What is a "lumachelic limestone"?

[DrDu]

In the description of a fosil site, I ran into the term "lumachelic limestone". Does anybody know, what this means?

 

[Bystander]

Googling, I see the source of your consternation; "lumachelic" means "lumachelic." There is some suggestion that "mechanism of deposition" is involved in the definition, but I guarantee nothing at this stage of my inquiry/investigation of this somewhat circular "argument?" More a "mechanical" than sedimentary/chemical/"Bahamian whiting" type origin.

Paging @davenn

 

[DrDu]

Finally, I found an explanation of this term in a thesis:
http://repository.uamerica.edu.co/bitstream/20.500.11839/421/1/5091182-2016-2-IP.pdf
NIVEL LUMAQUELICO: se denomina lumaquela a toda roca sedimentaria, normalmente de matriz caliza, que contiene una proporción importante de restos de conchas de moluscos o esqueletos de otros animales fosilizados. El nivel 31 lumaquelico comprende una capa de rocas sedimentarias que guardan en su interior restos de seres vivos descompuestos y fosilizados.

 

[JBA]

Here is the tranlation:

LUMAQUELIC LEVEL: Lumaquela is called any sedimentary rock, usually of limestone matrix, which contains a significant proportion of shell remains of mollusks or skeletons of other fossilized animals. The level 31 lumaquelico comprises a layer of sedimentary rocks that keep in their interior remains of decomposed and fossilized living beings.

In other geologic terms it is "fossiliferous" rocks or formations

Sorry, I just couldn't resist adding this

 

[Baluncore]

So how is the term lumachelic derived. What is the Etymology?
It appears to mean “made from broken and crushed fragments of shells”.
Does it look like broken fragments of macaroni?

 

[DrDu]

Does it look like broken fragments of macaroni?

I guess that's not so far from reality. "Lumachelli" is a kind of pasta and "Lumaca" means snail in italian.
Strangely enough in zoology "lumacus" is a genus of slugs.