Metridium Field contained re-recorded versions of the songs "Revolution in the Water" and "Ampullae of Lorenzini", two tracks originally released locally in 2002 as a two-song CD under the band's previous name, Namor.
Monster in the Creek featured Mike Conroy on drums and Andy Southard on keyboards and additional vocals, giving the band three lead vocalists for a short while.
Andy Southard, who had recently departed the band, made a guest appearance playing keyboards on the title track "Metridium Field".
There they finished recording vocals and minor instrumentation with Jason Rufuss Sewell at his private studio, Nebulost Productions, in Bastrop, Texas.
The band toured the east coast and into Canada in March 2006 with label mates The Gathering, with Jason Rufuss Sewell playing keyboards and Tim Conroy performing his trumpet parts live.
The band then toured the Midwest and West coast in July 2006 with label mates Stolen Babies, a few select dates with friends Prize Country, as well as performing at the CD release of The End Records veterans Agalloch in Portland, Oregon.
Before leaving Austin, Giant Squid recorded Sutter's Fort, engineered and produced by Jason Rufuss Sewell at Nebulost Productions.
The song was released by The End Records in a limited edition (only 500 copies, 250 in beige, 250 in brick red) vinyl 7" split with San Francisco band, Grayceon, who contributed "The West".
Jackie Perez Gratz, cello player of Amber Asylum fame, joined Giant Squid in January 2007 as both vocalist and cellist.
Since Sutton was unable to relocate at the time from Eugene, OR in order to stay in the band, Zack Farwell of Grayceon stepped in for the studio session.
The Ichthyologist was self-released on February 3, 2009, via the band's Myspace and official website as a limited edition of only 1,000 copies, featuring exclusive packaging with imagery drawn by early twentieth century biologist, Ernst Haeckel.
The Ichthyologist contains guest vocal appearances by Anneke van Giersbergen (The Gathering, Agua De Annique) and Karyn Crisis (Crisis), violin by Kris Force (Amber Asylum, Neurosis), and flute by Lorraine Rath (Amber Asylum, The Gault, Worm Ouroboros), trumpet by Nate Perkins (The Lesdystics) and oboe by Cat Gratz (Jackie's sister).
A full national tour, with sister band Grayceon started July 30 in San Francisco and ended August 22 in Austin, TX.
[4] Monster in the Creek era keyboardist and vocalist, Andrew Southard, (who also performs as the solo artist, Young Aundee,) returned to the band in Spring 2013, as a full-time member.
Currently, the members of the band are divided, with Aaron, Jackie, and Zack residing in Pacifica, and Bryan and Andy living in Shingle Springs, CA east of Sacramento.
On December 1, the band played its first official show with Farwell on drums supporting for [Church of Misery] (Japan) at Harlows in Sacramento, CA.
Gregory has hinted that, while the album is predominantly historically accurate in its lyrical content, it too may be tied into his ongoing mythological story line of The Ichthyologist.