Aguirre Urreta Collection

Endoceras cancellatum, nautiloid
A long-shelled fossil invertebrate from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta. Specimen held at the Natural History Museum, London

Actinoceras sp. nautiloid
An extinct, long-shelled or orthoconic marine fossil invertebrate from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Aulacoceras sulcatum, belemnite
An extinct marine fossil known as a belemnite. These are invertebrates from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Vestinautilus cariniferous, nautiloid
An extinct, coiled-shelled marine fossil invertebrate from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Wasatchites tridentinus, ammonoid
An extinct, marine fossil invertebrate with a heavily ribbed, coiled shell from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Gomphoceras pyriforme, nautiloid
An extinct, egg-shaped marine fossil invertebrate from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Plesioteuthis sp. belemnite
An extinct marine fossil known as a belemnite. These are invertebrates from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Acanthoteuthis (Belemnoteuthis) speciosus, belemnite
An extinct, marine fossil invertebrate from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Gonioclymenia laevigata, ammonoid
An extinct, marine fossil invertebrate from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Prolecanites compressus, goniatite

Kosmoclymenia undulata, ammonoid
An extinct, marine fossil invertebrate from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Aphelaeceras mutabile, nautiloid
An extinct, coiled-shelled marine fossil invertebrate from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Schroederoceras bandonis, cephalopod
An extinct, marine fossil invertebrate with a coiled shell from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Pronorites cyclolobus, ammonoid
An extinct, marine fossil invertebrate from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Manticoceras acutum, ammonoid
An extinct, marine fossil invertebrate from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Phragmoceras sp. nautiloid
An extinct marine fossil invertebrate from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Sepia craveri, fossil cuttlefish
An extinct marine fossil invertebrate, a relative to todays cuttlefish from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Actinoceras oreleriseptum, nautiloid
An extinct, long-shelled or orthoconic marine fossil invertebrate from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Goniatites sp. goniatite
An extinct, marine fossil goniatite from the class Cephalopoda belonging in the phylum Mollusca (molluscs), sub-class Ammonoidea. Photographed by Beatriz Aguirre-Urreta

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"Aguirre Urreta: A Journey through Ancient Seas" Dive into the depths of history with Aguirre Urreta, as we explore the fascinating world of prehistoric marine creatures. From Endoceras cancellatum to Aphelaeceras mutabile, these names may sound unfamiliar, but they represent a diverse array of ancient cephalopods that once roamed the oceans. Imagine encountering Actinoceras sp. Nautiloid, its graceful shell spiraling through the water like a delicate work of art. Or perhaps you would come across Aulacoceras sulcatum, a belemnite with intricate ridges adorning its fossilized remains. Vestinautilus cariniferous stands out among its peers with its distinctive keeled shell design. This nautiloid species was truly a marvel to behold in its prime. Travel further back in time and witness Wasatchites tridentinus, an ammonoid characterized by three prominent spines on each segment of its coiled shell. Its unique appearance is sure to captivate any fossil enthusiast. Gomphoceras pyriforme takes center stage with its pear-shaped body and smooth exterior. This nautiloid's elegant form showcases nature's ability to create beauty even in the most ancient creatures. Plesioteuthis sp. , another belemnite species, reveals itself as an intriguing puzzle waiting to be solved. Its fossils provide valuable insights into the evolution and behavior of these enigmatic organisms. Acanthoteuthis (Belemnoteuthis) speciosus boasts elaborate ornamentation on its slender body—a testament to nature's endless creativity when it comes to adaptation and survival strategies. Gonioclymenia laevigata presents itself as an ammonoid with sleek curves and intricate patterns etched onto every chamber wall—an exquisite example of Mother Nature's artistic prowess. Prolecanites compressus showcases goniatite characteristics with its tightly coiled shell and intricate sutures.