Western Trilobites Association

New WTA Additions & Modifications

Below are the recent updates to the WTA site. Please let me know if you have additional information, faunal lists, or photos of missing species.... -- Contact Richie

2011 Posts and Page Revisions

Kochiella rasettii from Carrara Formation
Lonchocephalus plena from Weeks Formation
Amecephalus piochensis from Chisholm Shale
Mesonacis fremonti from Latham Shale Formation

Entire WTA website updated to new technology and moved to domain www.westerntrilobites.com (June 2011)

2008 Posts and Page Revisions

Pogonip Group, including Fillmore Formation Trilobites Update
Inyo White Mountains Trilobites Page Update
Pioche Shale Trilobites Page Update
Cararra Formation Trilobites Page Update
Latham Shale Trilobite Page Update
Extremely Rare Bathyurellus teretus Fillmore Formation Trilobite
Olenoides pugio from Marjum Formation in Utah
Glossopleura bion Trilobites from Utah
Kochina vestina trilobites from Utah Spence Shale
Olenoides superbus from Marjum Formation
Trilobite Systematics - to be developed
Trilobite I.D. Photo Gallery
Olenellus gilberti
Chisholm Shale Trilobites
Meagher Shale Trilobites
Bathyuriscus formosus from Meagher Shale Montana
Emigrant Formation Trilobites
Onchocephalites from Emigrant Formation of Nevada
Glossopleura bion from Utah Spence Shale
Coosella sp. nov. Type 2 Trilobite from Weeks Formation
Menomonia semele Trilobite from Weeks Formation
Bythicheilus typicum from Utah Spence Shale
Utah Pierson Cove Formation Trilobites
Bathyuriscus fimbriatus from Marjum Formation of Utah
Bolaspidella wellsvillensis from Marjum Formation of Utah
Athabaskia bithus from Langston Formation of Utah
Zacanthoides n. sp. from Metaline Limestone in Washington State
Ptarmigania sp. from Metaline Limestone in Washington State
Wenkchemnia sp. from Metaline Limestone in Washington State
Genera list beginning with letter P
Genera list beginning with letter Z
Genera list beginning with letter Y
Garden City Formation Trilobites
Yokoaspis sp. from Metaline Limestone in Washington State
Ptarmiganoides sp. from Metaline Limestone in Washington State
Bright Angel Shale Trilobites
Baird Formation Trilobites
Oklahoma Trilobites
Burgess Shale Formation Trilobites
Gordon Shale Trilobites
Eastern Sierra Navada Trilobites
Genera list beginning with letter C
Genera list beginning with letter A
Washington State Trilobites
Chancia sp. from Metaline Limestone in Washington State
Swan Peak Formation Trilobites
W.T.A. pdf reference file downloads page
References page update

2007 Posts and Page Revisions

Rabbitkettle Formation Trilobites
Saline Valley Formation Trilobites
Steamboat Limestone Trilobites
Spence Shale Trilobites
Zacanthoides grabaui
Trilobite Genera beginning with letter H
Albertella longwelli
Trilobite Genera beginning with letter G
Trilobite Genera beginning with letter F
Trilobite Genera beginning with letter E
Esmeraldina sp.
Elrathina (= Ptychoparella)
Olenellus clarki
Albertella longwelli
Athabaskia howelli
Kootenia sp.
Olenoides cf. serratus
Zacanthoides n. sp.
Trilobite Genera beginning with letter Z
Trilobite Genera beginning with letter L
Survey Peak Formation, Outram Formation, and Skoki Formation Trilobites
Marjum Formation Trilobites
Lachnostoma latucelsum
Trilobite Genera beginning with letter M
Modocia brevispina
Trilobite Genera beginning with letter D
Trilobite Genera beginning with letter B
Dorypyge swasii
Bathyuriscus wasatchensis
Glyphaspis capella

Prior years new trilobite pages