@ichnologist
Traces & trace fossils. Wrote 'Life Sculpted' (2023), 'Dinosaurs Without Bones' (2014), 'The Evolution Underground' (2017), & more. Hubby, Trekkie, reading, cooking, craft-beer imbibing, childless cat dude, ๐ซAI. ๐งช๐พ๐ฆ๐ฆ๐ชจโ๏ธ๐๐โ๏ธ ๐ https://ajmartinauthor.com
๐ฆ Free Webinar: 200 Years of Vertebrate Paleontology in South Asia
Join Dr. Advait Jukar for a fascinating look at the history and future of vertebrate paleontology in South Asia.
๐
March 11 | 12-1 PM ET
๐ Register: anatomy.org/ANATOMY/Meet...
Cannot tell you how depressing it is to read that people are simply refusing to read nonfiction after youโve worked really hard to write a nonfiction book you believe in, in case anyone is wondering why Iโm posting so much about my book which comes out in a few weeks #BookSky
During the Silurian period, over 400 million years ago, the West Midlands was covered by a shallow, tropical sea. Fossil evidence for this includes this Marsupiocrinus genus of extinct crinoid (sometimes called a sea lily), found in the Much Wenlock Formation in Dudley.
#LapworthRocks #FossilFriday
ๆฏๅบฆใใชใใฟไธ่ถๅ้ง
ใงใใใใใใใใใblueskyใงใฏๅบใใฆใชใใฃใใใใใใชใ
ๅฐไธ้ใปไธ่ถๅ้ง
ใฎๆนๆญๅคใฏใใคใ็ฃใธใฅใฉใคใจใญใผใฎๆฑใใใผใผใผใฃใจไธฆใใงใใฆๅฃฎ่ฆณใงใ๏ผ่ชฐใๆฌๆฐๆฐใใฆใใ ใใ๏ผ
ไบบ็ฎใๅฐใชใใขใณใขใใคใๆขใๆพ้กใชใฎใงใขใณใขใใคใใญในใฎๆใชใฉใซใๅฉ็จใใ ใใ
๏ผTokyo, Japan๏ผ
#่กใฎไธญใง่ฆใคใใใใใ็ณ
#็ณๆใจ่กๅ็ณ
#้ๆๆฅใ ใใๅ็ณ่ฒผใ
#FossilFriday Verbeekiella australis, among the last of the Palaeozoic โhorn coralsโ belonging to the class Rugosa, from the Permian of Timor. The function of the unusual axial structure is unclear according to my colleague Brian Rosen.
A drawer full of ~3" long samples in low flat cardboard boxes. Sitting atop its box, and overlapping several others, is a slab of kinked, foliated rock.
A #FridayFold I found in a drawer full of archived samples at the state geological survey. โ๏ธ
Volcanos & fossils๐๐ฒ๐ณ๐
Woodcock & al in press | The #fossil localities of the Piedra Chamana Fossil Forest (Eocene, #Peru): a prospectus for research and conservation | Acta Palaeobotanica: acpa.botany.pl/The-fossil-l...
#FossilFriday :)
Good timing for this M4.9 earthquake from an educational perspective, as I just covered environmental effects of fracking in my 'Environmental Geology' class yesterday, which included fracture-induced seismicity. ๐งช๐ชจโ๏ธ๐ข๏ธ
A large block of rock, roughly circular in cross section.
#FossilFriday: a lump of lycopod. Part of the trunk of a large Carboniferous tree in sandstone, situated outside The Sill, the Northumberland National Park visitor centre.
Polished section of a fossil fern showing the internal structure of the trunk. There is a thick mantle of small roots (R) surrounding the trunk. The vascular tissues of several leaf bases are visible. Palรคontologisches Museum Mรผnchen public exhibit.
Of course the best fossils are always โจPaleozoic plantsโจ This is a polished section of a Psaronius tree fern from the early Permian (~290 million years) of the Czech Republic ๐ฟโ๏ธ We can see the root mantle (R) and the base of several leaves (arrows). Happy #FossilFriday & #FernFriday! #paleobotany
reconstruction of Arborea elegans as a long narrow upright frond on a microbially colonized seafloor (white rings)
Arborea elegans showing long narrow frond with short orthogonal brabches and a wide flat basal disc
Another #FossilFriday and another new Nfld. Ediacaran for you to enjoy hot off the press. Introducing Arborea elegans. This is the first fossil from a rich new site near #Torbay & #MiddleCove just north of St. Johnโs. An area always considered unfossiliferous, but discovered by Pascal Olschewski๐งต
A nice book-related surprise arrived yesterday, & appropriately on #WorldBookDay: author copies for the paperback edition of 'Tracking the Golden Isles' with @ugapress.bsky.social! It's a lovely edition & available for preorders, release date March 15. www.ugapress.org/978082037806... ๐งช๐โ๏ธ๐๐ฆช๐ฆ๐ชฒ๐๐๏ธ๐พ
Map for Stand Up for Science rally in Atlanta, GA, Saturday March 7, 3pm Corner of Ralph McGill and Garden Park Atlanta, GA, just south of the Historic Fourth Ward Park Splash Pad
ATLANTA!!! Visit this link:
zurl.co/BCNJg to learn more about your local SATURDAY MARCH 7TH RALLY to TAKE BACK OUR SCIENCE!
