Thalassocystis striata Alga Fossil

 

Here is an alga fossil called Thalassocystis striata (Taggart & Parker, 1976). It existed in the Silurian Period (443-417 million years ago). The fossil was found in Michigan, USA.

The fossil was on display in the Evolving Planet section of The Field Museum of Natural History in Chicago Illinois, USA as of August 2020. Accession number is PP43982.

Reference:

A NEW FOSSIL ALGA FROM THE SILURIAN OF MICHIGAN by Ralph E. Taggart and Lee R. Parker American Journal of Botany, Volume 63, Issue 10 November-December 1976 pages 1390-1392

Silurian Buthotrephis Alga Fossil

 

Here is an alga fossil called Buthotrephis sp. (Hall, 1847). It existed in the Silurian Period (443-417 million years ago). The fossil was found in Ontario Canada. 

The fossil was on display in the Evolving Planet section of The Field Museum of Natural History in Chicago Illinois, USA as of August 2020. Accession number is PP46685.

Rhizomorphia Silurian Alga Fossil

 

Here is an alga fossil called cf. Rhizomorphia sp. (Matthew, 1908). It existed in the Silurian Period (443-417 million years ago). The fossil was found in Herkimer County, New York USA. 

The fossil was on display in the Evolving Planet section of The Field Museum of Natural History in Chicago Illinois, USA as of August 2020. Accession number is PP46694.

Reference:

1908, Matthew, On Some Species of Silurian and Devonian Plants, Trans. Act. Roy. Soc. of Canada

Buthotrephis newlinii Alga Fossil

 

Here is an alga fossil called Buthotrephis newlinii (White, 1902). It existed in the Silurian Period (443-417 million years ago). The fossil was found in Kokomo, Indiana USA. It was probably found in the Wabash Formation. The genus was named by James Hall in 1847.

The fossil was on display in the Evolving Planet section of The Field Museum of Natural History in Chicago Illinois, USA as of August 2020. Accession number is UC875.

Reference:

White, D. (1902). Two new species of algae of the genus Buthotrephis, from the Upper Silurian of Indiana. Proceedings of the United States National Museum, 24, 265–273. See this link. The original document can be found here: https://repository.si.edu/bitstream/handle/10088/13582/USNMP-24_1255_1901.pdf?sequence=1&isAllowed=y

Below is an image for David White's Buthotrephis newlinii published in 1902 as plate XVIII.

Palaeonitella Green Alga Fossil

 

Here is a green alga fossil called Palaeonitella sp. (Kidston & Lang, 1921). It existed in the Devonian Period (417-354 million years ago). The fossil was found in Wyoming USA.

The fossil was on display in the Evolving Planet section of The Field Museum of Natural History in Chicago Illinois, USA as of August 2020. Accession number is PP49113.