Matej Frantisek Calfa

22 July

Hello, I'm a frelance artist/painter from Košice, Slovakia 🇸🇰, with a profound interest in the natural history of rodents, carnivores and others.. as well as history and lores of balto-slavic and uralic societies. I will be delighted to produce an artwork for you! contact: trogopterus@gmail.com

6 Sept

My colleague Dr. Csanady and I, have published a new research. It is about cranial and mandibular shape variation in the bank vole (Clethrionomys glareolus) and how it relates to proxies on the bite force. Send me a message and Ill send you the paper! www.researchgate.net/publication/...

4 Sept

Trogontherium cuvieri by the sunset, Middle Pleistocene, Carpathian lowland

4 Sept

A terrestrially adapted beaver with agile limbs, no flattened tail and no webbed feet. Although spending much of the time on the ground, I believe it would be also seen around water bodies, perhaps also chilling (like on this recon), with that typical rodent-like chunky lying appearance.

30 Aug

an extremely rare underwater interaction: welsh catfish (Silurus glanis) attacking the beaver Trogontherium cuvieri, Middle Pleistocene, Central Europe.

29 Aug

Rigorous illustration of the european water vole (Arvicola amphibius).

26 Aug

15min sketch of the large, rather terrestrial castorid (beaver) of Pleistocene Europe, Trogontherium cuvieri. Shown next to a water body nevertheless.

9 Aug

A size chart of some forms of the "Ursus spelaeus" lineage in western Europe. Done in 2024

6 Aug

Masrasector nananubis - mongoose-sized teratodontine hyaenodont of Priabonian (Late Eocene) North Africa. Painting done in 2025.

6 Aug

Proviverra typica - proviverrine hyaenodont of Lutetian (Middle Eocene) France.

6 Aug

a small sketch

2 Aug

Eomyodon volkeri, a terrestrial eomyid rodent of Late Oligocene Europe

link.springer.comA partial skeleton of the eomyid Eomyodon volkeri Engesser, 1987 (Mammalia: Rodentia) from the late Oligocene Fossil-Lagerstätte of Enspel, Germany - Palaeobiodiversity and PalaeoenvironmentsA partial skeleton of a young adult Eomyodon volkeri from the late Oligocene of Enspel (MP 28) represents the first of this genus, which was previously known only from isolated teeth at this locality....

2 Aug

literature: link.springer.com/article/10.1...

1 Aug

Pleurolicus nelsoni, a member of the obscure entoptychine geomyids ("gophers"), that were more terrestrial than the extant gophers.

onlinelibrary.wiley.comLocomotory adaptations in entoptychine gophers (Rodentia: Geomyidae) and the mosaic evolution of fossorialitySkeletal morphology supports terrestrial to fossorial locomotory modes in extinct gophers. Their lack of ecomorphological overlap with contemporaneous taxa suggests resource partitioning as a driver ...

1 Aug

Literature: onlinelibrary.wiley.com/doi/abs/10.1...

22 July

22 July

I take commissions, the prices are simply: animal drawing (pencil + procreate) - 50€ animal painting (acrylic) - 100€ size chart of numerous animals (to scale, pencil + procreate) - 150€ All my art is backed by hours of reading scientific research. I never use AI. Thanks and goodl luck!!

29 Mar

Parapodemus, a wood mouse of Late Miocene, Europe

Apterodon langebadreae

journals.plos.orgNew Apterodontinae (Hyaenodontida) from the Eocene Locality of Dur At-Talah (Libya): Systematic, Paleoecological and Phylogenetical ImplicationsThe African Hyaenodontida, mainly known from the Late Eocene and Early Oligocene Fayum depression in Egypt, show a very poor diversity in oldest Paleogene localities. Here we report new hyaenodontidan...

Literature: journals.plos.org/plosone/arti...

Apterodon langebadreae