preprints_ui: 6zm3a_v1
Data license: ODbL (database) & original licenses (content) · Data source: Open Science Framework
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| 6zm3a_v1 | Microburrows and Coprulus oblongus in Cryptic Cavities of Cryptozoön Stromatolites from Late Cambrian Carbonates of New York, USA | Late Cambrian stromatolites (Cryptozoön; Little Falls Formation, Late Cambrian [ca. 490 Ma], Herkimer County, New York, USA) from the classic Herkimer “diamond” locality host an accumulation of microcoprolites (Coprulus oblongus) in a cryptic cavity between stromatolite columns. The cryptic cavity space is partly delineated by a region of overhanging stromatolitic laminae, a phenomenon known to occur in New York Cryptozoöns. The same rock slab hosts tiny burrows, some of which are partly filled with rounded quartz grains that were introduced into the burrow as backfill sediment. The association of pellet accumulations and microburrows demonstrates that the New York Cryptozoön community had a significant component of small metazoans, comparable to the microburrow nests reported from early Cambrian archaeocyath-calcimicrobe communities. Pervasive burrowing in selected laminae of the New York Cryptozoön communities indicate that these organo-sedimentary structures are best considered as microbial-metazoan constructions or benthic microbial-metazoan communities (BMMC). This result has implications for understanding the origin of animals. Controversial structures in the 890 Ma Little Dal Group, northwestern Canada, are directly comparable to the vermiform structures observed in the New York Cryptozoöns. Coprulus of comparable age (800-900 Ma, Baish Group, Saudia Arabia) was reported in the 1980s. Metazoan may thus date back to the time of Rodinia. | 2024-06-07T15:51:28.979132 | 2024-06-11T15:48:00.552119 | 2024-06-11T12:55:34.219766 | paleorxiv | 1 | accepted | 1 | 1 | https://doi.org/10.31233/osf.io/6zm3a | CC-By Attribution 4.0 International | Cambrian; New York; coprolites; ichnofossils; origin of animals; stromatolites | ["Cambrian", "New York", "coprolites", "ichnofossils", "origin of animals", "stromatolites"] | Mark McMenamin | [{"id": "r2kcx", "name": "Mark McMenamin", "index": 0, "orcid": "0000-0002-3764-0963", "bibliographic": true}] | Mark McMenamin | Earth and Life Sciences; Paleobiology; Ichnology | [{"id": "5995e22f54be8102ecb31c7c", "text": "Earth and Life Sciences"}, {"id": "5995e22f54be8102ecb31c7f", "text": "Paleobiology"}, {"id": "5b4e540dc698300076b4c730", "text": "Ichnology"}] | https://osf.io/download/66632c8877ff4c526ae04c93 | 0 | no | not_applicable | [] | 2025-04-09T20:49:37.252508 |