A possible home for a bizarre Carboniferous animal : is Typhloesus a pelagic gastropod?
By contrast to many previously enigmatic Palaeozoic fossils, the Carboniferous metazoan Typhloesus has defied phylogenetic placement. Here, we document new features, including possible phosphatized muscle tissues and a hitherto unrecognized feeding apparatus with two sets of ca 20 spinose teeth whose closest similarities appear to lie with the molluscan radula. The ribbon-like structure, located well behind the mouth area and deep into the anterior part of the body, is interpreted as being in an inverted proboscis configuration. Gut contents, mostly conodonts, in the midgut area demonstrate that Typhloesus was an active predator. This animal was capable of propelling itself in the water column using its flexible body and a prominent posterior fin. The affinity of Typhloesus as a pelagic mollusc remains problematic but may lie more closely with the gastropods. Heteropod gastropods share with Typhloesus an active predatory lifestyle and have a comparable general body organization, albeit they possess characteristic aragonitic shells and their origins in the Jurassic post-date Typhloesus. Typhloesus may represent an independent radiation of Mid-Palaeozoic pelagic gastropods.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2022 |
|---|---|
| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:18 |
|---|---|
| Enthalten in: |
Biology letters - 18(2022), 9 vom: 28. Sept., Seite 20220179 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Conway Morris, Simon [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
Carboniferous |
|---|
| Anmerkungen: |
Date Completed 23.09.2022 Date Revised 22.12.2022 published: Print-Electronic figshare: 10.6084/m9.figshare.c.6186132 Citation Status MEDLINE |
|---|
| doi: |
10.1098/rsbl.2022.0179 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM346431476 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM346431476 | ||
| 003 | DE-627 | ||
| 005 | 20231226031435.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231226s2022 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1098/rsbl.2022.0179 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1154.xml |
| 035 | |a (DE-627)NLM346431476 | ||
| 035 | |a (NLM)36126687 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Conway Morris, Simon |e verfasserin |4 aut | |
| 245 | 1 | 2 | |a A possible home for a bizarre Carboniferous animal |b is Typhloesus a pelagic gastropod? |
| 264 | 1 | |c 2022 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 23.09.2022 | ||
| 500 | |a Date Revised 22.12.2022 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a figshare: 10.6084/m9.figshare.c.6186132 | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a By contrast to many previously enigmatic Palaeozoic fossils, the Carboniferous metazoan Typhloesus has defied phylogenetic placement. Here, we document new features, including possible phosphatized muscle tissues and a hitherto unrecognized feeding apparatus with two sets of ca 20 spinose teeth whose closest similarities appear to lie with the molluscan radula. The ribbon-like structure, located well behind the mouth area and deep into the anterior part of the body, is interpreted as being in an inverted proboscis configuration. Gut contents, mostly conodonts, in the midgut area demonstrate that Typhloesus was an active predator. This animal was capable of propelling itself in the water column using its flexible body and a prominent posterior fin. The affinity of Typhloesus as a pelagic mollusc remains problematic but may lie more closely with the gastropods. Heteropod gastropods share with Typhloesus an active predatory lifestyle and have a comparable general body organization, albeit they possess characteristic aragonitic shells and their origins in the Jurassic post-date Typhloesus. Typhloesus may represent an independent radiation of Mid-Palaeozoic pelagic gastropods | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Carboniferous | |
| 650 | 4 | |a Typhloesus | |
| 650 | 4 | |a molluscs | |
| 700 | 1 | |a Caron, Jean-Bernard |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Biology letters |d 2005 |g 18(2022), 9 vom: 28. Sept., Seite 20220179 |w (DE-627)NLM163844992 |x 1744-957X |7 nnns |
| 773 | 1 | 8 | |g volume:18 |g year:2022 |g number:9 |g day:28 |g month:09 |g pages:20220179 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1098/rsbl.2022.0179 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 18 |j 2022 |e 9 |b 28 |c 09 |h 20220179 | ||