This is Mazon Monday post #11.

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The Illinois State Museum in Springfield, IL has a significant collection of Mazon Creek fossils.  Most of the collection stems from a collection donated by George Langford in the 1930s.  The Mazon Creek Collections Database is a digitzed resource accessible on the museum’s website.  In it, you will find specimens cataloged with source, locality, and even when it was collected.  You can search for a specific species or browse the collection a few entries at a time.  There are thousands of specimens with many breathtaking photos.  It’s a great resource, check it out!

Here is the entry for an Alethopteris serli specimen.

Full record for specimen number 14254

	Additional Information Images: medium (72 dpi, 90.5KB) large (600 dpi, 2.4MB) Catalog Data: Show brief record	Additional Information		Images:	medium (72 dpi, 90.5KB) large (600 dpi, 2.4MB)	Catalog Data:	Show brief record
		Additional Information
Images:	medium (72 dpi, 90.5KB) large (600 dpi, 2.4MB)
Catalog Data:	Show brief record

Extended catalog data
Determination:	Alethopteris serli	find similar
Describer:	Brongniart	find similar
Type Status:		find similar
Figured In:		find similar
Geologic Unit:	Francis Creek Shale	find similar
Geologic Era:	Pennsylvanian	find similar
Special Collection:	Langford	find similar
Keywords:	seed fern	find similar

Standard catalog data
Catalog Number:	14254	find similar
Accession Number:	1939-3	find similar
Field Numbers:		find similar
Material:	fossil	find similar
Received From:	Langford, George Sr.	find similar
Date Received:	April 3, 1939	find similar
Collector:	Langford, George Sr. and Langford, George Jr.	find similar
When Collected:	June 1938	find similar
Locality:	Will County, Illinois	find similar
Remarks:		find similar
Material Assigned To:	Geology	find similar
Photo Negative Number:		find similar
Manner Of Acquisition:	Gift	find similar
Date Of Entry:	Jan. 29, 1954	find similar
Entered By:	MDT	find similar