See map for location! Rally starts at 3pm! (not 1PM)
#March7Atlanta
#standupforscience
#science
#savescience
T'Pol from Enterprise is pictured. She's standing in a cargo bay, camera is looking up at her. She looks serious, as per usual. Closed caption reads, "How's your dog?" (Also everything is very blue because I suck at taking TV screenshots)
[Exit Murderer.]
Sheโs like a liar gone to burning hell
Hey #scicomm folks!
I am looking for a diverse crew to represent their fields with their head shot and a fun fact they like from their field of study, but SPECIFICALLY:
-a geologist/volcanist or gemologist
-a zoologist
-astronomer
-a paleontologist
-a structural engineer
"This violent reaction was not the way science was supposed to be functioning" - a fascinating story about a fight between (older, male) scientists w/ a woman over dinosaur color. I wish the author had called out the sexism more overtly; still a good read.๐ฉโ๐ฌ#scicomm nautil.us/when-scienti...
Pterocoma pennata, a comatulid ("feather star") from the Jurassic of Germany
Ginkgoites huttoni, a ginkgo from the Jurassic of England.
Cymatophlebia longialata, a dragonfly from the Jurassic of Germany
Pterodactylus antiquus, a pterosaur from the Jurassic of Germany.
Look at all these beautiful flattened Jurassic friends! โ๏ธ๐ค All from the Palรคontologisches Museum Mรผnchen public exhibit -names in alt-text #fossil #paleontology #paleobotany
I propose the following names for the planned synthetic biological recreations of various extinct superstars:
๐ฆฃ The Lammoth (after Colossal CEO Ben Lamm)
๐ฆค The DoDonโt (de-exctincted Dodo)
๐
The Trylacine (marks for good effort)
You are welcome.
Museum sign showing a roaring sabretooth cat. A small child is included for size comparison, and looks like he's about to boop it.
DO NOT BOOP THE KITTY
Looks like convergent evolution to me, too, & another marsupial-placental example of this for teaching purposes. Such a cool find.
Diversity in the evolution of ants.
Diversity in the evolution of ants.
Fossil amber reveals the secret lives of Cretaceous ants
Fossil amber syninclusions may give us hints of the ecosystems of the past.
Description of fossil amber with ant syninclusions ๐งช
www.frontiersin.org/journals/eco...
A scanning electron micrograph shows the planktic foraminifer Parvularugoglobigerina eugubina. Its appearance about 6,400 years after the Chicxulub impact defines the upper boundary of the first planktic foraminiferal biozone following the K/Pg mass extinction.
New species evolved within a few thousand years of the Chicxulub Impact ๐งช
pubs.geoscienceworld.org/gsa/geology/...
The immediate aftermath of the K/Pg mass extinction (ca. 66 Ma) in the marine realm was characterized by the initial recovery of productivity and the originations of new species.
Wow is right! Not one but TWO "Lazarus" mammal species, still alive in New Guinea?! Also happy to see Flannery worked with indigenous elders & U. of Papua researchers, & how traditional ecological knowledge was key in documenting these discoveries.
Although I could only give them a brief synopsis of these significant historical events that all happened in my lifetime, I could see the students reacting like "Whoa!" when realizing how oil & gas deposits were a major factor in armed conflicts in the Middle East over the past ~50 years. 2/2
Had extra time at end of class today, so to help students understand recent history of U.S.-Middle East geopolitics (= "geology" politics), told them about: Iranian Islamic revolution & U.S.-embassy hostage crisis in late '70s; arms deal with Iran; Iran-Iraq War; Desert Storm; Iraq War; & now. 1/2
Pacific Ocean Floor by MARIE THARP, Bruce Heezan, and Heinrich Berann, *as published in* the National Geographic. There, fixed it.๐
