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Posts by Jon Hendricks

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The flounder effect: disparities in taxonomic and ecological study intensity across extant and fossil marine organisms hamper conservation - npj Biodiversity npj Biodiversity - The flounder effect: disparities in taxonomic and ecological study intensity across extant and fossil marine organisms hamper conservation

New paper out:

The flounder effect: disparities in taxonomic and ecological study intensity across extant and fossil marine organisms hamper conservation

with @fossildetective.bsky.social, @bigfacecats.bsky.social, Curtis Congreve & @jonhendricks.bsky.social
www.nature.com/articles/s44... 🦑⚒️

2 months ago 33 20 2 6
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2.1 Reading Trees Chapter contents: Systematics — 1. Taxonomy — 2. Phylogenetics —— 2.1 Reading trees ← —— 2.2 Building trees —— 2.3 Character mapping —— 2.4 Phylogenetic trees and classificationParts of a tree A phylo...

If you're a #teacher interested in a great #openaccess write up on reading #phylogenetic trees, check out www.digitalatlasofancientlife.org/learn/system... created by @jonhendricks.bsky.social and Elizabeth Hermsen.

5 months ago 41 18 0 0

Congratulations Kiera!!

7 months ago 2 0 0 0
Cover image of the latest issue of the journal Bulletins of American Paleontology, showing species of Danian gastropods from Maryland.

Cover image of the latest issue of the journal Bulletins of American Paleontology, showing species of Danian gastropods from Maryland.

Incredibly proud to see this project hit the light of day! Begun in the 1980s as the M.S. research of D. Govoni, I've led the charge with Dave the past few years to revise and expand his unpublished thesis and ensure that this diverse gastropod fauna received the formal description it deserved. 🧵

7 months ago 32 12 3 1

If your work involves Big Palaeo Data, you should be *begging* people to publish little local studies of new observational data, jfc. Without that you have absolutely bupkiss. I say this as someone with a foot in both camps:

7 months ago 52 13 3 1

Just one more week (till 5 Sept) to apply for the postdoc position with me at UA Museums' Department of Museum Research and Collections. NSF-project together with Jill Leonard-Pingel, @odealab.bsky.social, and @sethf.bsky.social focused on marine ecosystems in Panama.

bsky.app/profile/pale...

7 months ago 9 7 0 0
Screenshot of text that reads, "Inhabits Maine, where it was found by Mr. T. R. Peale, at the mouth of a river, having probably been brought there by an otter.

Screenshot of text that reads, "Inhabits Maine, where it was found by Mr. T. R. Peale, at the mouth of a river, having probably been brought there by an otter.

Type locality of Pecten pealeii Conrad, 1831 [=Chlamys islandica (Müller, 1776)] is the mouth of a river in Maine maybe involving an otter.

8 months ago 0 0 0 0
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Marvelous Mollusks — Museum of the Earth Now Open!

The Online Version of the Marvelous Mollusks exhibit I helped with is now live!
I expect more photos will be added in the next few weeks of the 400+ modern and fossil specimens on exhibit!

🐚🐌🦪🦑🐙⚒️
#Ithaca #SavePRI #MuseumoftheEarth
#invertebrates

www.museumoftheearth.org/exhibit/marv...

8 months ago 32 9 1 3
A sgraffito ceramic sculpture done with black and orange underglazes, gold gilding, and my signature California poppies motif. The sculpture is that of a sauropod dinosaur that has a smaller sauropod on it's back. The larger sauropod's neck is craned towards the smaller one as though they're about to boop noses.

A sgraffito ceramic sculpture done with black and orange underglazes, gold gilding, and my signature California poppies motif. The sculpture is that of a sauropod dinosaur that has a smaller sauropod on it's back. The larger sauropod's neck is craned towards the smaller one as though they're about to boop noses.

A Mother's Love Totem 🍃🦕✨💖

My piece in the upcoming Giant Robot Store Reanimated exhibition! Can you guess the inspiration?

Art will be available online Saturday, July 5th at 11am PT via the GR webstore here:
www.giantrobot.com

#art #pottery #SciArt

9 months ago 422 80 4 4
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This is a fun multi institution project looking at recent past environmental change that caused extinction to predict responses to modern climate change in the marine realm. Modern and fossil colab. I was Jon's prior postdoc on the same project and would be happy to answer questions in DM. ⚒️ 🦑

9 months ago 7 4 1 0
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Codex Eurypterida: A Revised Taxonomy Based on Concordant Parsimony and Bayesian Phylogenetic Analyses Eurypterids, also known as sea scorpions, were aquatic chelicerate arthropods that were important components of Paleozoic marine and freshwater ecosystems from the Ordovician to the Permian. The group...

It's finally out! 200 years since the description of Eurypterus remipes, the first eurypterid named in the scientific literature, I present a summary of the history of eurypterid research and an updated taxonomy of every known species.🧪⚒️

doi.org/10.1206/0003...

10 months ago 105 32 10 4
A grey stair step structure in a case covered in marine snail shells of various sizes, shapes, and colors. My ghostly reflection haunts the narrative.

A grey stair step structure in a case covered in marine snail shells of various sizes, shapes, and colors. My ghostly reflection haunts the narrative.

Happy #molluskMonday! A display from our new exhibit at the Museum of the Earth in #Ithaca. This case is meant to show how diverse marine #snails are, with predatory species on this side, and other ecologies on the other. 82 snails in this case, >500 mollusc specimens on exhibit #Invertebrates 🦑🐌

10 months ago 26 6 0 1

Reposting for #MolluscMonday / #MolluskMonday

10 months ago 1 0 0 0
Photograph of Pleistocene mollusk fossils from the Caloosahatchee Formation of Florida.

