| Tityosteus Temporal range:
| |
|---|---|
| |
| Artist's reconstruction of T. rieversi | |
Scientific classification
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | † Placodermi |
| Order: | † Arthrodira |
| Suborder: | † Brachythoraci |
| Family: | † Homostiidae |
| Genus: | †
Tityosteus Gross, 1960 |
| Species: | †T. rieversi
|
| Binomial name | |
| †Tityosteus rieversi Gross, 1960
| |
Tityosteus is an extinct genus of homostiid arthrodire from the Early Emsian of the Early Devonian, with fossils known from Germany, the Ibero-Armorican Trough, and southern Siberia. [1] It attained a length of 2.5 meters. [2]
Description
Tityosteus has only an 11 cm right marginal plate known, and margin ends and parts, in addition to the central plate overlap area being broken. [1] However, Denison, 1978 said that it had a nuchal, attaining a length of 25 cm. The book also estimates T. rieversi of reaching lengths of 2.5 m (8.2 feet). According to "Tityosteus, A MARINE FISH (ARTHRODIRA, HOMOSTIIDAE) FROM THE EMSIAN OF ARAGÓN, SPAIN, AND ITS DISTRIBUTION", given Tityosteus's distribution, and Carolowilhelma (a pelagic arthrodire), being from similar facies as Tityosteus ( Eifelian of Aragón, Spain), it may have been pelagic, and able to cross open waters. [1]
Diet
While the inferognathals of Tityosteus have not been found, they could be either "toothless", like Homosteus, which has been suggested to be planktivorous, [1] [3] or possessing fine denticles, like Antineosteus. [1] It has been suggested that Tityosteus probably was similar to the whale shark, in size, and habitat. [1]
Phylogeny
Tityosteus is part of the clade Migmatocephala, with other homostiids.
This cladogram is based on "FISH FROM THE EMSIAN OF ARAGÓN". [1]
| |||||||
References
- ^ a b c d e f g Mark-Kurik, E.; Carls, P. (2004). "Tityosteus, a marine fish (Arthrodira, Homostiidae) from the Emsian of Aragón, Spain, and its distribution" (PDF). Spanish Journal of Palaeontology. 19 (2). S2CID 218464633. Retrieved 2023-01-14.
- ^ Denison, Robert Howland (1978). Placodermi. München [Germany]. ISBN 978-0-89574-027-4.
- ^ Coatham, Samuel J.; Vinther, Jakob; Rayfield, Emily J.; Klug, Christian (2020-05-20). "Was the Devonian placoderm Titanichthys a suspension feeder?". Royal Society Open Science. 7 (5): 200272. Bibcode: 2020RSOS....700272C. doi: 10.1098/rsos.200272. PMC 7277245. PMID 32537223.
| |||||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||||
| Tityosteus Temporal range:
| |
|---|---|
|
| |
| Artist's reconstruction of T. rieversi | |
|
Scientific classification
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | † Placodermi |
| Order: | † Arthrodira |
| Suborder: | † Brachythoraci |
| Family: | † Homostiidae |
| Genus: | †
Tityosteus Gross, 1960 |
| Species: | †T. rieversi
|
| Binomial name | |
| †Tityosteus rieversi Gross, 1960
| |
Tityosteus is an extinct genus of homostiid arthrodire from the Early Emsian of the Early Devonian, with fossils known from Germany, the Ibero-Armorican Trough, and southern Siberia. [1] It attained a length of 2.5 meters. [2]
Description
Tityosteus has only an 11 cm right marginal plate known, and margin ends and parts, in addition to the central plate overlap area being broken. [1] However, Denison, 1978 said that it had a nuchal, attaining a length of 25 cm. The book also estimates T. rieversi of reaching lengths of 2.5 m (8.2 feet). According to "Tityosteus, A MARINE FISH (ARTHRODIRA, HOMOSTIIDAE) FROM THE EMSIAN OF ARAGÓN, SPAIN, AND ITS DISTRIBUTION", given Tityosteus's distribution, and Carolowilhelma (a pelagic arthrodire), being from similar facies as Tityosteus ( Eifelian of Aragón, Spain), it may have been pelagic, and able to cross open waters. [1]
Diet
While the inferognathals of Tityosteus have not been found, they could be either "toothless", like Homosteus, which has been suggested to be planktivorous, [1] [3] or possessing fine denticles, like Antineosteus. [1] It has been suggested that Tityosteus probably was similar to the whale shark, in size, and habitat. [1]
Phylogeny
Tityosteus is part of the clade Migmatocephala, with other homostiids.
This cladogram is based on "FISH FROM THE EMSIAN OF ARAGÓN". [1]
| |||||||
References
- ^ a b c d e f g Mark-Kurik, E.; Carls, P. (2004). "Tityosteus, a marine fish (Arthrodira, Homostiidae) from the Emsian of Aragón, Spain, and its distribution" (PDF). Spanish Journal of Palaeontology. 19 (2). S2CID 218464633. Retrieved 2023-01-14.
- ^ Denison, Robert Howland (1978). Placodermi. München [Germany]. ISBN 978-0-89574-027-4.
- ^ Coatham, Samuel J.; Vinther, Jakob; Rayfield, Emily J.; Klug, Christian (2020-05-20). "Was the Devonian placoderm Titanichthys a suspension feeder?". Royal Society Open Science. 7 (5): 200272. Bibcode: 2020RSOS....700272C. doi: 10.1098/rsos.200272. PMC 7277245. PMID 32537223.
| |||||||||||||||||||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||||||||||||||||||