Wiki: The word “gastropod” is derived from the Ancient Greek words γαστήρ (gastér, stem: gastr-) “stomach”, and πούς (poús, stem: pod-) “foot”, hence stomach-foot. Wikipedia has an excellent article on gastropods HERE.

Link to gastropods in our area – Thanks to Caleb Scheer from Midwestpaleo.com

http://www.paleodb.org/cgi-bin/bridge.pl?a=basicCollectionSearch&collection_no=23588

Nice concise list of what has been found here. Lists some of the name changes since 1892.

Paper about gastropods

http://conservancy.umn.edu/bitstream/56284/3/MGS_FR_V3_P2_pdf2.pdf

300+ page downloadable pdf written in 1892. The “Lower Silurian” was part of the Ordovican until the mid 1900’s.

My experience in Fillmore County is that the most common gastropod to be found is the

Maclurites species

 

mac in matrix

 

water worn

water worn

 

mac 6 worn

 

mac very nice

 

group 5 macs front

 

group 5 macs back

 

Maclurites Manitobense Note closed back.

Maclurites Manitobense
Note closed back.

Maclurites crassus Note open back.

Maclurites crassus
Note open back.

Only about 1 in 50 Maclurites are Maclurites crassus that I find.

Maclurites crassus front

Maclurites crassus
front

 

Maclurites crassus back

Maclurites crassus
back

 

mac crassus poor front

 

mac crassus poor back

 

macs

 

avatar jewelry

 

mac pendent turquoise

 I have a very good post with excellent pictures on Maclurites HERE:

http://www.bluffcountryfossils.net/blog/maclurites-crassus-maclurites-trivia/

 

Second most common gastropod that I find is the

Hormatoma species

 

Nice Hormatoma

 

hormatomas 3 broken

 

hormatoma 2

 

Hormatoma 3

 

hormatoma

 

hormatomas

 

A rather unique internal mold of a Hormatoma.

A rather unique internal mold of a Hormatoma.

 

hormatoma pendant

 

Probably the third most common is the

Liospira species

 

Liospira sp. group front

Liospira backs.

Liospira backs.

 

Liospira on edge.

Liospira on edge.

These remind me of “skipping stones” because of their distinct flatness.

Fusispera species

 

F with shell

 

F with shell back

 

Fusispira inflata

 

Fusispiera 3

 

fusispira 2

 

Fusispera sp. group front

Fusispera "backs"

Fusispera “backs”

 

fusci pendant

 

 

Holopea species

 

Holopea pyrene

Holopea pyrene

 

Holopea bottoms

Holopea bottoms

 

holopea front single

 

holopea back single

 

Holopea necklace

 

 

Trochonema species

 

Trochonema sp.

Trochonema sp.

 

bottom

bottom

 

Trochonema sp. 2 front

 

 

Subulites species

 

subulite

 

In Context of the Matrix.

In Context of the Matrix.

 

 

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