Joseph/Agustin:

Coculiten is in present days part of the municipality of Momax, Zacatecas, right on the border with Colotlan, Jalisco. Before a seperate parrish was set up in Momax, baptisms from this town were performed in Tlaltenango.

That being said, Agustin, you are right that many of the registro civil records for Momax are missing... i.e. only the following records are filmed by the FHL:

Nacimientos 1876-1882, 1912-1913 -- Matrimonios 1875-1877, 1879-1880, 1885-1887, 1912-1915 -- Defunciones 1871-1876, 1878-1886, 1912

VAULT INTL Film 2245129 Items 1 - 8

However, the church records are a bit more promising, in particular all of the baptisms for the years in question exist:

Bautismos 1878-1892 FHL INTL Film 443991
Bautismos 1892-1905 FHL INTL Film 443992

as well as the marriage films, though you will have to sift through informacion matrimonial:

Información matrimonial 1874-1877 FHL INTL Film 444000
Información matrimonial 1879-1886 VAULT INTL Film 444001

this has been a confusion to me. In Jalisco and in Zacatecas I have seen
on maps a Coculitlen/Coculiten and then a Cuculiten/Cuculitlen (not sure
if the "tlen" is correct on either). Anyway I know that there was a
Cuculitlen in Zacatecas and those records are sometimes found in the
Tlaltenango films. Go to www.familysearch.org and find your local Family
History Center, pay them a visit and order some film:

Title
*Registros parroquiales, 1630-1961*

Authors
*Iglesia Católica (Tlaltenango de Sánchez Román, Zacatecas) (Main Author)*

Notes
*Microfilm de manuscritos en Tlaltenango de Sánchez Román.
Catholic church parish registers of baptisms, confirmations, marriages
and deaths from Tlaltenango de Sánchez Román, Zacatecas, Mexico.
Text in Spanish.*

Subjects
* México, Zacatecas, Tlaltenango de Sánchez Román - Church records*

Format
* Manuscript (On Film)*

Language
* Spanish*

Publication
* Salt Lake City, Utah : Filmados por The Genealogical Society of Utah,
1961-1978*

Physical