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Morrowites ✝
| Description | Morrowites, named by Cobban and Hook, 1983, is a moderate to large-sized ammonite with quadrangular to depressed whorls, broadly rounded to depressed venter, low ribs, umbilical and inner and outer ventrolateral tubercles and smooth early whorls except for occasional ribs along weak constrictions. The suture is moderately simple and has an unusually broad bifid first lateral lobe. It is so far restricted to the Lower Turonian stage, in the mid Cretaceous. From Wikipedia article at https://en.wikipedia.org/wiki/Morrowites, which is released under the Creative Commons Attribution-Share-Alike License 3.0. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Source Data |
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| Rank | genus | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (GBIF) | Life : Animalia : Mollusca : Cephalopoda : Ammonoidea : Acanthoceratidae : Morrowites | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomy (PBDB) | Life : Animalia : Mollusca : Cephalopoda : Ammonitida : Acanthoceratidae : Morrowites | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxonomic Status (GBIF) | accepted | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Classification (PBDB,GBIF) |
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| Scientific Name | Morrowites Cobban & Hook, 1983 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Name Published In | Memoirs New Mex. St. Bur. Mines miner. Resour. No. 41 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Opinions (PBDB) |
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| Status (PBDB) | extinct | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taxon Size (PBDB) | 5 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| First Recorded Appearance | 93.5 - 89.3 Ma Late/Upper Cretaceous | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Last Recorded Appearance | 93.5 - 89.3 Ma Late/Upper Cretaceous | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Motility | fast-moving (based on Ammonoidea) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Vision | well-developed (based on Cephalopoda) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Diet | carnivore (based on Ammonoidea) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Taphonomy | aragonite (based on Ammonoidea) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Primary Reference (PBDB) | W. A. Cobban and S. C. Hook. 1983. Mid-Cretaceous (Turonian) ammonite fauna from Fence Lake area of west-central New Mexico. New Mexico Bureau of Mines and Mineral Resources Memoir 41:1-50 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wikipedia | https://en.wikipedia.org/wiki/Morrowites |
Fossil Distribution
Subtaxa
| Name | Status | Common Name(s) | Fossil Occurrences | Oldest | Youngest |
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| Morrowites depressus ✝ species | accepted (GBIF) listed (PBDB) | 6 | 93.5 Ma Late/Upper Cretaceous | 93.5 Ma Late/Upper Cretaceous | |
| Morrowites dixeyi ✝ species | accepted (GBIF) listed (PBDB) | 1 | 93.5 Ma Late/Upper Cretaceous | 93.5 Ma Late/Upper Cretaceous | |
| Morrowites subdepressus ✝ species | accepted (GBIF) listed (PBDB) | 4 | 93.5 Ma Late/Upper Cretaceous | 93.5 Ma Late/Upper Cretaceous | |
| Morrowites wingi ✝ species | accepted (GBIF) listed (PBDB) | 2 | 93.5 Ma Late/Upper Cretaceous | 93.5 Ma Late/Upper Cretaceous |
Synonymy List
| Year | Name and Author |
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| 1983 | Morrowites Cobban and Hook p. 8 |
| 1988 | Morrowites Kennedy and Cobban p. 596 |
| 1996 | Morrowites Wright et al. p. 167 |
| 2002 | Morrowites Sepkoski, Jr. |
References
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
