Fossil Arthropods

Middle Miocene Barstow Formation--17 Million Years Old

Fossil Insect Canyon, Mojave Desert, California

This is a silcified, fully three-dimensional butterfly caterpillar (undescribed in the scientific literature), order Lepidotera, dissolved out of a calcareous concretion from the middle Miocene Barstow Formation of Fossil Insect Canyon, California, by Mr. John E. Jenkins. Image courtesy the Natural History Museum of Los Angeles County, under the terms of the Attribution 4.0 International (CC BY 4.0) license. I edited and processed all the images with photoshop.

A silcified, fully three-dimensional adult jumping plant louse (undescribed in the scientific literature), family Psyllidae, dissolved out of a calcareous concretion from the middle Miocene Barstow Formation of Fossil Insect Canyon, California, by Mr. John E. Jenkins. Image courtesy the Natural History Museum of Los Angeles County, under the terms of the Attribution 4.0 International (CC BY 4.0) license. I edited and processed all the images with photoshop.

A silcified, fully three-dimensional adult spider, Argenna fossilis, dissolved out of a calcareous concretion from the middle Miocene Barstow Formation of Fossil Insect Canyon, California, by Mr. John E. Jenkins. Image courtesy the Natural History Museum of Los Angeles County, under the terms of the Attribution 4.0 International (CC BY 4.0) license. I edited and processed all the images with photoshop.

A silcified, fully three-dimensional adult springtail, Entomobrya kirkyae, dissolved out of a calcareous concretion from the middle Miocene Barstow Formation of Fossil Insect Canyon, California, by Mr. John E. Jenkins. Image courtesy the Natural History Museum of Los Angeles County, under the terms of the Attribution 4.0 International (CC BY 4.0) license. I edited and processed all the images with photoshop.

A silcified, fully three-dimensional larval water mite, Protoarrenurus convergens, dissolved out of a calcareous concretion from the middle Miocene Barstow Formation of Fossil Insect Canyon, California, by Mr. John E. Jenkins. Image courtesy the Natural History Museum of Los Angeles County, under the terms of the Attribution 4.0 International (CC BY 4.0) license. I edited and processed all the images with photoshop.

One of the more remarkable and fascinating fossil occurrences I have personally seen. Here is a silcified, fully three-dimensional adult midge, Dasyhelea australis antiqua (with eyes that are excellently preserved) sitting on a midge pupae (perhaps the very three-dimensional pupa it emerged from), dissolved out of a calcareous concretion from the middle Miocene Barstow Formation of Fossil Insect Canyon, California, by Mr. John E. Jenkins; and note that the adult midge is actually holding something with two of it legs. Image courtesy the Natural History Museum of Los Angeles County, under the terms of the Attribution 4.0 International (CC BY 4.0) license. I edited and processed all the images with photoshop.

A silcified, fully three-dimensional adult seed bug (a true bug, in entomological taxonomic nomenclature), family Lygaedae, dissolved out of a calcareous concretion from the middle Miocene Barstow Formation of Fossil Insect Canyon, California, by Mr. John E. Jenkins. Image courtesy the Natural History Museum of Los Angeles County, under the terms of the Attribution 4.0 International (CC BY 4.0) license. I edited and processed all the images with photoshop.

Two silcified, fully three-dimensional adult thrips, family Thysanoptera, dissolved out of a calcareous concretions from the middle Miocene Barstow Formation of Fossil Insect Canyon, California, by Mr. John E. Jenkins. Image courtesy the Natural History Museum of Los Angeles County, under the terms of the Attribution 4.0 International (CC BY 4.0) license. I edited and processed all the images with photoshop.

A silcified, fully three-dimensional adult ant, family Hymenoptera, dissolved out of a calcareous concretion from the middle Miocene Barstow Formation of Fossil Insect Canyon, California, by Mr. John E. Jenkins. Image courtesy the Natural History Museum of Los Angeles County, under the terms of the Attribution 4.0 International (CC BY 4.0) license. I edited and processed all the images with photoshop.

A silcified, fully three-dimensional adult fly, family Diptera (note the well preserved eyes peeking out at right), dissolved out of a calcareous concretion from the middle Miocene Barstow Formation of Fossil Insect Canyon, California, by Mr. John E. Jenkins. Image courtesy the Natural History Museum of Los Angeles County, under the terms of the Attribution 4.0 International (CC BY 4.0) license. I edited and processed all the images with photoshop.

Three silcified, fully three-dimensional midge pupae, Dasyhelea australis antiqua, dissolved out of a calcareous concretion from the middle Miocene Barstow Formation of Fossil Insect Canyon, California, by Mr. John E. Jenkins. Image courtesy the Natural History Museum of Los Angeles County, under the terms of the Attribution 4.0 International (CC BY 4.0) license. I edited and processed all the images with photoshop.

A silcified, fully three-dimensional adult water beetle, Shistomerus californense, dissolved out of a calcareous concretion from the middle Miocene Barstow Formation of Fossil Insect Canyon, California, by Mr. John E. Jenkins. Image courtesy the Natural History Museum of Los Angeles County, under the terms of the Attribution 4.0 International (CC BY 4.0) license. I edited and processed all the images with photoshop.

A silcified, fully three-dimensional adult midge, Dasyhelea aaustralis antiqua (with antenae and eyes well preserved), dissolved out of a calcareous concretion from the middle Miocene Barstow Formation of Fossil Insect Canyon, California, by Mr. John E. Jenkins. Image courtesy the Natural History Museum of Los Angeles County, under the terms of the Attribution 4.0 International (CC BY 4.0) license. I edited and processed all the images with photoshop.

A silcified, fully three-dimensional larval water beetle, Shistomerus californense, dissolved out of a calcareous concretion from the middle Miocene Barstow Formation of Fossil Insect Canyon, California, by Mr. John E. Jenkins. Image courtesy the Natural History Museum of Los Angeles County, under the terms of the Attribution 4.0 International (CC BY 4.0) license. I edited and processed all the images with photoshop.

Return to Fossil Insects And Vertebrates On The Mojave Desert, California