Thecodontion is an Atmospheric Death Metal band from Italy, established in 2016. With an EP, two splits, and a full-length release. On April 4th, 2025, the band unveiled their debut compilation, titled “Lower Mesozoic Exhibit,” which was released by Chaos Records.

Thecodontion, Lower Mesozoic Exhibit Review: This review will evaluate every aspect of the album, from its intricate musical composition to its production. Our analysis will provide valuable insights to help you determine if this album is worth adding to your collection.

The First Three Sins, The Summary

The First Sin, The Strings/Keys: Omits the guitars, and favours for duel bass bombardment, featured muddy-distortion, fuzz-laden bass tones… Second Sin, The Vocals: Provides the listener with harsh, no-clean singing. The Third Sin—The Percussions: The drum work, which is programmed, but delivers tight, aggressive, typically featuring blast-beast, double-kick patterns…

The Fourth Sin, Overall Discussion

As soon as the listener presses that play button, the opening piece, Desmatosuchus spurensis, greets the listener with sheer aggression and an atmosphere that continues to the closing piece.

The Lower Mesozoic Exhibit showcases eight tracks, each inspired by a prehistoric creature, weaving together scientific facts and poetic visuals in its lyrics. The band crafts an aggressive yet atmospheric sound using distorted bass lines, drums, and guttural vocals, intentionally omitting guitars to highlight their unique style known as ‘Prehistoric Metal of Death.’

Thecodontion‘s album, Lower Mesozoic Exhibit, roars like a ferocious T. rex, unleashing music that penetrates deep within. The flawless composition and arrangements, both instrumental and vocal, are a testament to perfection. You’ll discover that the band’s approach shuns conventional song structures, opting instead for narrative-driven pieces that capture the awe and enigma of the ancient world. Simultaneously, this artistic creation offers a science-infused lyrical experience, rich in distortion and intensity, seamlessly merging avant-garde death metal with progressive black and death metal.

Thecodontion showcases a robust production that feels both contemporary and polished, yet the audio quality exudes a lo-fi, underground essence. The careful layering of instrumentals adds depth, resulting in a raw, primitive sound. The composition centres around bass guitars—embracing the richness of bass while intentionally omitting traditional guitars. This choice proves effective, as the dual bass arrangement features one instrument delivering rhythmic low-end and distortion, while the other takes on melodic and harmonic responsibilities.

The thick, distorted bass tones serve as both the backbone and the forefront of the sound, frequently mimicking the essence of guitars. Meanwhile, the bass lines are rich, intricate, and layered, delivering a sense of weightiness alongside melodic structure. The drumming is precise and fierce, deeply influenced by death and black metal, usually incorporating blast beats, double-kick rhythms, and tempo changes that align with the evolving themes of ancient times. The vocals are aggressive, characterized by deep guttural growls, sometimes complemented by piercing high-pitched shrieks for added contrast.

Italy’s Thecodontion presents Lower Mesozoic Exhibit, a compilation of their early material, featuring the debut demo and the Jurassic EP. Until now, these ferocious recordings have only been available on limited analogue formats, but they are finally compiled into one release, showcasing the band’s raw and chaotic early sound.
With a foundation in war metal, grindcore, and prehistoric death metal, Thecodontion forgoes guitars entirely, relying on bass-driven destruction to channel the ancient and primal violence of their themes. The lyrics delve into the archosaurs, pterosaurs, and sauropods of the Mesozoic era, perfectly complementing the aggressive musical approach. For fans of Antediluvian, Cryptae, and Mitochondrion, this is an essential piece of extreme metal history. [Chaos Records]

Overall, Thecodontion’s album, Lower Mesozoic Exhibit, showcased a solid fruit of art release and devilmanship achievement, demonstrating that music can thrive without the presence of guitars. While the album initially felt fresh and engaging, the overwhelming feedback created a sense of repetition, leaving a resonant echo in my ears and a heavy atmosphere that had my head nodding in rhythm.

If you’re looking for something dirty, distorted, and heavy and brutal — look no further.

The album comes to an end with the last song, Breviparopus taghbaloutensis (Legacy of the Trackmaker Unknown), as the music takes its musical breath. We want to give a shoutout to Chaos Records for letting us review Thecodontion and their album Lower Mesozoic Exhibit. Now, we’re going to wrap it up by talking about the final three sins and concluding the review.

The Fifth Sin, The Memorabilia

For me, Thecodontion and their album, Lower Mesozoic Exhibit, exhibit a raw energy and unapologetic intensity that truly resonates within me, making it a standout and something different from ordinary. I find myself eager to explore more of their discography, as the depth and creativity showcased in this compilation suggest, there are even more gems waiting to be unearthed. Again, for me, a fruit of art release and devilmanship.

Thecodontion – Lower Mesozoic Exhibit Review

The Sixth Sin, The Artwork

The artwork is some-sort of fossil, kind fits their “prehistoric metal of death”

The Seventh Sin, Disrelish

There is nothing to dislike in the musical offerings of Thecodontion and their album Lower Mesozoic Exhibit; thus, we conclude our review of Thecodontion and their album Lower Mesozoic Exhibit. I would like to take this opportunity to express my gratitude for your time in reading this article, and I encourage you to explore the work of Chaos Records and the band Thecodontion.

Track-Listing

01. Desmatosuchus spurensis (Linked Loricata of Spur)
02. Erythrosuchidae (Vermillion Digitigrade)
03. Longisquama insignis (Skeletal Analysis of a Kyrgyz Diapsid)
04. Stagonolepis (Robertsoni / Wellesi / Olenkae)
05. Normannognathus wellnhoferi (Crests)
06. Rhamphorhynchus muensteri (Wingset)
07. Barosaurus lentus (Sundance Sea Stratigraphy)
08. Breviparopus taghbaloutensis (Legacy of the Trackmaker Unknown)

Members

G.R.F. — Vocals, Songwriting
G.D. — Bass, Lyrics, Arrangements
Francesco Comerci — Drum programming (session member)