Photograph of Pleistocene mollusk fossils from the Caloosahatchee Formation of Florida.

🚨Postdoc Opportunity in Invert Paleontology🚨
Milwaukee Public Museum is searching for a postdoc to assist with a research project focused on Plio-Pleistocene to Recent mollusks from the southeastern United States. Details available at: www.paycomonline.net/v4/ats/web.p...
Please share #FossilFriday

10 months ago 8 11 0 3
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Postdoctoral Fellowship in Paleontology - Milwaukee, WI 53233 - Indeed.com Milwaukee Public Museum Inc

The Milwaukee Public Museum seeks a postdoctoral fellow in Invertebrate Paleontology to assist with an NSF-funded project on W. Atlantic Mollusks.

The position is dependent upon continued NSF support and will have a duration of two years.

www.indeed.com/viewjob?jk=7...

10 months ago 27 20 0 0
Photograph of Pleistocene mollusk fossils from the Caloosahatchee Formation of Florida.

Photograph of Pleistocene mollusk fossils from the Caloosahatchee Formation of Florida.

🚨Postdoc Opportunity in Invert Paleontology🚨
Milwaukee Public Museum is searching for a postdoc to assist with a research project focused on Plio-Pleistocene to Recent mollusks from the southeastern United States. Details available at: www.paycomonline.net/v4/ats/web.p...
Please share #FossilFriday

10 months ago 8 11 0 3

Oops - my bad. The one on the upper right is labeled Hemipsalodon (also a cast; original specimen from Wyoming).

10 months ago 0 0 1 0
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Photograph of a cast of the skull of the ancient cat Hoplophoneus oreodontis. Specimen on display at the Milwaukee Public Museum.

Photograph of a cast of the skull of the ancient cat Hoplophoneus oreodontis. Specimen on display at the Milwaukee Public Museum.

The label says "Hoplophoneus oreodontis," but I'm not sure if that name is current. The specimen is a cast of a specimen from Nebraska.

10 months ago 0 0 1 0
Photograph of the fossil skeleton of the swift-running rhinoceros Trigonia osborni on display at the Milwaukee Public Museum.

Photograph of the fossil skeleton of the swift-running rhinoceros Trigonia osborni on display at the Milwaukee Public Museum.

Happy #FossilFriday!! Here's MPM's "Swift-Running Rhinoceros," Trigonias osborni from the Eocene of Colorado. Looks pretty fast I guess.

10 months ago 41 11 1 0
Photograph of a Devonian rugose coral with a pen for scale.

Photograph of a Devonian rugose coral with a pen for scale.

Happy #FossilFriday from this Devonian rugose coral from Nevada that had a bad day but managed to right itself. MPM collections.

11 months ago 42 9 0 0
Employment in paleontology: status and trends in the United States | Paleobiology | Cambridge Core Employment in paleontology: status and trends in the United States

Our report on employment is out in Paleobiology
(They did let us append that the paper was accepted before the election/changes to NSF and other granting agencies)

Employment in paleontology: status and trends in the United States | Paleobiology | Cambridge Core - www.cambridge.org/core/journal...

11 months ago 56 33 5 7
A cream-coloured piece of cloth with an embroidered capital A at the centre in black and around it, clockwise from top left, embroideries of Argonauta, Aporrhais, Aplysia and Architeuthis

A cream-coloured piece of cloth with an embroidered capital A at the centre in black and around it, clockwise from top left, embroideries of Argonauta, Aporrhais, Aplysia and Architeuthis

What's up #InverteFest, I've been embroidering a mollusc alphabet on and off since 2018, and I haven't shared them on bsky yet, so here we go - A is for Argonauta, Aporrhais, Aplysia and Architeuthis!

11 months ago 301 54 3 9
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😲 #FossilFriday‼️ Not one but two rare, pyritized ammonites were discovered at Harrell Station during a recent trip organized for the Birmingham Paleo Society. The only two non-jaw pieces in the last 5 years! Cretaceous (~82 Ma), Alabama. Collectors: Chase Egli & Adiel Klompmaker @almnh.bsky.social

11 months ago 21 4 0 0
Photograph of a fossil trilobite head.

Photograph of a fossil trilobite head.

Partial cephalon of Ceraurus mifflinensis with a doozy of a genal spine. From the Ordovician Platteville Fm. of Rock Co., Wisconsin. MPM P31657. #fossilfriday

11 months ago 3 1 0 0
Photograph of a specimen of the Devonian trilobite Eldredgeops rana.

Photograph of a specimen of the Devonian trilobite Eldredgeops rana.

New "On the Basis of Stasis" paper out with @bruceslieberman.bsky.social in Paleobiology where we emphasize -- using Eldredgeops rana as a test case -- the importance of museum voucher specimens for documenting stratigraphic durations in the fossil record. doi.org/10.1017/pab....

11 months ago 16 7 1 0
On the basis of stasis: documentation of taxon durations in paleontology and the necessity of museum voucher specimens | Paleobiology | Cambridge Core On the basis of stasis: documentation of taxon durations in paleontology and the necessity of museum voucher specimens

Great to be involved in #Paleobiology paper led by @jonhendricks.bsky.social showing #stasis & #punctuatedequilibria in fossil record @nilese.bsky.social #macroevolution - also evaluates records in databases @paleodb.bsky.social doi.org/10.1017/pab....

11 months ago 21 11 0 0
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